From def932ca865b86a5057517d8a0e27c0ca72a0815 Mon Sep 17 00:00:00 2001
From: Rich Kadel <richkadel@google.com>
Date: Mon, 30 Nov 2020 23:58:08 -0800
Subject: [PATCH] Combination of commits

Fixes multiple issue with counters, with simplification

  Includes a change to the implicit else span in ast_lowering, so coverage
  of the implicit else no longer spans the `then` block.

  Adds coverage for unused closures and async function bodies.

  Fixes: #78542

Adding unreachable regions for known MIR missing from coverage map

Cleaned up PR commits, and removed link-dead-code requirement and tests

  Coverage no longer depends on Issue #76038 (`-C link-dead-code` is
  no longer needed or enforced, so MSVC can use the same tests as
  Linux and MacOS now)

Restrict adding unreachable regions to covered files

  Improved the code that adds coverage for uncalled functions (with MIR
  but not-codegenned) to avoid generating coverage in files not already
  included in the files with covered functions.

Resolved last known issue requiring --emit llvm-ir workaround

  Fixed bugs in how unreachable code spans were added.
---
 compiler/rustc_ast_lowering/src/expr.rs       |    2 +-
 compiler/rustc_codegen_llvm/src/attributes.rs |    3 -
 .../src/coverageinfo/mapgen.rs                |  155 +-
 compiler/rustc_codegen_ssa/src/lib.rs         |    1 +
 compiler/rustc_middle/src/arena.rs            |    1 +
 compiler/rustc_middle/src/hir/map/mod.rs      |    2 +-
 compiler/rustc_middle/src/query/mod.rs        |   15 +
 compiler/rustc_middle/src/ty/codec.rs         |    6 +-
 .../rustc_mir/src/transform/coverage/graph.rs |   20 +-
 .../rustc_mir/src/transform/coverage/mod.rs   |   75 +-
 .../rustc_mir/src/transform/coverage/query.rs |   37 +-
 .../rustc_mir/src/transform/coverage/spans.rs |  112 +-
 compiler/rustc_session/src/options.rs         |    3 +-
 compiler/rustc_session/src/session.rs         |   28 +-
 .../source-based-code-coverage.md             |  103 +-
 ...l_flow_simplification.hello.ConstProp.diff |    2 +-
 ...simplification.hello.PreCodegen.before.mir |    2 +-
 ...rage_graphviz.bar.InstrumentCoverage.0.dot |    2 +-
 ...age_graphviz.main.InstrumentCoverage.0.dot |    4 +-
 ...e_deref.do_not_miscompile.InstCombine.diff |    2 +-
 ...ument_coverage.bar.InstrumentCoverage.diff |    2 +-
 ...ment_coverage.main.InstrumentCoverage.diff |    6 +-
 ...e_38669.main.SimplifyCfg-initial.after.mir |    2 +-
 .../issue_41888.main.ElaborateDrops.after.mir |    4 +-
 ....main.SimplifyCfg-promote-consts.after.mir |    2 +-
 ...s.foo.MatchBranchSimplification.32bit.diff |    2 +-
 ...s.foo.MatchBranchSimplification.64bit.diff |    2 +-
 ...mplify_cfg.main.SimplifyCfg-early-opt.diff |    2 +-
 ...simplify_cfg.main.SimplifyCfg-initial.diff |    2 +-
 ...ain.SimplifyBranches-after-const-prop.diff |    2 +-
 ..._locals_fixedpoint.foo.SimplifyLocals.diff |    4 +-
 ...reachable.main.UnreachablePropagation.diff |    2 +-
 ...hable_asm.main.UnreachablePropagation.diff |    2 +-
 ...ble_asm_2.main.UnreachablePropagation.diff |    2 +-
 ...diverging.main.UnreachablePropagation.diff |    4 +-
 .../coverage-llvmir-deadcode/Makefile         |   11 -
 .../coverage-llvmir/Makefile                  |   16 +-
 .../coverage-reports-deadcode/Makefile        |   15 -
 .../expected_export_coverage.abort.json       |   59 -
 .../expected_export_coverage.assert.json      |   59 -
 .../expected_export_coverage.async.json       |   59 -
 .../expected_export_coverage.closure.json     |   59 -
 .../expected_export_coverage.conditions.json  |   59 -
 .../expected_export_coverage.drop_trait.json  |   59 -
 .../expected_export_coverage.generics.json    |   59 -
 .../expected_export_coverage.if.json          |   59 -
 .../expected_export_coverage.if_else.json     |   59 -
 .../expected_export_coverage.inner_items.json |   59 -
 ...expected_export_coverage.lazy_boolean.json |   59 -
 ...pected_export_coverage.loops_branches.json |   59 -
 ...expected_export_coverage.nested_loops.json |   59 -
 .../expected_export_coverage.overflow.json    |   59 -
 ...expected_export_coverage.panic_unwind.json |   59 -
 .../expected_export_coverage.partial_eq.json  |   59 -
 .../expected_export_coverage.simple_loop.json |   59 -
 ...expected_export_coverage.simple_match.json |   59 -
 ...pected_export_coverage.tight_inf_loop.json |   59 -
 ...cted_export_coverage.try_error_result.json |   59 -
 .../expected_export_coverage.while.json       |   59 -
 ...ected_export_coverage.while_early_ret.json |   59 -
 .../expected_export_coverage.yield.json       |   59 -
 .../expected_show_coverage.abort.txt          |   35 -
 .../expected_show_coverage.assert.txt         |   34 -
 .../expected_show_coverage.async.txt          |   66 -
 .../expected_show_coverage.closure.txt        |   94 -
 .../expected_show_coverage.conditions.txt     |  106 -
 .../expected_show_coverage.drop_trait.txt     |   34 -
 .../expected_show_coverage.generics.txt       |   67 -
 .../expected_show_coverage.if.txt             |   30 -
 .../expected_show_coverage.if_else.txt        |   41 -
 .../expected_show_coverage.inner_items.txt    |   60 -
 .../expected_show_coverage.lazy_boolean.txt   |   65 -
 ...xpected_show_coverage.loop_break_value.txt |   14 -
 .../expected_show_coverage.loops_branches.txt |   38 -
 .../expected_show_coverage.nested_loops.txt   |   26 -
 .../expected_show_coverage.overflow.txt       |   64 -
 .../expected_show_coverage.panic_unwind.txt   |   50 -
 .../expected_show_coverage.partial_eq.txt     |  111 -
 .../expected_show_coverage.simple_loop.txt    |   37 -
 .../expected_show_coverage.simple_match.txt   |   46 -
 .../expected_show_coverage.tight_inf_loop.txt |    6 -
 ...xpected_show_coverage.try_error_result.txt |   38 -
 .../expected_show_coverage.while.txt          |    6 -
 ...expected_show_coverage.while_early_ret.txt |   48 -
 .../expected_show_coverage.yield.txt          |   38 -
 .../expected_show_coverage_counters.abort.txt |   41 -
 ...expected_show_coverage_counters.assert.txt |   54 -
 .../expected_show_coverage_counters.async.txt |   85 -
 ...xpected_show_coverage_counters.closure.txt |   94 -
 ...cted_show_coverage_counters.conditions.txt |  304 -
 ...cted_show_coverage_counters.drop_trait.txt |   22 -
 ...pected_show_coverage_counters.generics.txt |   48 -
 .../expected_show_coverage_counters.if.txt    |   21 -
 ...xpected_show_coverage_counters.if_else.txt |   30 -
 ...ted_show_coverage_counters.inner_items.txt |   44 -
 ...ed_show_coverage_counters.lazy_boolean.txt |  131 -
 ...how_coverage_counters.loop_break_value.txt |    6 -
 ..._show_coverage_counters.loops_branches.txt |   37 -
 ...ed_show_coverage_counters.nested_loops.txt |   69 -
 ...pected_show_coverage_counters.overflow.txt |   53 -
 ...ed_show_coverage_counters.panic_unwind.txt |   50 -
 ...cted_show_coverage_counters.partial_eq.txt |   53 -
 ...ted_show_coverage_counters.simple_loop.txt |   37 -
 ...ed_show_coverage_counters.simple_match.txt |   57 -
 ..._show_coverage_counters.tight_inf_loop.txt |   10 -
 ...how_coverage_counters.try_error_result.txt |   72 -
 .../expected_show_coverage_counters.while.txt |   18 -
 ...show_coverage_counters.while_early_ret.txt |   38 -
 .../expected_show_coverage_counters.yield.txt |   90 -
 .../coverage-reports/Makefile                 |    7 +-
 .../expected_export_coverage.abort.json       |   24 +-
 .../expected_export_coverage.assert.json      |   12 +-
 .../expected_export_coverage.async.json       |   52 +-
 .../expected_export_coverage.closure.json     |   52 +-
 .../expected_export_coverage.conditions.json  |   16 +-
 .../expected_export_coverage.dead_code.json}  |   42 +-
 .../expected_export_coverage.drop_trait.json  |   16 +-
 .../expected_export_coverage.generics.json    |   16 +-
 .../expected_export_coverage.if.json          |   20 +-
 .../expected_export_coverage.if_else.json     |   12 +-
 .../expected_export_coverage.inner_items.json |    8 +-
 ...expected_export_coverage.lazy_boolean.json |   24 +-
 ...pected_export_coverage.loops_branches.json |   12 +-
 ...expected_export_coverage.nested_loops.json |   24 +-
 .../expected_export_coverage.overflow.json    |   24 +-
 ...expected_export_coverage.panic_unwind.json |   12 +-
 .../expected_export_coverage.partial_eq.json  |   44 +-
 .../expected_export_coverage.simple_loop.json |   20 +-
 ...expected_export_coverage.simple_match.json |   20 +-
 ...pected_export_coverage.tight_inf_loop.json |    8 +-
 ...cted_export_coverage.try_error_result.json |   16 +-
 .../expected_export_coverage.while.json       |   12 +-
 ...ected_export_coverage.while_early_ret.json |   12 +-
 .../expected_export_coverage.yield.json       |   24 +-
 .../expected_show_coverage.abort.txt          |   79 +-
 .../expected_show_coverage.assert.txt         |    6 +-
 .../expected_show_coverage.async.txt          |  185 +-
 .../expected_show_coverage.closure.txt        |   76 +-
 .../expected_show_coverage.conditions.txt     |  114 +-
 .../expected_show_coverage.dead_code.txt      |   39 +
 .../expected_show_coverage.drop_trait.txt     |    4 +-
 .../expected_show_coverage.generics.txt       |   32 +-
 .../expected_show_coverage.if.txt             |   14 +-
 .../expected_show_coverage.if_else.txt        |    8 +-
 .../expected_show_coverage.inner_items.txt    |    4 +-
 .../expected_show_coverage.lazy_boolean.txt   |   11 +-
 .../expected_show_coverage.loops_branches.txt |    4 +-
 .../expected_show_coverage.nested_loops.txt   |    8 +-
 .../expected_show_coverage.overflow.txt       |    6 +-
 .../expected_show_coverage.panic_unwind.txt   |   12 +-
 .../expected_show_coverage.partial_eq.txt     |   61 +-
 .../expected_show_coverage.simple_loop.txt    |   16 +-
 .../expected_show_coverage.simple_match.txt   |   11 +-
 .../expected_show_coverage.tight_inf_loop.txt |    4 +-
 ...xpected_show_coverage.try_error_result.txt |    8 +-
 .../expected_show_coverage.while.txt          |    2 +-
 ...expected_show_coverage.while_early_ret.txt |    9 +-
 .../expected_show_coverage.yield.txt          |    2 +-
 .../expected_show_coverage_counters.abort.txt |   62 +-
 ...expected_show_coverage_counters.assert.txt |   17 +-
 .../expected_show_coverage_counters.async.txt |  384 +-
 ...xpected_show_coverage_counters.closure.txt |  139 +-
 ...cted_show_coverage_counters.conditions.txt |  387 +-
 ...ected_show_coverage_counters.dead_code.txt |   47 +
 ...cted_show_coverage_counters.drop_trait.txt |   16 +-
 ...pected_show_coverage_counters.generics.txt |   54 +-
 .../expected_show_coverage_counters.if.txt    |   10 +-
 ...xpected_show_coverage_counters.if_else.txt |    6 +-
 ...ted_show_coverage_counters.inner_items.txt |   30 +-
 ...ed_show_coverage_counters.lazy_boolean.txt |   58 +-
 ...how_coverage_counters.loop_break_value.txt |    6 +-
 ..._show_coverage_counters.loops_branches.txt |   18 +-
 ...ed_show_coverage_counters.nested_loops.txt |   29 +-
 ...pected_show_coverage_counters.overflow.txt |   17 +-
 ...ed_show_coverage_counters.panic_unwind.txt |   17 +-
 ...cted_show_coverage_counters.partial_eq.txt |   57 +-
 ...ted_show_coverage_counters.simple_loop.txt |   20 +-
 ...ed_show_coverage_counters.simple_match.txt |   20 +-
 ..._show_coverage_counters.tight_inf_loop.txt |   12 +-
 ...how_coverage_counters.try_error_result.txt |   21 +-
 .../expected_show_coverage_counters.while.txt |    6 +-
 ...show_coverage_counters.while_early_ret.txt |   12 +-
 .../expected_show_coverage_counters.yield.txt |   18 +-
 .../coverage-spanview-deadcode/Makefile       |   11 -
 ...ort.main.-------.InstrumentCoverage.0.html |   99 -
 ...ht_abort.-------.InstrumentCoverage.0.html |  164 -
 ...ert.main.-------.InstrumentCoverage.0.html |  103 -
 ...l_assert.-------.InstrumentCoverage.0.html |   97 -
 ...osure#0}.-------.InstrumentCoverage.0.html |   89 -
 ...osure#1}.-------.InstrumentCoverage.0.html |   89 -
 ...osure#2}.-------.InstrumentCoverage.0.html |   89 -
 ...block_on.-------.InstrumentCoverage.0.html |  226 -
 ...osure#0}.-------.InstrumentCoverage.0.html |   75 -
 ...osure#0}.-------.InstrumentCoverage.0.html |   80 -
 ...osure#0}.-------.InstrumentCoverage.0.html |   80 -
 ...osure#0}.-------.InstrumentCoverage.0.html |   82 -
 ...ync.main.-------.InstrumentCoverage.0.html |  133 -
 ...osure#0}.-------.InstrumentCoverage.0.html |   95 -
 ...osure#1}.-------.InstrumentCoverage.0.html |   95 -
 ...ure.main.-------.InstrumentCoverage.0.html | 4515 ---------
 ...ons.main.-------.InstrumentCoverage.0.html |  353 -
 ...ait.main.-------.InstrumentCoverage.0.html |  129 -
 ...#0}-drop.-------.InstrumentCoverage.0.html |  133 -
 ...ics.main.-------.InstrumentCoverage.0.html |  177 -
 ...strength.-------.InstrumentCoverage.0.html |   85 -
 ...#1}-drop.-------.InstrumentCoverage.0.html |  133 -
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 ...lse.main.-------.InstrumentCoverage.0.html |  173 -
 ...ait_func.-------.InstrumentCoverage.0.html |   93 -
 ...-in_func.-------.InstrumentCoverage.0.html |  178 -
 ...ait_func.-------.InstrumentCoverage.0.html |  101 -
 ...ems.main.-------.InstrumentCoverage.0.html |  187 -
 ...ean.main.-------.InstrumentCoverage.0.html |  229 -
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 ...pl#6}-eq.-------.InstrumentCoverage.0.html |   77 -
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 ...ort.main.-------.InstrumentCoverage.0.html |   50 +-
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 ...l_assert.-------.InstrumentCoverage.0.html |   14 +-
 ...sure#0}.-------.InstrumentCoverage.0.html} |   21 +-
 ...async.c.-------.InstrumentCoverage.0.html} |   15 +-
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 ...async.d.-------.InstrumentCoverage.0.html} |    6 +-
 ...sure#0}.-------.InstrumentCoverage.0.html} |    8 +-
 ...async.e.-------.InstrumentCoverage.0.html} |    6 +-
 ...osure#0}.-------.InstrumentCoverage.0.html |   27 +-
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 ...block_on.-------.InstrumentCoverage.0.html |  315 +-
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 .../async.f.-------.InstrumentCoverage.0.html |    2 +-
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 ...sync.foo.-------.InstrumentCoverage.0.html |    2 +-
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 .../async.g.-------.InstrumentCoverage.0.html |    5 +-
 ...osure#0}.-------.InstrumentCoverage.0.html |   14 +-
 .../async.h.-------.InstrumentCoverage.0.html |    6 +-
 ...osure#0}.-------.InstrumentCoverage.0.html |   25 +-
 .../async.i.-------.InstrumentCoverage.0.html |    8 +-
 ...sync.j-c.-------.InstrumentCoverage.0.html |   92 +
 ...sync.j-d.-------.InstrumentCoverage.0.html |   75 +
 ...sync.j-f.-------.InstrumentCoverage.0.html |   75 +
 .../async.j.-------.InstrumentCoverage.0.html |  108 +
 .../async.k.-------.InstrumentCoverage.0.html |   80 +
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 ...ync.main.-------.InstrumentCoverage.0.html |  156 +-
 ...osure#0}.-------.InstrumentCoverage.0.html |   26 +-
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 ...osure#1}.-------.InstrumentCoverage.0.html |    4 +-
 ...eld.main.-------.InstrumentCoverage.0.html |    2 +-
 src/test/run-make-fulldeps/coverage/abort.rs  |   35 +-
 src/test/run-make-fulldeps/coverage/async.rs  |   71 +-
 .../run-make-fulldeps/coverage/closure.rs     |   62 +
 .../run-make-fulldeps/coverage/conditions.rs  |   20 +-
 .../coverage/coverage_tools.mk                |   29 +-
 .../run-make-fulldeps/coverage/dead_code.rs   |   37 +
 .../run-make-fulldeps/coverage/generics.rs    |    6 +-
 .../coverage/panic_unwind.rs                  |    8 +-
 .../run-make-fulldeps/coverage/partial_eq.rs  |   57 +-
 .../coverage/while_early_ret.rs               |    5 -
 354 files changed, 12632 insertions(+), 20484 deletions(-)
 delete mode 100644 src/test/run-make-fulldeps/coverage-llvmir-deadcode/Makefile
 delete mode 100644 src/test/run-make-fulldeps/coverage-reports-deadcode/Makefile
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 create mode 100644 src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_pub_fn_not_in_library.-------.InstrumentCoverage.0.html
 create mode 100644 src/test/run-make-fulldeps/coverage/dead_code.rs

diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs
index 314e5103cc2de..e0e78a4d60953 100644
--- a/compiler/rustc_ast_lowering/src/expr.rs
+++ b/compiler/rustc_ast_lowering/src/expr.rs
@@ -347,7 +347,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         // `_ => else_block` where `else_block` is `{}` if there's `None`:
         let else_pat = self.pat_wild(span);
         let (else_expr, contains_else_clause) = match else_opt {
-            None => (self.expr_block_empty(span), false),
+            None => (self.expr_block_empty(span.shrink_to_hi()), false),
             Some(els) => (self.lower_expr(els), true),
         };
         let else_arm = self.arm(else_pat, else_expr);
diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs
index 62a7986c194f0..97c38e04bc182 100644
--- a/compiler/rustc_codegen_llvm/src/attributes.rs
+++ b/compiler/rustc_codegen_llvm/src/attributes.rs
@@ -127,9 +127,6 @@ fn set_probestack(cx: &CodegenCx<'ll, '_>, llfn: &'ll Value) {
         return;
     }
 
-    // FIXME(richkadel): Make sure probestack plays nice with `-Z instrument-coverage`
-    // or disable it if not, similar to above early exits.
-
     // Flag our internal `__rust_probestack` function as the stack probe symbol.
     // This is defined in the `compiler-builtins` crate for each architecture.
     llvm::AddFunctionAttrStringValue(
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
index 85aaa7e8893bf..ced3f21f74497 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
@@ -3,11 +3,14 @@ use crate::coverageinfo;
 use crate::llvm;
 
 use llvm::coverageinfo::CounterMappingRegion;
-use rustc_codegen_ssa::coverageinfo::map::{Counter, CounterExpression};
+use rustc_codegen_ssa::coverageinfo::map::{Counter, CounterExpression, FunctionCoverage};
 use rustc_codegen_ssa::traits::ConstMethods;
-use rustc_data_structures::fx::FxIndexSet;
+use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexSet};
+use rustc_hir::def_id::{DefId, DefIdSet, LOCAL_CRATE};
 use rustc_llvm::RustString;
 use rustc_middle::mir::coverage::CodeRegion;
+use rustc_middle::ty::{Instance, TyCtxt};
+use rustc_span::Symbol;
 
 use std::ffi::CString;
 
@@ -26,14 +29,17 @@ use tracing::debug;
 /// undocumented details in Clang's implementation (that may or may not be important) were also
 /// replicated for Rust's Coverage Map.
 pub fn finalize<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) {
+    let tcx = cx.tcx;
     // Ensure LLVM supports Coverage Map Version 4 (encoded as a zero-based value: 3).
     // If not, the LLVM Version must be less than 11.
     let version = coverageinfo::mapping_version();
     if version != 3 {
-        cx.tcx.sess.fatal("rustc option `-Z instrument-coverage` requires LLVM 11 or higher.");
+        tcx.sess.fatal("rustc option `-Z instrument-coverage` requires LLVM 11 or higher.");
     }
 
-    let function_coverage_map = match cx.coverage_context() {
+    debug!("Generating coverage map for CodegenUnit: `{}`", cx.codegen_unit.name());
+
+    let mut function_coverage_map = match cx.coverage_context() {
         Some(ctx) => ctx.take_function_coverage_map(),
         None => return,
     };
@@ -42,14 +48,15 @@ pub fn finalize<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) {
         return;
     }
 
+    add_unreachable_coverage(tcx, &mut function_coverage_map);
+
     let mut mapgen = CoverageMapGenerator::new();
 
     // Encode coverage mappings and generate function records
     let mut function_data = Vec::new();
     for (instance, function_coverage) in function_coverage_map {
-        debug!("Generate coverage map for: {:?}", instance);
-
-        let mangled_function_name = cx.tcx.symbol_name(instance).to_string();
+        debug!("Generate function coverage for {}, {:?}", cx.codegen_unit.name(), instance);
+        let mangled_function_name = tcx.symbol_name(instance).to_string();
         let function_source_hash = function_coverage.source_hash();
         let (expressions, counter_regions) =
             function_coverage.get_expressions_and_counter_regions();
@@ -228,3 +235,137 @@ fn save_function_record(
     let is_used = true;
     coverageinfo::save_func_record_to_mod(cx, func_name_hash, func_record_val, is_used);
 }
+
+/// When finalizing the coverage map, `FunctionCoverage` only has the `CodeRegion`s and counters for
+/// the functions that went through codegen; such as public functions and "used" functions
+/// (functions referenced by other "used" or public items). Any other functions considered unused,
+/// or "Unreachable" were still parsed and processed through the MIR stage.
+///
+/// We can find the unreachable functions by the set different of all MIR `DefId`s (`tcx` query
+/// `mir_keys`) minus the codegenned `DefId`s (`tcx` query `collect_and_partition_mono_items`).
+///
+/// *HOWEVER* the codegenned `DefId`s are partitioned across multiple `CodegenUnit`s (CGUs), and
+/// this function is processing a `function_coverage_map` for the functions (`Instance`/`DefId`)
+/// allocated to only one of those CGUs. We must NOT inject any "Unreachable" functions's
+/// `CodeRegion`s more than once, so we have to pick which CGU's `function_coverage_map` to add
+/// each "Unreachable" function to.
+///
+/// Some constraints:
+///
+/// 1. The file name of an "Unreachable" function must match the file name of the existing
+///    codegenned (covered) function to which the unreachable code regions will be added.
+/// 2. The function to which the unreachable code regions will be added must not be a genaric
+///    function (must not have type parameters) because the coverage tools will get confused
+///    if the codegenned function has more than one instantiation and additional `CodeRegion`s
+///    attached to only one of those instantiations.
+fn add_unreachable_coverage<'tcx>(
+    tcx: TyCtxt<'tcx>,
+    function_coverage_map: &mut FxHashMap<Instance<'tcx>, FunctionCoverage<'tcx>>,
+) {
+    // Note: If the crate *only* defines generic functions, there are no codegenerated non-generic
+    // functions to add any unreachable code to. In this case, the unreachable code regions will
+    // have no coverage, instead of having coverage with zero executions.
+    //
+    // This is probably still an improvement over Clang, which does not generate any coverage
+    // for uninstantiated template functions.
+
+    let has_non_generic_def_ids =
+        function_coverage_map.keys().any(|instance| instance.def.attrs(tcx).len() == 0);
+
+    if !has_non_generic_def_ids {
+        // There are no non-generic functions to add unreachable `CodeRegion`s to
+        return;
+    }
+
+    let all_def_ids: DefIdSet =
+        tcx.mir_keys(LOCAL_CRATE).iter().map(|local_def_id| local_def_id.to_def_id()).collect();
+
+    let (codegenned_def_ids, _) = tcx.collect_and_partition_mono_items(LOCAL_CRATE);
+
+    let mut unreachable_def_ids_by_file: FxHashMap<Symbol, Vec<DefId>> = FxHashMap::default();
+    for &non_codegenned_def_id in all_def_ids.difference(codegenned_def_ids) {
+        // Make sure the non-codegenned (unreachable) function has a file_name
+        if let Some(non_codegenned_file_name) = tcx.covered_file_name(non_codegenned_def_id) {
+            let def_ids = unreachable_def_ids_by_file
+                .entry(*non_codegenned_file_name)
+                .or_insert_with(|| Vec::new());
+            def_ids.push(non_codegenned_def_id);
+        }
+    }
+
+    if unreachable_def_ids_by_file.is_empty() {
+        // There are no unreachable functions with file names to add (in any CGU)
+        return;
+    }
+
+    // Since there may be multiple `CodegenUnit`s, some codegenned_def_ids may be codegenned in a
+    // different CGU, and will be added to the function_coverage_map for each CGU. Determine which
+    // function_coverage_map has the responsibility for publishing unreachable coverage
+    // based on file name:
+    //
+    // For each covered file name, sort ONLY the non-generic codegenned_def_ids, and if
+    // covered_def_ids.contains(the first def_id) for a given file_name, add the unreachable code
+    // region in this function_coverage_map. Otherwise, ignore it and assume another CGU's
+    // function_coverage_map will be adding it (because it will be first for one, and only one,
+    // of them).
+    let mut sorted_codegenned_def_ids: Vec<DefId> =
+        codegenned_def_ids.iter().map(|def_id| *def_id).collect();
+    sorted_codegenned_def_ids.sort_unstable();
+
+    let mut first_covered_def_id_by_file: FxHashMap<Symbol, DefId> = FxHashMap::default();
+    for &def_id in sorted_codegenned_def_ids.iter() {
+        // Only consider non-generic functions, to potentially add unreachable code regions
+        if tcx.generics_of(def_id).count() == 0 {
+            if let Some(covered_file_name) = tcx.covered_file_name(def_id) {
+                // Only add files known to have unreachable functions
+                if unreachable_def_ids_by_file.contains_key(covered_file_name) {
+                    first_covered_def_id_by_file.entry(*covered_file_name).or_insert(def_id);
+                }
+            }
+        }
+    }
+
+    // Get the set of def_ids with coverage regions, known by *this* CoverageContext.
+    let cgu_covered_def_ids: DefIdSet =
+        function_coverage_map.keys().map(|instance| instance.def.def_id()).collect();
+
+    let mut cgu_covered_files: FxHashSet<Symbol> = first_covered_def_id_by_file
+        .iter()
+        .filter_map(
+            |(&file_name, def_id)| {
+                if cgu_covered_def_ids.contains(def_id) { Some(file_name) } else { None }
+            },
+        )
+        .collect();
+
+    // Find the first covered, non-generic function (instance) for each cgu_covered_file. Take the
+    // unreachable code regions for that file, and add them to the function.
+    //
+    // There are three `for` loops here, but (a) the lists have already been reduced to the minimum
+    // required values, the lists are further reduced (by `remove()` calls) when elements are no
+    // longer needed, and there are several opportunities to branch out of loops early.
+    for (instance, function_coverage) in function_coverage_map.iter_mut() {
+        if instance.def.attrs(tcx).len() > 0 {
+            continue;
+        }
+        // The covered function is not generic...
+        let covered_def_id = instance.def.def_id();
+        if let Some(covered_file_name) = tcx.covered_file_name(covered_def_id) {
+            if !cgu_covered_files.remove(&covered_file_name) {
+                continue;
+            }
+            // The covered function's file is one of the files with unreachable code regions, so
+            // all of the unreachable code regions for this file will be added to this function.
+            for def_id in
+                unreachable_def_ids_by_file.remove(&covered_file_name).into_iter().flatten()
+            {
+                for &region in tcx.covered_code_regions(def_id) {
+                    function_coverage.add_unreachable_region(region.clone());
+                }
+            }
+            if cgu_covered_files.is_empty() {
+                break;
+            }
+        }
+    }
+}
diff --git a/compiler/rustc_codegen_ssa/src/lib.rs b/compiler/rustc_codegen_ssa/src/lib.rs
index 70b92b234e94c..8ec1eed440456 100644
--- a/compiler/rustc_codegen_ssa/src/lib.rs
+++ b/compiler/rustc_codegen_ssa/src/lib.rs
@@ -2,6 +2,7 @@
 #![feature(bool_to_option)]
 #![feature(option_expect_none)]
 #![feature(box_patterns)]
+#![feature(drain_filter)]
 #![feature(try_blocks)]
 #![feature(in_band_lifetimes)]
 #![feature(nll)]
diff --git a/compiler/rustc_middle/src/arena.rs b/compiler/rustc_middle/src/arena.rs
index 672073b1d3472..9a42bbe7bacdd 100644
--- a/compiler/rustc_middle/src/arena.rs
+++ b/compiler/rustc_middle/src/arena.rs
@@ -32,6 +32,7 @@ macro_rules! arena_types {
             [decode] borrowck_result:
                 rustc_middle::mir::BorrowCheckResult<$tcx>,
             [decode] unsafety_check_result: rustc_middle::mir::UnsafetyCheckResult,
+            [decode] code_region: rustc_middle::mir::coverage::CodeRegion,
             [] const_allocs: rustc_middle::mir::interpret::Allocation,
             // Required for the incremental on-disk cache
             [few] mir_keys: rustc_hir::def_id::DefIdSet,
diff --git a/compiler/rustc_middle/src/hir/map/mod.rs b/compiler/rustc_middle/src/hir/map/mod.rs
index 5e36362ec5916..598e28c1a3ab0 100644
--- a/compiler/rustc_middle/src/hir/map/mod.rs
+++ b/compiler/rustc_middle/src/hir/map/mod.rs
@@ -47,7 +47,7 @@ fn fn_decl<'hir>(node: Node<'hir>) -> Option<&'hir FnDecl<'hir>> {
     }
 }
 
-fn fn_sig<'hir>(node: Node<'hir>) -> Option<&'hir FnSig<'hir>> {
+pub fn fn_sig<'hir>(node: Node<'hir>) -> Option<&'hir FnSig<'hir>> {
     match &node {
         Node::Item(Item { kind: ItemKind::Fn(sig, _, _), .. })
         | Node::TraitItem(TraitItem { kind: TraitItemKind::Fn(sig, _), .. })
diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs
index 7822ecc2c1f76..1b5f7a2c12e72 100644
--- a/compiler/rustc_middle/src/query/mod.rs
+++ b/compiler/rustc_middle/src/query/mod.rs
@@ -346,6 +346,21 @@ rustc_queries! {
             cache_on_disk_if { key.is_local() }
         }
 
+        /// Returns the name of the file that contains the function body, if instrumented for coverage.
+        query covered_file_name(key: DefId) -> Option<Symbol> {
+            desc { |tcx| "retrieving the covered file name, if instrumented, for `{}`", tcx.def_path_str(key) }
+            storage(ArenaCacheSelector<'tcx>)
+            cache_on_disk_if { key.is_local() }
+        }
+
+        /// Returns the `CodeRegions` for a function that has instrumented coverage, in case the
+        /// function was optimized out before codegen, and before being added to the Coverage Map.
+        query covered_code_regions(key: DefId) -> Vec<&'tcx mir::coverage::CodeRegion> {
+            desc { |tcx| "retrieving the covered `CodeRegion`s, if instrumented, for `{}`", tcx.def_path_str(key) }
+            storage(ArenaCacheSelector<'tcx>)
+            cache_on_disk_if { key.is_local() }
+        }
+
         /// The `DefId` is the `DefId` of the containing MIR body. Promoteds do not have their own
         /// `DefId`. This function returns all promoteds in the specified body. The body references
         /// promoteds by the `DefId` and the `mir::Promoted` index. This is necessary, because
diff --git a/compiler/rustc_middle/src/ty/codec.rs b/compiler/rustc_middle/src/ty/codec.rs
index 1def4936860f1..b2fc3710cd673 100644
--- a/compiler/rustc_middle/src/ty/codec.rs
+++ b/compiler/rustc_middle/src/ty/codec.rs
@@ -162,7 +162,8 @@ encodable_via_deref! {
     ty::Region<'tcx>,
     &'tcx mir::Body<'tcx>,
     &'tcx mir::UnsafetyCheckResult,
-    &'tcx mir::BorrowCheckResult<'tcx>
+    &'tcx mir::BorrowCheckResult<'tcx>,
+    &'tcx mir::coverage::CodeRegion
 }
 
 pub trait TyDecoder<'tcx>: Decoder {
@@ -376,7 +377,8 @@ impl_decodable_via_ref! {
     &'tcx Allocation,
     &'tcx mir::Body<'tcx>,
     &'tcx mir::UnsafetyCheckResult,
-    &'tcx mir::BorrowCheckResult<'tcx>
+    &'tcx mir::BorrowCheckResult<'tcx>,
+    &'tcx mir::coverage::CodeRegion
 }
 
 #[macro_export]
diff --git a/compiler/rustc_mir/src/transform/coverage/graph.rs b/compiler/rustc_mir/src/transform/coverage/graph.rs
index 9d375633dcf51..7db88a686a76d 100644
--- a/compiler/rustc_mir/src/transform/coverage/graph.rs
+++ b/compiler/rustc_mir/src/transform/coverage/graph.rs
@@ -118,18 +118,8 @@ impl CoverageGraph {
 
             match term.kind {
                 TerminatorKind::Return { .. }
-                // FIXME(richkadel): Add test(s) for `Abort` coverage.
                 | TerminatorKind::Abort
-                // FIXME(richkadel): Add test(s) for `Assert` coverage.
-                // Should `Assert` be handled like `FalseUnwind` instead? Since we filter out unwind
-                // branches when creating the BCB CFG, aren't `Assert`s (without unwinds) just like
-                // `FalseUnwinds` (which are kind of like `Goto`s)?
-                | TerminatorKind::Assert { .. }
-                // FIXME(richkadel): Add test(s) for `Yield` coverage, and confirm coverage is
-                // sensible for code using the `yield` keyword.
                 | TerminatorKind::Yield { .. }
-                // FIXME(richkadel): Also add coverage tests using async/await, and threading.
-
                 | TerminatorKind::SwitchInt { .. } => {
                     // The `bb` has more than one _outgoing_ edge, or exits the function. Save the
                     // current sequence of `basic_blocks` gathered to this point, as a new
@@ -147,6 +137,14 @@ impl CoverageGraph {
                     // `Terminator`s `successors()` list) checking the number of successors won't
                     // work.
                 }
+
+                // The following `TerminatorKind`s are either not expected outside an unwind branch,
+                // or they should not (under normal circumstances) branch. Coverage graphs are
+                // simplified by assuring coverage results are accurate for well-behaved programs.
+                // Programs that panic and unwind may record slightly inaccurate coverage results
+                // for a coverage region containing the `Terminator` that began the panic. This
+                // is as intended. (See Issue #78544 for a possible future option to support
+                // coverage in test programs that panic.)
                 TerminatorKind::Goto { .. }
                 | TerminatorKind::Resume
                 | TerminatorKind::Unreachable
@@ -154,6 +152,7 @@ impl CoverageGraph {
                 | TerminatorKind::DropAndReplace { .. }
                 | TerminatorKind::Call { .. }
                 | TerminatorKind::GeneratorDrop
+                | TerminatorKind::Assert { .. }
                 | TerminatorKind::FalseEdge { .. }
                 | TerminatorKind::FalseUnwind { .. }
                 | TerminatorKind::InlineAsm { .. } => {}
@@ -278,6 +277,7 @@ rustc_index::newtype_index! {
     /// A node in the [control-flow graph][CFG] of CoverageGraph.
     pub(super) struct BasicCoverageBlock {
         DEBUG_FORMAT = "bcb{}",
+        const START_BCB = 0,
     }
 }
 
diff --git a/compiler/rustc_mir/src/transform/coverage/mod.rs b/compiler/rustc_mir/src/transform/coverage/mod.rs
index 192bb6680e420..18249530577a4 100644
--- a/compiler/rustc_mir/src/transform/coverage/mod.rs
+++ b/compiler/rustc_mir/src/transform/coverage/mod.rs
@@ -88,6 +88,7 @@ struct Instrumentor<'a, 'tcx> {
     pass_name: &'a str,
     tcx: TyCtxt<'tcx>,
     mir_body: &'a mut mir::Body<'tcx>,
+    fn_sig_span: Span,
     body_span: Span,
     basic_coverage_blocks: CoverageGraph,
     coverage_counters: CoverageCounters,
@@ -95,14 +96,19 @@ struct Instrumentor<'a, 'tcx> {
 
 impl<'a, 'tcx> Instrumentor<'a, 'tcx> {
     fn new(pass_name: &'a str, tcx: TyCtxt<'tcx>, mir_body: &'a mut mir::Body<'tcx>) -> Self {
-        let hir_body = hir_body(tcx, mir_body.source.def_id());
+        let (some_fn_sig, hir_body) = fn_sig_and_body(tcx, mir_body.source.def_id());
         let body_span = hir_body.value.span;
+        let fn_sig_span = match some_fn_sig {
+            Some(fn_sig) => fn_sig.span.with_hi(body_span.lo()),
+            None => body_span.shrink_to_lo(),
+        };
         let function_source_hash = hash_mir_source(tcx, hir_body);
         let basic_coverage_blocks = CoverageGraph::from_mir(mir_body);
         Self {
             pass_name,
             tcx,
             mir_body,
+            fn_sig_span,
             body_span,
             basic_coverage_blocks,
             coverage_counters: CoverageCounters::new(function_source_hash),
@@ -114,9 +120,15 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> {
         let source_map = tcx.sess.source_map();
         let mir_source = self.mir_body.source;
         let def_id = mir_source.def_id();
+        let fn_sig_span = self.fn_sig_span;
         let body_span = self.body_span;
 
-        debug!("instrumenting {:?}, span: {}", def_id, source_map.span_to_string(body_span));
+        debug!(
+            "instrumenting {:?}, fn sig span: {}, body span: {}",
+            def_id,
+            source_map.span_to_string(fn_sig_span),
+            source_map.span_to_string(body_span)
+        );
 
         let mut graphviz_data = debug::GraphvizData::new();
         let mut debug_used_expressions = debug::UsedExpressions::new();
@@ -138,6 +150,7 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> {
         // Compute `CoverageSpan`s from the `CoverageGraph`.
         let coverage_spans = CoverageSpans::generate_coverage_spans(
             &self.mir_body,
+            fn_sig_span,
             body_span,
             &self.basic_coverage_blocks,
         );
@@ -272,47 +285,13 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> {
                 bug!("Every BasicCoverageBlock should have a Counter or Expression");
             };
             graphviz_data.add_bcb_coverage_span_with_counter(bcb, &covspan, &counter_kind);
-            // FIXME(#78542): Can spans for `TerminatorKind::Goto` be improved to avoid special
-            // cases?
-            let some_code_region = if self.is_code_region_redundant(bcb, span, body_span) {
-                None
-            } else {
-                Some(make_code_region(file_name, &source_file, span, body_span))
-            };
-            inject_statement(self.mir_body, counter_kind, self.bcb_last_bb(bcb), some_code_region);
-        }
-    }
-
-    /// Returns true if the type of `BasicCoverageBlock` (specifically, it's `BasicBlock`s
-    /// `TerminatorKind`) with the given `Span` (relative to the `body_span`) is known to produce
-    /// a redundant coverage count.
-    ///
-    /// There is at least one case for this, and if it's not handled, the last line in a function
-    /// will be double-counted.
-    ///
-    /// If this method returns `true`, the counter (which other `Expressions` may depend on) is
-    /// still injected, but without an associated code region.
-    // FIXME(#78542): Can spans for `TerminatorKind::Goto` be improved to avoid special cases?
-    fn is_code_region_redundant(
-        &self,
-        bcb: BasicCoverageBlock,
-        span: Span,
-        body_span: Span,
-    ) -> bool {
-        if span.hi() == body_span.hi() {
-            // All functions execute a `Return`-terminated `BasicBlock`, regardless of how the
-            // function returns; but only some functions also _can_ return after a `Goto` block
-            // that ends on the closing brace of the function (with the `Return`). When this
-            // happens, the last character is counted 2 (or possibly more) times, when we know
-            // the function returned only once (of course). By giving all `Goto` terminators at
-            // the end of a function a `non-reportable` code region, they are still counted
-            // if appropriate, but they don't increment the line counter, as long as their is
-            // also a `Return` on that last line.
-            if let TerminatorKind::Goto { .. } = self.bcb_terminator(bcb).kind {
-                return true;
-            }
+            inject_statement(
+                self.mir_body,
+                counter_kind,
+                self.bcb_last_bb(bcb),
+                Some(make_code_region(file_name, &source_file, span, body_span)),
+            );
         }
-        false
     }
 
     /// `inject_coverage_span_counters()` looped through the `CoverageSpan`s and injected the
@@ -411,11 +390,6 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> {
         self.bcb_data(bcb).last_bb()
     }
 
-    #[inline]
-    fn bcb_terminator(&self, bcb: BasicCoverageBlock) -> &Terminator<'tcx> {
-        self.bcb_data(bcb).terminator(self.mir_body)
-    }
-
     #[inline]
     fn bcb_data(&self, bcb: BasicCoverageBlock) -> &BasicCoverageBlockData {
         &self.basic_coverage_blocks[bcb]
@@ -521,10 +495,13 @@ fn make_code_region(
     }
 }
 
-fn hir_body<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> &'tcx rustc_hir::Body<'tcx> {
+fn fn_sig_and_body<'tcx>(
+    tcx: TyCtxt<'tcx>,
+    def_id: DefId,
+) -> (Option<&'tcx rustc_hir::FnSig<'tcx>>, &'tcx rustc_hir::Body<'tcx>) {
     let hir_node = tcx.hir().get_if_local(def_id).expect("expected DefId is local");
     let fn_body_id = hir::map::associated_body(hir_node).expect("HIR node is a function with body");
-    tcx.hir().body(fn_body_id)
+    (hir::map::fn_sig(hir_node), tcx.hir().body(fn_body_id))
 }
 
 fn hash_mir_source<'tcx>(tcx: TyCtxt<'tcx>, hir_body: &'tcx rustc_hir::Body<'tcx>) -> u64 {
diff --git a/compiler/rustc_mir/src/transform/coverage/query.rs b/compiler/rustc_mir/src/transform/coverage/query.rs
index e86bb96d29c30..aa34ae70ef1a4 100644
--- a/compiler/rustc_mir/src/transform/coverage/query.rs
+++ b/compiler/rustc_mir/src/transform/coverage/query.rs
@@ -1,6 +1,8 @@
+use super::*;
+
 use rustc_middle::mir::coverage::*;
 use rustc_middle::mir::visit::Visitor;
-use rustc_middle::mir::{Coverage, CoverageInfo, Location};
+use rustc_middle::mir::{self, Coverage, CoverageInfo, Location};
 use rustc_middle::ty::query::Providers;
 use rustc_middle::ty::TyCtxt;
 use rustc_span::def_id::DefId;
@@ -9,6 +11,8 @@ use rustc_span::def_id::DefId;
 /// counter) and `FunctionCoverage::new()` (to extract the coverage map metadata from the MIR).
 pub(crate) fn provide(providers: &mut Providers) {
     providers.coverageinfo = |tcx, def_id| coverageinfo_from_mir(tcx, def_id);
+    providers.covered_file_name = |tcx, def_id| covered_file_name(tcx, def_id);
+    providers.covered_code_regions = |tcx, def_id| covered_code_regions(tcx, def_id);
 }
 
 /// The `num_counters` argument to `llvm.instrprof.increment` is the max counter_id + 1, or in
@@ -123,3 +127,34 @@ fn coverageinfo_from_mir<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> CoverageInfo
 
     coverage_visitor.info
 }
+
+fn covered_file_name<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> Option<Symbol> {
+    let mir_body = tcx.optimized_mir(def_id);
+    for bb_data in mir_body.basic_blocks().iter() {
+        for statement in bb_data.statements.iter() {
+            if let StatementKind::Coverage(box ref coverage) = statement.kind {
+                if let Some(code_region) = coverage.code_region.as_ref() {
+                    return Some(code_region.file_name);
+                }
+            }
+        }
+    }
+    None
+}
+
+fn covered_code_regions<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> Vec<&'tcx CodeRegion> {
+    let mir_body: &'tcx mir::Body<'tcx> = tcx.optimized_mir(def_id);
+    mir_body
+        .basic_blocks()
+        .iter()
+        .map(|data| {
+            data.statements.iter().filter_map(|statement| match statement.kind {
+                StatementKind::Coverage(box ref coverage) => {
+                    coverage.code_region.as_ref() // may be None
+                }
+                _ => None,
+            })
+        })
+        .flatten()
+        .collect()
+}
diff --git a/compiler/rustc_mir/src/transform/coverage/spans.rs b/compiler/rustc_mir/src/transform/coverage/spans.rs
index 95c49922262f6..38d66a442add4 100644
--- a/compiler/rustc_mir/src/transform/coverage/spans.rs
+++ b/compiler/rustc_mir/src/transform/coverage/spans.rs
@@ -1,10 +1,9 @@
 use super::debug::term_type;
-use super::graph::{BasicCoverageBlock, BasicCoverageBlockData, CoverageGraph};
+use super::graph::{BasicCoverageBlock, BasicCoverageBlockData, CoverageGraph, START_BCB};
 
 use crate::util::spanview::source_range_no_file;
 
 use rustc_data_structures::graph::WithNumNodes;
-use rustc_index::bit_set::BitSet;
 use rustc_middle::mir::{
     self, AggregateKind, BasicBlock, FakeReadCause, Rvalue, Statement, StatementKind, Terminator,
     TerminatorKind,
@@ -74,6 +73,10 @@ pub(super) struct CoverageSpan {
 }
 
 impl CoverageSpan {
+    pub fn for_fn_sig(fn_sig_span: Span) -> Self {
+        Self { span: fn_sig_span, bcb: START_BCB, coverage_statements: vec![], is_closure: false }
+    }
+
     pub fn for_statement(
         statement: &Statement<'tcx>,
         span: Span,
@@ -82,10 +85,10 @@ impl CoverageSpan {
         stmt_index: usize,
     ) -> Self {
         let is_closure = match statement.kind {
-            StatementKind::Assign(box (
-                _,
-                Rvalue::Aggregate(box AggregateKind::Closure(_, _), _),
-            )) => true,
+            StatementKind::Assign(box (_, Rvalue::Aggregate(box ref kind, _))) => match kind {
+                AggregateKind::Closure(_, _) | AggregateKind::Generator(_, _, _) => true,
+                _ => false,
+            },
             _ => false,
         };
 
@@ -109,9 +112,6 @@ impl CoverageSpan {
     pub fn merge_from(&mut self, mut other: CoverageSpan) {
         debug_assert!(self.is_mergeable(&other));
         self.span = self.span.to(other.span);
-        if other.is_closure {
-            self.is_closure = true;
-        }
         self.coverage_statements.append(&mut other.coverage_statements);
     }
 
@@ -171,6 +171,9 @@ pub struct CoverageSpans<'a, 'tcx> {
     /// The MIR, used to look up `BasicBlockData`.
     mir_body: &'a mir::Body<'tcx>,
 
+    /// A `Span` covering the signature of function for the MIR.
+    fn_sig_span: Span,
+
     /// A `Span` covering the function body of the MIR (typically from left curly brace to right
     /// curly brace).
     body_span: Span,
@@ -216,11 +219,13 @@ pub struct CoverageSpans<'a, 'tcx> {
 impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
     pub(super) fn generate_coverage_spans(
         mir_body: &'a mir::Body<'tcx>,
+        fn_sig_span: Span,
         body_span: Span,
         basic_coverage_blocks: &'a CoverageGraph,
     ) -> Vec<CoverageSpan> {
         let mut coverage_spans = CoverageSpans {
             mir_body,
+            fn_sig_span,
             body_span,
             basic_coverage_blocks,
             sorted_spans_iter: None,
@@ -277,6 +282,8 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
             return initial_spans;
         }
 
+        initial_spans.push(CoverageSpan::for_fn_sig(self.fn_sig_span));
+
         initial_spans.sort_unstable_by(|a, b| {
             if a.span.lo() == b.span.lo() {
                 if a.span.hi() == b.span.hi() {
@@ -331,7 +338,7 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
                     prev={:?}",
                     self.prev()
                 );
-                self.discard_curr();
+                self.take_curr();
             } else if self.curr().is_closure {
                 self.carve_out_span_for_closure();
             } else if self.prev_original_span == self.curr().span {
@@ -345,28 +352,28 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
 
         debug!("    AT END, adding last prev={:?}", self.prev());
         let prev = self.take_prev();
-        let CoverageSpans {
-            mir_body, basic_coverage_blocks, pending_dups, mut refined_spans, ..
-        } = self;
+        let CoverageSpans { pending_dups, mut refined_spans, .. } = self;
         for dup in pending_dups {
             debug!("    ...adding at least one pending dup={:?}", dup);
             refined_spans.push(dup);
         }
-        refined_spans.push(prev);
-
-        // Remove `CoverageSpan`s with empty spans ONLY if the empty `CoverageSpan`s BCB also has at
-        // least one other non-empty `CoverageSpan`.
-        let mut has_coverage = BitSet::new_empty(basic_coverage_blocks.num_nodes());
-        for covspan in &refined_spans {
-            if !covspan.span.is_empty() {
-                has_coverage.insert(covspan.bcb);
-            }
+
+        // Async functions wrap a closure that implements the body to be executed. The enclosing
+        // function is initially called, posts the closure to the executor, and returns. To avoid
+        // showing the return from the enclosing function as a "covered" return from the closure,
+        // the enclosing function's `TerminatorKind::Return`s `CoverageSpan` is excluded. The
+        // closure's `Return` is the only one that will be counted. This provides adequate
+        // coverage, and more intuitive counts. (Avoids double-counting the closing brace of the
+        // function body.)
+        let body_ends_with_closure = if let Some(last_covspan) = refined_spans.last() {
+            last_covspan.is_closure && last_covspan.span.hi() == self.body_span.hi()
+        } else {
+            false
+        };
+
+        if !body_ends_with_closure {
+            refined_spans.push(prev);
         }
-        refined_spans.retain(|covspan| {
-            !(covspan.span.is_empty()
-                && is_goto(&basic_coverage_blocks[covspan.bcb].terminator(mir_body).kind)
-                && has_coverage.contains(covspan.bcb))
-        });
 
         // Remove `CoverageSpan`s derived from closures, originally added to ensure the coverage
         // regions for the current function leave room for the closure's own coverage regions
@@ -491,8 +498,8 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
 
     /// If called, then the next call to `next_coverage_span()` will *not* update `prev` with the
     /// `curr` coverage span.
-    fn discard_curr(&mut self) {
-        self.some_curr = None;
+    fn take_curr(&mut self) -> CoverageSpan {
+        self.some_curr.take().unwrap_or_else(|| bug!("invalid attempt to unwrap a None some_curr"))
     }
 
     /// Returns true if the curr span should be skipped because prev has already advanced beyond the
@@ -508,11 +515,11 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
         self.prev().span.hi() <= self.curr().span.lo()
     }
 
-    /// If `prev`s span extends left of the closure (`curr`), carve out the closure's
-    /// span from `prev`'s span. (The closure's coverage counters will be injected when
-    /// processing the closure's own MIR.) Add the portion of the span to the left of the
-    /// closure; and if the span extends to the right of the closure, update `prev` to
-    /// that portion of the span. For any `pending_dups`, repeat the same process.
+    /// If `prev`s span extends left of the closure (`curr`), carve out the closure's span from
+    /// `prev`'s span. (The closure's coverage counters will be injected when processing the
+    /// closure's own MIR.) Add the portion of the span to the left of the closure; and if the span
+    /// extends to the right of the closure, update `prev` to that portion of the span. For any
+    /// `pending_dups`, repeat the same process.
     fn carve_out_span_for_closure(&mut self) {
         let curr_span = self.curr().span;
         let left_cutoff = curr_span.lo();
@@ -541,7 +548,8 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
                 dup.span = dup.span.with_lo(right_cutoff);
             }
             self.pending_dups.append(&mut pending_dups);
-            self.discard_curr(); // since self.prev() was already updated
+            let closure_covspan = self.take_curr();
+            self.refined_spans.push(closure_covspan); // since self.prev() was already updated
         } else {
             pending_dups.clear();
         }
@@ -705,30 +713,8 @@ pub(super) fn filtered_terminator_span(
         | TerminatorKind::DropAndReplace { .. }
         | TerminatorKind::SwitchInt { .. }
         // For `FalseEdge`, only the `real` branch is taken, so it is similar to a `Goto`.
-        // FIXME(richkadel): Note that `Goto` was moved to it's own match arm, for the reasons
-        // described below. Add tests to confirm whether or not similar cases also apply to
-        // `FalseEdge`.
-        | TerminatorKind::FalseEdge { .. } => None,
-
-        // FIXME(#78542): Can spans for `TerminatorKind::Goto` be improved to avoid special cases?
-        //
-        // `Goto`s are often the targets of `SwitchInt` branches, and certain important
-        // optimizations to replace some `Counter`s with `Expression`s require a separate
-        // `BasicCoverageBlock` for each branch, to support the `Counter`, when needed.
-        //
-        // Also, some test cases showed that `Goto` terminators, and to some degree their `Span`s,
-        // provided useful context for coverage, such as to count and show when `if` blocks
-        // _without_ `else` blocks execute the `false` case (counting when the body of the `if`
-        // was _not_ taken). In these cases, the `Goto` span is ultimately given a `CoverageSpan`
-        // of 1 character, at the end of it's original `Span`.
-        //
-        // However, in other cases, a visible `CoverageSpan` is not wanted, but the `Goto`
-        // block must still be counted (for example, to contribute its count to an `Expression`
-        // that reports the execution count for some other block). In these cases, the code region
-        // is set to `None`. (See `Instrumentor::is_code_region_redundant()`.)
-        TerminatorKind::Goto { .. } => {
-            Some(function_source_span(terminator.source_info.span.shrink_to_hi(), body_span))
-        }
+        | TerminatorKind::FalseEdge { .. }
+        | TerminatorKind::Goto { .. } => None,
 
         // Retain spans from all other terminators
         TerminatorKind::Resume
@@ -749,11 +735,3 @@ fn function_source_span(span: Span, body_span: Span) -> Span {
     let span = original_sp(span, body_span).with_ctxt(SyntaxContext::root());
     if body_span.contains(span) { span } else { body_span }
 }
-
-#[inline(always)]
-fn is_goto(term_kind: &TerminatorKind<'tcx>) -> bool {
-    match term_kind {
-        TerminatorKind::Goto { .. } => true,
-        _ => false,
-    }
-}
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs
index 66c709b408098..91ebc9a7c82e0 100644
--- a/compiler/rustc_session/src/options.rs
+++ b/compiler/rustc_session/src/options.rs
@@ -945,8 +945,7 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
         "instrument the generated code to support LLVM source-based code coverage \
         reports (note, the compiler build config must include `profiler = true`, \
         and is mutually exclusive with `-C profile-generate`/`-C profile-use`); \
-        implies `-C link-dead-code` (unless targeting MSVC, or explicitly disabled) \
-        and `-Z symbol-mangling-version=v0`; disables/overrides some Rust \
+        implies `-Z symbol-mangling-version=v0`; disables/overrides some Rust \
         optimizations (default: no)"),
     instrument_mcount: bool = (false, parse_bool, [TRACKED],
         "insert function instrument code for mcount-based tracing (default: no)"),
diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs
index 1352ab53cab4f..4e269f3172c20 100644
--- a/compiler/rustc_session/src/session.rs
+++ b/compiler/rustc_session/src/session.rs
@@ -1111,33 +1111,7 @@ impl Session {
     pub fn link_dead_code(&self) -> bool {
         match self.opts.cg.link_dead_code {
             Some(explicitly_set) => explicitly_set,
-            None => {
-                self.opts.debugging_opts.instrument_coverage && !self.target.is_like_msvc
-                // Issue #76038: (rustc `-Clink-dead-code` causes MSVC linker to produce invalid
-                // binaries when LLVM InstrProf counters are enabled). As described by this issue,
-                // the "link dead code" option produces incorrect binaries when compiled and linked
-                // under MSVC. The resulting Rust programs typically crash with a segmentation
-                // fault, or produce an empty "*.profraw" file (profiling counter results normally
-                // generated during program exit).
-                //
-                // If not targeting MSVC, `-Z instrument-coverage` implies `-C link-dead-code`, so
-                // unexecuted code is still counted as zero, rather than be optimized out. Note that
-                // instrumenting dead code can be explicitly disabled with:
-                //
-                //     `-Z instrument-coverage -C link-dead-code=no`.
-                //
-                // FIXME(richkadel): Investigate if `instrument-coverage` implementation can inject
-                // [zero counters](https://llvm.org/docs/CoverageMappingFormat.html#counter) in the
-                // coverage map when "dead code" is removed, rather than forcing `link-dead-code`.
-                // This may not be possible, however, if (as it seems to appear) the "dead code"
-                // that would otherwise not be linked is only identified as "dead" by the native
-                // linker. If that's the case, I believe it is too late for the Rust compiler to
-                // leverage any information it might be able to get from the linker regarding what
-                // code is dead, to be able to add those counters.
-                //
-                // On the other hand, if any Rust compiler passes are optimizing out dead code blocks
-                // we should inject "zero" counters for those code regions.
-            }
+            None => false,
         }
     }
 
diff --git a/src/doc/unstable-book/src/compiler-flags/source-based-code-coverage.md b/src/doc/unstable-book/src/compiler-flags/source-based-code-coverage.md
index 0eb425e42aad7..95c2450ae5733 100644
--- a/src/doc/unstable-book/src/compiler-flags/source-based-code-coverage.md
+++ b/src/doc/unstable-book/src/compiler-flags/source-based-code-coverage.md
@@ -1,6 +1,6 @@
 # `source-based-code-coverage`
 
-The tracking issue for this feature is: [#79121](https://github.com/rust-lang/rust/issues/79121).
+The tracking issue for this feature is: [#79121].
 
 ------------------------
 
@@ -8,7 +8,7 @@ The tracking issue for this feature is: [#79121](https://github.com/rust-lang/ru
 
 The Rust compiler includes two code coverage implementations:
 
-* A GCC-compatible, gcov-based coverage implementation, enabled with [`-Zprofile`](profile.md), which operates on DebugInfo.
+* A GCC-compatible, gcov-based coverage implementation, enabled with [`-Zprofile`], which operates on DebugInfo.
 * A source-based code coverage implementation, enabled with `-Zinstrument-coverage`, which uses LLVM's native coverage instrumentation to generate very precise coverage data.
 
 This document describes how to enable and use the LLVM instrumentation-based coverage, via the `-Zinstrument-coverage` compiler flag.
@@ -18,7 +18,7 @@ This document describes how to enable and use the LLVM instrumentation-based cov
 When `-Zinstrument-coverage` is enabled, the Rust compiler enhances rust-based libraries and binaries by:
 
 * Automatically injecting calls to an LLVM intrinsic ([`llvm.instrprof.increment`]), at functions and branches in compiled code, to increment counters when conditional sections of code are executed.
-* Embedding additional information in the data section of each library and binary (using the [LLVM Code Coverage Mapping Format]), to define the code regions (start and end positions in the source code) being counted.
+* Embedding additional information in the data section of each library and binary (using the [LLVM Code Coverage Mapping Format] _Version 4_, supported _only_ in LLVM 11 and up), to define the code regions (start and end positions in the source code) being counted.
 
 When running a coverage-instrumented program, the counter values are written to a `profraw` file at program termination. LLVM bundles tools that read the counter results, combine those results with the coverage map (embedded in the program binary), and generate coverage reports in multiple formats.
 
@@ -28,7 +28,7 @@ Rust's source-based code coverage requires the Rust "profiler runtime". Without
 
 The Rust `nightly` distribution channel should include the profiler runtime, by default.
 
-*IMPORTANT:* If you are building the Rust compiler from the source distribution, the profiler runtime is *not* enabled in the default `config.toml.example`, and may not be enabled in your `config.toml`. Edit the `config.toml` file, and find the `profiler` feature entry. Uncomment it and set it to `true`:
+*IMPORTANT:* If you are building the Rust compiler from the source distribution, the profiler runtime is *not* enabled in the default `config.toml.example`. Edit your `config.toml` file and ensure the `profiler` feature is set it to `true`:
 
 ```toml
 # Build the profiler runtime (required when compiling with options that depend
@@ -36,13 +36,13 @@ The Rust `nightly` distribution channel should include the profiler runtime, by
 profiler = true
 ```
 
-Then rebuild the Rust compiler (see [rustc-dev-guide-how-to-build-and-run]).
+If changed, rebuild the Rust compiler (see [rustc-dev-guide-how-to-build-and-run]).
 
 ### Building the demangler
 
 LLVM coverage reporting tools generate results that can include function names and other symbol references, and the raw coverage results report symbols using the compiler's "mangled" version of the symbol names, which can be difficult to interpret. To work around this issue, LLVM coverage tools also support a user-specified symbol name demangler.
 
-One option for a Rust demangler is [`rustfilt`](https://crates.io/crates/rustfilt), which can be installed with:
+One option for a Rust demangler is [`rustfilt`], which can be installed with:
 
 ```shell
 cargo install rustfilt
@@ -68,7 +68,7 @@ $ cargo clean
 $ RUSTFLAGS="-Zinstrument-coverage" cargo build
 ```
 
-If `cargo` is not configured to use your `profiler`-enabled version of `rustc`, set the path explicitly via the `RUSTC` environment variable. Here is another example, using a `stage1` build of `rustc` to compile an `example` binary (from the [`json5format`](https://crates.io/crates/json5format) crate):
+If `cargo` is not configured to use your `profiler`-enabled version of `rustc`, set the path explicitly via the `RUSTC` environment variable. Here is another example, using a `stage1` build of `rustc` to compile an `example` binary (from the [`json5format`] crate):
 
 ```shell
 $ RUSTC=$HOME/rust/build/x86_64-unknown-linux-gnu/stage1/bin/rustc \
@@ -108,19 +108,31 @@ If `LLVM_PROFILE_FILE` contains a path to a non-existent directory, the missing
 * `%Nm` - the instrumented binary’s signature: The runtime creates a pool of N raw profiles, used for on-line profile merging. The runtime takes care of selecting a raw profile from the pool, locking it, and updating it before the program exits. `N` must be between `1` and `9`, and defaults to `1` if omitted (with simply `%m`).
 * `%c` - Does not add anything to the filename, but enables a mode (on some platforms, including Darwin) in which profile counter updates are continuously synced to a file. This means that if the instrumented program crashes, or is killed by a signal, perfect coverage information can still be recovered.
 
-## Creating coverage reports
+## Installing LLVM coverage tools
+
+LLVM's supplies two tools—`llvm-profdata` and `llvm-cov`—that process coverage data and generate reports. There are several ways to find and/or install these tools, but note that the coverage mapping data generated by the Rust compiler requires LLVM version 11 or higher. (`llvm-cov --version` typically shows the tool's LLVM version number.):
+
+* The LLVM tools may be installed (or installable) directly to your OS (such as via `apt-get`, for Linux).
+* If you are building the Rust compiler from source, you can optionally use the bundled LLVM tools, built from source. Those tool binaries can typically be found in your build platform directory at something like: `rust/build/x86_64-unknown-linux-gnu/llvm/bin/llvm-*`.
+* You can install compatible versions of these tools via `rustup`.
+
+The `rustup` option is guaranteed to install a compatible version of the LLVM tools, but they can be hard to find. We recommend [`cargo-bintools`], which installs Rust-specific wrappers around these and other LLVM tools, so you can invoke them via `cargo` commands!
 
-LLVM's tools to process coverage data and coverage maps have some version dependencies. If you encounter a version mismatch, try updating your LLVM tools.
+```shell
+$ rustup component add llvm-tools-preview
+$ cargo install cargo-binutils
+$ cargo profdata -- --help  # note the additional "--" preceeding the tool-specific arguments
+```
 
-If you are building the Rust compiler from source, you can optionally use the bundled LLVM tools, built from source. Those tool binaries can typically be found in your build platform directory at something like: `rust/build/x86_64-unknown-linux-gnu/llvm/bin/llvm-*`. (Look for `llvm-profdata` and `llvm-cov`.)
+## Creating coverage reports
 
-Raw profiles have to be indexed before they can be used to generate coverage reports. This is done using [`llvm-profdata merge`] (which can combine multiple raw profiles and index them at the same time):
+Raw profiles have to be indexed before they can be used to generate coverage reports. This is done using [`llvm-profdata merge`] (or `cargo cov -- merge`), which can combine multiple raw profiles and index them at the same time:
 
 ```shell
 $ llvm-profdata merge -sparse formatjson5.profraw -o formatjson5.profdata
 ```
 
-Finally, the `.profdata` file is used, in combination with the coverage map (from the program binary) to generate coverage reports using [`llvm-cov report`]--for a coverage summaries--and [`llvm-cov show`]--to see detailed coverage of lines and regions (character ranges), overlaid on the original source code.
+Finally, the `.profdata` file is used, in combination with the coverage map (from the program binary) to generate coverage reports using [`llvm-cov report`] (or `cargo cov -- report`), for a coverage summaries; and [`llvm-cov show`] (or `cargo cov -- show`), to see detailed coverage of lines and regions (character ranges) overlaid on the original source code.
 
 These commands have several display and filtering options. For example:
 
@@ -154,14 +166,77 @@ There are four statistics tracked in a coverage summary:
 
 Of these four statistics, function coverage is usually the least granular while region coverage is the most granular. The project-wide totals for each statistic are listed in the summary.
 
+## Test coverage
+
+A typical use case for coverage analysis is test coverage. Rust's source-based coverage tools can both measure your tests' code coverage as percentage, and pinpoint functions and branches not tested.
+
+The following example (using the [`json5format`] crate, for demonstration purposes) show how to generate and analyze coverage results for all tests in a crate.
+
+Since `cargo test` both builds and runs the tests, we set both the additional `RUSTFLAGS`, to add the `-Zinstrument-coverage` flag, and `LLVM_PROFILE_FILE`, to set a custom filename for the raw profiling data generated during the test runs. Since there may be more than one test binary, apply `%m` in the filename pattern. This generates unique names for each test binary. (Otherwise, each executed test binary would overwrite the coverage results from the previous binary.)
+
+```shell
+$ RUSTFLAGS="-Zinstrument-coverage" \
+    LLVM_PROFILE_FILE="json5format-%m.profraw" \
+    cargo test --tests
+```
+
+Make note of the test binary file paths, displayed after the word "`Running`" in the test output:
+
+```text
+   ...
+   Compiling json5format v0.1.3 ($HOME/json5format)
+    Finished test [unoptimized + debuginfo] target(s) in 14.60s
+
+     Running target/debug/deps/json5format-fececd4653271682
+running 25 tests
+...
+test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
+
+     Running target/debug/deps/lib-30768f9c53506dc5
+running 31 tests
+...
+test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
+```
+
+You should have one ore more `.profraw` files now, one for each test binary. Run the `profdata` tool to merge them:
+
+```shell
+$ cargo profdata -- merge \
+    -sparse json5format-*.profraw -o json5format.profdata
+```
+
+Then run the `cov` tool, with the `profdata` file and all test binaries:
+
+```shell
+$ cargo cov -- report \
+    --use-color --ignore-filename-regex='/.cargo/registry' \
+    --instr-profile=json5format.profdata \
+    target/debug/deps/lib-30768f9c53506dc5 \
+    target/debug/deps/json5format-fececd4653271682
+$ cargo cov -- show \
+    --use-color --ignore-filename-regex='/.cargo/registry' \
+    --instr-profile=json5format.profdata \
+    target/debug/deps/lib-30768f9c53506dc5 \
+    target/debug/deps/json5format-fececd4653271682 \
+    --show-instantiations --show-line-counts-or-regions \
+    --Xdemangler=rustfilt | less -R
+```
+
+_Note the command line option `--ignore-filename-regex=/.cargo/registry`, which excludes the sources for dependencies from the coverage results._
+
 ## Other references
 
-Rust's implementation and workflow for source-based code coverage is based on the same library and tools used to implement [source-based code coverage in Clang](https://clang.llvm.org/docs/SourceBasedCodeCoverage.html). (This document is partially based on the Clang guide.)
+Rust's implementation and workflow for source-based code coverage is based on the same library and tools used to implement [source-based code coverage in Clang]. (This document is partially based on the Clang guide.)
 
-[#34701]: https://github.com/rust-lang/rust/issues/34701
+[#79121]: https://github.com/rust-lang/rust/issues/79121
+[`-Zprofile`]: profile.md
 [`llvm.instrprof.increment`]: https://llvm.org/docs/LangRef.html#llvm-instrprof-increment-intrinsic
 [LLVM Code Coverage Mapping Format]: https://llvm.org/docs/CoverageMappingFormat.html
 [rustc-dev-guide-how-to-build-and-run]: https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html
+[`rustfilt`]: https://crates.io/crates/rustfilt
+[`json5format`]: https://crates.io/crates/json5format
+[`cargo-bintools`]: https://crates.io/crates/cargo-bintools
 [`llvm-profdata merge`]: https://llvm.org/docs/CommandGuide/llvm-profdata.html#profdata-merge
 [`llvm-cov report`]: https://llvm.org/docs/CommandGuide/llvm-cov.html#llvm-cov-report
 [`llvm-cov show`]: https://llvm.org/docs/CommandGuide/llvm-cov.html#llvm-cov-show
+[source-based code coverage in Clang]: https://clang.llvm.org/docs/SourceBasedCodeCoverage.html
\ No newline at end of file
diff --git a/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff b/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff
index 80b7e7ecddab9..0d06c4960b363 100644
--- a/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff
@@ -15,7 +15,7 @@
       }
   
       bb1: {
-          _0 = const ();                   // scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
+          _0 = const ();                   // scope 0 at $DIR/control-flow-simplification.rs:14:6: 14:6
           StorageDead(_1);                 // scope 0 at $DIR/control-flow-simplification.rs:15:1: 15:2
           return;                          // scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
       }
diff --git a/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir b/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir
index 4898f9deb0cae..c2f75e5daeeb2 100644
--- a/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir
+++ b/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir
@@ -4,7 +4,7 @@ fn hello() -> () {
     let mut _0: ();                      // return place in scope 0 at $DIR/control-flow-simplification.rs:11:14: 11:14
 
     bb0: {
-        _0 = const ();                   // scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
+        _0 = const ();                   // scope 0 at $DIR/control-flow-simplification.rs:14:6: 14:6
         return;                          // scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
     }
 }
diff --git a/src/test/mir-opt/coverage_graphviz.bar.InstrumentCoverage.0.dot b/src/test/mir-opt/coverage_graphviz.bar.InstrumentCoverage.0.dot
index efc06bdea57a6..124f2d8b97a00 100644
--- a/src/test/mir-opt/coverage_graphviz.bar.InstrumentCoverage.0.dot
+++ b/src/test/mir-opt/coverage_graphviz.bar.InstrumentCoverage.0.dot
@@ -2,5 +2,5 @@ digraph Cov_0_4 {
     graph [fontname="Courier, monospace"];
     node [fontname="Courier, monospace"];
     edge [fontname="Courier, monospace"];
-    bcb0__Cov_0_4 [shape="none", label=<<table border="0" cellborder="1" cellspacing="0"><tr><td bgcolor="gray" align="center" colspan="1">bcb0</td></tr><tr><td align="left" balign="left"></td></tr><tr><td align="left" balign="left">Counter(bcb0) at 19:5-20:2<br/>    19:5-19:9: @0[0]: _0 = const true<br/>    20:2-20:2: @0.Return: return</td></tr><tr><td align="left" balign="left">bb0: Return</td></tr></table>>];
+    bcb0__Cov_0_4 [shape="none", label=<<table border="0" cellborder="1" cellspacing="0"><tr><td bgcolor="gray" align="center" colspan="1">bcb0</td></tr><tr><td align="left" balign="left"></td></tr><tr><td align="left" balign="left">Counter(bcb0) at 18:1-20:2<br/>    19:5-19:9: @0[0]: _0 = const true<br/>    20:2-20:2: @0.Return: return</td></tr><tr><td align="left" balign="left">bb0: Return</td></tr></table>>];
 }
diff --git a/src/test/mir-opt/coverage_graphviz.main.InstrumentCoverage.0.dot b/src/test/mir-opt/coverage_graphviz.main.InstrumentCoverage.0.dot
index 5ddd112fe62e6..d88193da4fb19 100644
--- a/src/test/mir-opt/coverage_graphviz.main.InstrumentCoverage.0.dot
+++ b/src/test/mir-opt/coverage_graphviz.main.InstrumentCoverage.0.dot
@@ -2,9 +2,9 @@ digraph Cov_0_3 {
     graph [fontname="Courier, monospace"];
     node [fontname="Courier, monospace"];
     edge [fontname="Courier, monospace"];
-    bcb2__Cov_0_3 [shape="none", label=<<table border="0" cellborder="1" cellspacing="0"><tr><td bgcolor="gray" align="center" colspan="1">bcb2</td></tr><tr><td align="left" balign="left">Expression(bcb0 - bcb1) at 14:6-14:6<br/>    14:6-14:6: @4.Goto: goto -&gt; bb0</td></tr><tr><td align="left" balign="left">bb4: Goto</td></tr></table>>];
+    bcb2__Cov_0_3 [shape="none", label=<<table border="0" cellborder="1" cellspacing="0"><tr><td bgcolor="gray" align="center" colspan="1">bcb2</td></tr><tr><td align="left" balign="left">Expression(bcb0 - bcb1) at 13:10-13:10<br/>    13:10-13:10: @4[0]: _1 = const ()</td></tr><tr><td align="left" balign="left">bb4: Goto</td></tr></table>>];
     bcb1__Cov_0_3 [shape="none", label=<<table border="0" cellborder="1" cellspacing="0"><tr><td bgcolor="gray" align="center" colspan="1">bcb1</td></tr><tr><td align="left" balign="left">Counter(bcb1) at 12:13-12:18<br/>    12:13-12:18: @5[0]: _0 = const ()<br/>Expression(bcb1 + 0) at 15:2-15:2<br/>    15:2-15:2: @5.Return: return</td></tr><tr><td align="left" balign="left">bb3: FalseEdge</td></tr><tr><td align="left" balign="left">bb5: Return</td></tr></table>>];
-    bcb0__Cov_0_3 [shape="none", label=<<table border="0" cellborder="1" cellspacing="0"><tr><td bgcolor="gray" align="center" colspan="1">bcb0</td></tr><tr><td align="left" balign="left"></td></tr><tr><td align="left" balign="left">Counter(bcb0) at 11:12-11:17<br/>    11:12-11:17: @1.Call: _2 = bar() -&gt; [return: bb2, unwind: bb6]<br/>    11:12-11:17: @2[0]: FakeRead(ForMatchedPlace, _2)</td></tr><tr><td align="left" balign="left">bb0: FalseUnwind<br/>bb1: Call</td></tr><tr><td align="left" balign="left">bb2: SwitchInt</td></tr></table>>];
+    bcb0__Cov_0_3 [shape="none", label=<<table border="0" cellborder="1" cellspacing="0"><tr><td bgcolor="gray" align="center" colspan="1">bcb0</td></tr><tr><td align="left" balign="left"></td></tr><tr><td align="left" balign="left">Counter(bcb0) at 9:1-11:17<br/>    11:12-11:17: @1.Call: _2 = bar() -&gt; [return: bb2, unwind: bb6]<br/>    11:12-11:17: @2[0]: FakeRead(ForMatchedPlace, _2)</td></tr><tr><td align="left" balign="left">bb0: FalseUnwind<br/>bb1: Call</td></tr><tr><td align="left" balign="left">bb2: SwitchInt</td></tr></table>>];
     bcb2__Cov_0_3 -> bcb0__Cov_0_3 [label=<>];
     bcb0__Cov_0_3 -> bcb2__Cov_0_3 [label=<false>];
     bcb0__Cov_0_3 -> bcb1__Cov_0_3 [label=<otherwise>];
diff --git a/src/test/mir-opt/inst_combine_deref.do_not_miscompile.InstCombine.diff b/src/test/mir-opt/inst_combine_deref.do_not_miscompile.InstCombine.diff
index dac9ec3b443d7..a8b523d06dfc7 100644
--- a/src/test/mir-opt/inst_combine_deref.do_not_miscompile.InstCombine.diff
+++ b/src/test/mir-opt/inst_combine_deref.do_not_miscompile.InstCombine.diff
@@ -57,7 +57,7 @@
       }
   
       bb1: {
-          _7 = const ();                   // scope 4 at $DIR/inst_combine_deref.rs:60:5: 60:23
+          _7 = const ();                   // scope 4 at $DIR/inst_combine_deref.rs:60:23: 60:23
           StorageDead(_8);                 // scope 4 at $DIR/inst_combine_deref.rs:60:22: 60:23
           StorageDead(_7);                 // scope 4 at $DIR/inst_combine_deref.rs:60:22: 60:23
           _0 = const ();                   // scope 0 at $DIR/inst_combine_deref.rs:54:24: 61:2
diff --git a/src/test/mir-opt/instrument_coverage.bar.InstrumentCoverage.diff b/src/test/mir-opt/instrument_coverage.bar.InstrumentCoverage.diff
index 5048359e5c654..112a698309276 100644
--- a/src/test/mir-opt/instrument_coverage.bar.InstrumentCoverage.diff
+++ b/src/test/mir-opt/instrument_coverage.bar.InstrumentCoverage.diff
@@ -6,7 +6,7 @@
   
       bb0: {
           _0 = const true;                 // scope 0 at /the/src/instrument_coverage.rs:20:5: 20:9
-+         Coverage::Counter(1) for /the/src/instrument_coverage.rs:20:5 - 21:2; // scope 0 at /the/src/instrument_coverage.rs:21:2: 21:2
++         Coverage::Counter(1) for /the/src/instrument_coverage.rs:19:1 - 21:2; // scope 0 at /the/src/instrument_coverage.rs:21:2: 21:2
           return;                          // scope 0 at /the/src/instrument_coverage.rs:21:2: 21:2
       }
   }
diff --git a/src/test/mir-opt/instrument_coverage.main.InstrumentCoverage.diff b/src/test/mir-opt/instrument_coverage.main.InstrumentCoverage.diff
index c67d0e2ffe656..83dee7efa6db4 100644
--- a/src/test/mir-opt/instrument_coverage.main.InstrumentCoverage.diff
+++ b/src/test/mir-opt/instrument_coverage.main.InstrumentCoverage.diff
@@ -21,7 +21,7 @@
   
       bb2: {
           FakeRead(ForMatchedPlace, _2);   // scope 0 at /the/src/instrument_coverage.rs:12:12: 12:17
-+         Coverage::Counter(1) for /the/src/instrument_coverage.rs:12:12 - 12:17; // scope 0 at /the/src/instrument_coverage.rs:12:9: 14:10
++         Coverage::Counter(1) for /the/src/instrument_coverage.rs:10:1 - 12:17; // scope 0 at /the/src/instrument_coverage.rs:12:9: 14:10
           switchInt(_2) -> [false: bb4, otherwise: bb3]; // scope 0 at /the/src/instrument_coverage.rs:12:9: 14:10
       }
   
@@ -30,9 +30,9 @@
       }
   
       bb4: {
-          _1 = const ();                   // scope 0 at /the/src/instrument_coverage.rs:12:9: 14:10
+          _1 = const ();                   // scope 0 at /the/src/instrument_coverage.rs:14:10: 14:10
           StorageDead(_2);                 // scope 0 at /the/src/instrument_coverage.rs:15:5: 15:6
-+         Coverage::Expression(4294967295) = 1 - 2 for /the/src/instrument_coverage.rs:15:6 - 15:7; // scope 0 at /the/src/instrument_coverage.rs:11:5: 15:6
++         Coverage::Expression(4294967295) = 1 - 2 for /the/src/instrument_coverage.rs:14:10 - 14:11; // scope 0 at /the/src/instrument_coverage.rs:11:5: 15:6
           goto -> bb0;                     // scope 0 at /the/src/instrument_coverage.rs:11:5: 15:6
       }
   
diff --git a/src/test/mir-opt/issue_38669.main.SimplifyCfg-initial.after.mir b/src/test/mir-opt/issue_38669.main.SimplifyCfg-initial.after.mir
index 0929ba9d8a266..30036e4034af6 100644
--- a/src/test/mir-opt/issue_38669.main.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/issue_38669.main.SimplifyCfg-initial.after.mir
@@ -35,7 +35,7 @@ fn main() -> () {
     }
 
     bb4: {
-        _3 = const ();                   // scope 1 at $DIR/issue-38669.rs:7:9: 9:10
+        _3 = const ();                   // scope 1 at $DIR/issue-38669.rs:9:10: 9:10
         StorageDead(_4);                 // scope 1 at $DIR/issue-38669.rs:9:9: 9:10
         StorageDead(_3);                 // scope 1 at $DIR/issue-38669.rs:9:9: 9:10
         _1 = const true;                 // scope 1 at $DIR/issue-38669.rs:10:9: 10:28
diff --git a/src/test/mir-opt/issue_41888.main.ElaborateDrops.after.mir b/src/test/mir-opt/issue_41888.main.ElaborateDrops.after.mir
index d7b4e073cea4c..453886f3effdf 100644
--- a/src/test/mir-opt/issue_41888.main.ElaborateDrops.after.mir
+++ b/src/test/mir-opt/issue_41888.main.ElaborateDrops.after.mir
@@ -37,7 +37,7 @@ fn main() -> () {
     }
 
     bb2: {
-        _0 = const ();                   // scope 1 at $DIR/issue-41888.rs:8:5: 14:6
+        _0 = const ();                   // scope 1 at $DIR/issue-41888.rs:14:6: 14:6
         goto -> bb8;                     // scope 1 at $DIR/issue-41888.rs:8:5: 14:6
     }
 
@@ -61,7 +61,7 @@ fn main() -> () {
     }
 
     bb6: {
-        _0 = const ();                   // scope 1 at $DIR/issue-41888.rs:10:9: 13:10
+        _0 = const ();                   // scope 1 at $DIR/issue-41888.rs:13:10: 13:10
         goto -> bb8;                     // scope 1 at $DIR/issue-41888.rs:10:9: 13:10
     }
 
diff --git a/src/test/mir-opt/loop_test.main.SimplifyCfg-promote-consts.after.mir b/src/test/mir-opt/loop_test.main.SimplifyCfg-promote-consts.after.mir
index 05def56e65eb5..56df50c089318 100644
--- a/src/test/mir-opt/loop_test.main.SimplifyCfg-promote-consts.after.mir
+++ b/src/test/mir-opt/loop_test.main.SimplifyCfg-promote-consts.after.mir
@@ -25,7 +25,7 @@ fn main() -> () {
     }
 
     bb2: {
-        _1 = const ();                   // scope 0 at $DIR/loop_test.rs:10:5: 12:6
+        _1 = const ();                   // scope 0 at $DIR/loop_test.rs:12:6: 12:6
         StorageDead(_2);                 // scope 0 at $DIR/loop_test.rs:12:5: 12:6
         StorageDead(_1);                 // scope 0 at $DIR/loop_test.rs:12:5: 12:6
         StorageLive(_4);                 // scope 0 at $DIR/loop_test.rs:13:5: 16:6
diff --git a/src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.32bit.diff b/src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.32bit.diff
index ba963e3fe920b..d0b1a96b9aef7 100644
--- a/src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.32bit.diff
+++ b/src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.32bit.diff
@@ -34,7 +34,7 @@
       }
   
       bb4: {
-          _0 = const ();                   // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
+          _0 = const ();                   // scope 0 at $DIR/matches_reduce_branches.rs:9:6: 9:6
           goto -> bb5;                     // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
       }
   
diff --git a/src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.64bit.diff b/src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.64bit.diff
index ba963e3fe920b..d0b1a96b9aef7 100644
--- a/src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.64bit.diff
+++ b/src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.64bit.diff
@@ -34,7 +34,7 @@
       }
   
       bb4: {
-          _0 = const ();                   // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
+          _0 = const ();                   // scope 0 at $DIR/matches_reduce_branches.rs:9:6: 9:6
           goto -> bb5;                     // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
       }
   
diff --git a/src/test/mir-opt/simplify_cfg.main.SimplifyCfg-early-opt.diff b/src/test/mir-opt/simplify_cfg.main.SimplifyCfg-early-opt.diff
index 62743057048fb..5588877aec950 100644
--- a/src/test/mir-opt/simplify_cfg.main.SimplifyCfg-early-opt.diff
+++ b/src/test/mir-opt/simplify_cfg.main.SimplifyCfg-early-opt.diff
@@ -33,7 +33,7 @@
 - 
 -     bb4: {
 +     bb2: {
-          _1 = const ();                   // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+          _1 = const ();                   // scope 0 at $DIR/simplify_cfg.rs:9:10: 9:10
           StorageDead(_2);                 // scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
           goto -> bb0;                     // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
       }
diff --git a/src/test/mir-opt/simplify_cfg.main.SimplifyCfg-initial.diff b/src/test/mir-opt/simplify_cfg.main.SimplifyCfg-initial.diff
index 9a6afc58c4e9d..e62935225d805 100644
--- a/src/test/mir-opt/simplify_cfg.main.SimplifyCfg-initial.diff
+++ b/src/test/mir-opt/simplify_cfg.main.SimplifyCfg-initial.diff
@@ -40,7 +40,7 @@
   
 -     bb5: {
 +     bb4: {
-          _1 = const ();                   // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+          _1 = const ();                   // scope 0 at $DIR/simplify_cfg.rs:9:10: 9:10
 -         goto -> bb9;                     // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
 +         StorageDead(_2);                 // scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
 +         goto -> bb0;                     // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
diff --git a/src/test/mir-opt/simplify_if.main.SimplifyBranches-after-const-prop.diff b/src/test/mir-opt/simplify_if.main.SimplifyBranches-after-const-prop.diff
index aeb319a4904bf..bf3caf505eda1 100644
--- a/src/test/mir-opt/simplify_if.main.SimplifyBranches-after-const-prop.diff
+++ b/src/test/mir-opt/simplify_if.main.SimplifyBranches-after-const-prop.diff
@@ -14,7 +14,7 @@
       }
   
       bb1: {
-          _0 = const ();                   // scope 0 at $DIR/simplify_if.rs:6:5: 8:6
+          _0 = const ();                   // scope 0 at $DIR/simplify_if.rs:8:6: 8:6
           goto -> bb4;                     // scope 0 at $DIR/simplify_if.rs:6:5: 8:6
       }
   
diff --git a/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff
index 45808962bb564..9f7507a5cadb2 100644
--- a/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff
@@ -30,7 +30,7 @@
       }
   
       bb1: {
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
+          _0 = const ();                   // scope 0 at $DIR/simplify-locals-fixedpoint.rs:8:6: 8:6
           goto -> bb7;                     // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
       }
   
@@ -51,7 +51,7 @@
       }
   
       bb4: {
-          _0 = const ();                   // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
+          _0 = const ();                   // scope 1 at $DIR/simplify-locals-fixedpoint.rs:7:10: 7:10
           goto -> bb6;                     // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
       }
   
diff --git a/src/test/mir-opt/unreachable.main.UnreachablePropagation.diff b/src/test/mir-opt/unreachable.main.UnreachablePropagation.diff
index 37ff5c6ee3bbd..6f44de1e4a4f5 100644
--- a/src/test/mir-opt/unreachable.main.UnreachablePropagation.diff
+++ b/src/test/mir-opt/unreachable.main.UnreachablePropagation.diff
@@ -32,7 +32,7 @@
       }
   
       bb2: {
-          _0 = const ();                   // scope 0 at $DIR/unreachable.rs:9:5: 19:6
+          _0 = const ();                   // scope 0 at $DIR/unreachable.rs:19:6: 19:6
           StorageDead(_1);                 // scope 0 at $DIR/unreachable.rs:20:1: 20:2
           return;                          // scope 0 at $DIR/unreachable.rs:20:2: 20:2
 -     }
diff --git a/src/test/mir-opt/unreachable_asm.main.UnreachablePropagation.diff b/src/test/mir-opt/unreachable_asm.main.UnreachablePropagation.diff
index 5caacf84ca657..9bca06a3e2b28 100644
--- a/src/test/mir-opt/unreachable_asm.main.UnreachablePropagation.diff
+++ b/src/test/mir-opt/unreachable_asm.main.UnreachablePropagation.diff
@@ -34,7 +34,7 @@
       }
   
       bb2: {
-          _0 = const ();                   // scope 0 at $DIR/unreachable_asm.rs:11:5: 23:6
+          _0 = const ();                   // scope 0 at $DIR/unreachable_asm.rs:23:6: 23:6
           StorageDead(_1);                 // scope 0 at $DIR/unreachable_asm.rs:24:1: 24:2
           return;                          // scope 0 at $DIR/unreachable_asm.rs:24:2: 24:2
       }
diff --git a/src/test/mir-opt/unreachable_asm_2.main.UnreachablePropagation.diff b/src/test/mir-opt/unreachable_asm_2.main.UnreachablePropagation.diff
index 07ed81b35f53d..cbc24eab0f568 100644
--- a/src/test/mir-opt/unreachable_asm_2.main.UnreachablePropagation.diff
+++ b/src/test/mir-opt/unreachable_asm_2.main.UnreachablePropagation.diff
@@ -37,7 +37,7 @@
       }
   
       bb2: {
-          _0 = const ();                   // scope 0 at $DIR/unreachable_asm_2.rs:11:5: 25:6
+          _0 = const ();                   // scope 0 at $DIR/unreachable_asm_2.rs:25:6: 25:6
           StorageDead(_1);                 // scope 0 at $DIR/unreachable_asm_2.rs:26:1: 26:2
           return;                          // scope 0 at $DIR/unreachable_asm_2.rs:26:2: 26:2
       }
diff --git a/src/test/mir-opt/unreachable_diverging.main.UnreachablePropagation.diff b/src/test/mir-opt/unreachable_diverging.main.UnreachablePropagation.diff
index c809483d8c2c4..fd8286f1c4f39 100644
--- a/src/test/mir-opt/unreachable_diverging.main.UnreachablePropagation.diff
+++ b/src/test/mir-opt/unreachable_diverging.main.UnreachablePropagation.diff
@@ -33,7 +33,7 @@
       }
   
       bb2: {
-          _0 = const ();                   // scope 1 at $DIR/unreachable_diverging.rs:14:5: 19:6
+          _0 = const ();                   // scope 1 at $DIR/unreachable_diverging.rs:19:6: 19:6
           StorageDead(_1);                 // scope 0 at $DIR/unreachable_diverging.rs:20:1: 20:2
           StorageDead(_2);                 // scope 0 at $DIR/unreachable_diverging.rs:20:1: 20:2
           return;                          // scope 0 at $DIR/unreachable_diverging.rs:20:2: 20:2
@@ -50,7 +50,7 @@
       }
   
       bb4: {
--         _5 = const ();                   // scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
+-         _5 = const ();                   // scope 2 at $DIR/unreachable_diverging.rs:17:10: 17:10
 -         goto -> bb6;                     // scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
 -     }
 - 
diff --git a/src/test/run-make-fulldeps/coverage-llvmir-deadcode/Makefile b/src/test/run-make-fulldeps/coverage-llvmir-deadcode/Makefile
deleted file mode 100644
index 1b3cd82bb0d1a..0000000000000
--- a/src/test/run-make-fulldeps/coverage-llvmir-deadcode/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-# needs-profiler-support
-# ignore-msvc
-
-# LINK_DEAD_CODE requires ignore-msvc due to Issue #76038
-LINK_DEAD_CODE=yes
-
--include ../coverage-llvmir/Makefile
-
-# ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and
-# `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`.
-# See ../coverage/coverage_tools.mk for more information.
diff --git a/src/test/run-make-fulldeps/coverage-llvmir/Makefile b/src/test/run-make-fulldeps/coverage-llvmir/Makefile
index bd6cd0ee49507..54fc3d168645f 100644
--- a/src/test/run-make-fulldeps/coverage-llvmir/Makefile
+++ b/src/test/run-make-fulldeps/coverage-llvmir/Makefile
@@ -1,9 +1,5 @@
 # needs-profiler-support
 
-# ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and
-# `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`.
-# See ../coverage/coverage_tools.mk for more information.
-
 -include ../coverage/coverage_tools.mk
 
 BASEDIR=../coverage-llvmir
@@ -20,11 +16,7 @@ else
 	COMDAT_IF_SUPPORTED=, comdat
 endif
 
-ifeq ($(LINK_DEAD_CODE),yes)
-	DEFINE_INTERNAL=define hidden
-else
-	DEFINE_INTERNAL=define internal
-endif
+DEFINE_INTERNAL=define internal
 
 ifdef IS_WINDOWS
 	LLVM_FILECHECK_OPTIONS=\
@@ -65,14 +57,8 @@ endif
 
 test_llvm_ir:
 	# Compile the test program with non-experimental coverage instrumentation, and generate LLVM IR
-	#
-	# Note: `-Clink-dead-code=no` disables the option, needed because the option is automatically
-	# enabled for some platforms, but not for Windows MSVC (due to Issue #76038). The state of this
-	# option affects the generated MIR and coverage, so it is enabled for tests to ensure the
-	# tests results are the same across platforms.
 	$(RUSTC) $(BASEDIR)/testprog.rs \
 			-Zinstrument-coverage \
-			-Clink-dead-code=$(LINK_DEAD_CODE) \
 			--emit=llvm-ir
 
 	cat "$(TMPDIR)"/testprog.ll | \
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/Makefile b/src/test/run-make-fulldeps/coverage-reports-deadcode/Makefile
deleted file mode 100644
index 0d40ffee764d4..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/Makefile
+++ /dev/null
@@ -1,15 +0,0 @@
-# needs-profiler-support
-# ignore-msvc
-# ignore-windows-gnu
-
-# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
-# properly. Since we only have GCC on the CI ignore the test for now.
-
-# LINK_DEAD_CODE requires ignore-msvc due to Issue #76038
-LINK_DEAD_CODE=yes
-
--include ../coverage-reports/Makefile
-
-# ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and
-# `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`.
-# See ../coverage/coverage_tools.mk for more information.
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.abort.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.abort.json
deleted file mode 100644
index 33cfc9f3ed72c..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.abort.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/abort.rs",
-          "summary": {
-            "functions": {
-              "count": 2,
-              "covered": 2,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 2,
-              "covered": 2,
-              "percent": 100
-            },
-            "lines": {
-              "count": 15,
-              "covered": 13,
-              "percent": 86.66666666666667
-            },
-            "regions": {
-              "count": 10,
-              "covered": 9,
-              "notcovered": 1,
-              "percent": 90
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 2,
-          "covered": 2,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 2,
-          "covered": 2,
-          "percent": 100
-        },
-        "lines": {
-          "count": 15,
-          "covered": 13,
-          "percent": 86.66666666666667
-        },
-        "regions": {
-          "count": 10,
-          "covered": 9,
-          "notcovered": 1,
-          "percent": 90
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.assert.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.assert.json
deleted file mode 100644
index aa2a0cbebe77e..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.assert.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/assert.rs",
-          "summary": {
-            "functions": {
-              "count": 2,
-              "covered": 2,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 2,
-              "covered": 2,
-              "percent": 100
-            },
-            "lines": {
-              "count": 13,
-              "covered": 10,
-              "percent": 76.92307692307693
-            },
-            "regions": {
-              "count": 14,
-              "covered": 12,
-              "notcovered": 2,
-              "percent": 85.71428571428571
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 2,
-          "covered": 2,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 2,
-          "covered": 2,
-          "percent": 100
-        },
-        "lines": {
-          "count": 13,
-          "covered": 10,
-          "percent": 76.92307692307693
-        },
-        "regions": {
-          "count": 14,
-          "covered": 12,
-          "notcovered": 2,
-          "percent": 85.71428571428571
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.async.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.async.json
deleted file mode 100644
index 004bedeea6280..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.async.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/async.rs",
-          "summary": {
-            "functions": {
-              "count": 9,
-              "covered": 9,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 9,
-              "covered": 9,
-              "percent": 100
-            },
-            "lines": {
-              "count": 31,
-              "covered": 30,
-              "percent": 96.7741935483871
-            },
-            "regions": {
-              "count": 21,
-              "covered": 18,
-              "notcovered": 3,
-              "percent": 85.71428571428571
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 9,
-          "covered": 9,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 9,
-          "covered": 9,
-          "percent": 100
-        },
-        "lines": {
-          "count": 31,
-          "covered": 30,
-          "percent": 96.7741935483871
-        },
-        "regions": {
-          "count": 21,
-          "covered": 18,
-          "notcovered": 3,
-          "percent": 85.71428571428571
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.closure.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.closure.json
deleted file mode 100644
index bff55300b3ca3..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.closure.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/closure.rs",
-          "summary": {
-            "functions": {
-              "count": 5,
-              "covered": 3,
-              "percent": 60
-            },
-            "instantiations": {
-              "count": 5,
-              "covered": 3,
-              "percent": 60
-            },
-            "lines": {
-              "count": 91,
-              "covered": 77,
-              "percent": 84.61538461538461
-            },
-            "regions": {
-              "count": 25,
-              "covered": 13,
-              "notcovered": 12,
-              "percent": 52
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 5,
-          "covered": 3,
-          "percent": 60
-        },
-        "instantiations": {
-          "count": 5,
-          "covered": 3,
-          "percent": 60
-        },
-        "lines": {
-          "count": 91,
-          "covered": 77,
-          "percent": 84.61538461538461
-        },
-        "regions": {
-          "count": 25,
-          "covered": 13,
-          "notcovered": 12,
-          "percent": 52
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.conditions.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.conditions.json
deleted file mode 100644
index d69ca80839a30..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.conditions.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/conditions.rs",
-          "summary": {
-            "functions": {
-              "count": 1,
-              "covered": 1,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 1,
-              "covered": 1,
-              "percent": 100
-            },
-            "lines": {
-              "count": 64,
-              "covered": 33,
-              "percent": 51.5625
-            },
-            "regions": {
-              "count": 88,
-              "covered": 25,
-              "notcovered": 63,
-              "percent": 28.40909090909091
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 1,
-          "covered": 1,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 1,
-          "covered": 1,
-          "percent": 100
-        },
-        "lines": {
-          "count": 64,
-          "covered": 33,
-          "percent": 51.5625
-        },
-        "regions": {
-          "count": 88,
-          "covered": 25,
-          "notcovered": 63,
-          "percent": 28.40909090909091
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.drop_trait.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.drop_trait.json
deleted file mode 100644
index bd2e2d56d4a55..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.drop_trait.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/drop_trait.rs",
-          "summary": {
-            "functions": {
-              "count": 2,
-              "covered": 2,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 2,
-              "covered": 2,
-              "percent": 100
-            },
-            "lines": {
-              "count": 10,
-              "covered": 10,
-              "percent": 100
-            },
-            "regions": {
-              "count": 5,
-              "covered": 5,
-              "notcovered": 0,
-              "percent": 100
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 2,
-          "covered": 2,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 2,
-          "covered": 2,
-          "percent": 100
-        },
-        "lines": {
-          "count": 10,
-          "covered": 10,
-          "percent": 100
-        },
-        "regions": {
-          "count": 5,
-          "covered": 5,
-          "notcovered": 0,
-          "percent": 100
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.generics.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.generics.json
deleted file mode 100644
index a50f4657e20aa..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.generics.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/generics.rs",
-          "summary": {
-            "functions": {
-              "count": 3,
-              "covered": 3,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 5,
-              "covered": 5,
-              "percent": 100
-            },
-            "lines": {
-              "count": 16,
-              "covered": 16,
-              "percent": 100
-            },
-            "regions": {
-              "count": 6,
-              "covered": 6,
-              "notcovered": 0,
-              "percent": 100
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 3,
-          "covered": 3,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 5,
-          "covered": 5,
-          "percent": 100
-        },
-        "lines": {
-          "count": 16,
-          "covered": 16,
-          "percent": 100
-        },
-        "regions": {
-          "count": 6,
-          "covered": 6,
-          "notcovered": 0,
-          "percent": 100
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.if.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.if.json
deleted file mode 100644
index 84dcc251f3f4b..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.if.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/if.rs",
-          "summary": {
-            "functions": {
-              "count": 1,
-              "covered": 1,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 1,
-              "covered": 1,
-              "percent": 100
-            },
-            "lines": {
-              "count": 19,
-              "covered": 19,
-              "percent": 100
-            },
-            "regions": {
-              "count": 5,
-              "covered": 4,
-              "notcovered": 1,
-              "percent": 80
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 1,
-          "covered": 1,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 1,
-          "covered": 1,
-          "percent": 100
-        },
-        "lines": {
-          "count": 19,
-          "covered": 19,
-          "percent": 100
-        },
-        "regions": {
-          "count": 5,
-          "covered": 4,
-          "notcovered": 1,
-          "percent": 80
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.if_else.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.if_else.json
deleted file mode 100644
index 36f81ceae19bf..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.if_else.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/if_else.rs",
-          "summary": {
-            "functions": {
-              "count": 1,
-              "covered": 1,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 1,
-              "covered": 1,
-              "percent": 100
-            },
-            "lines": {
-              "count": 28,
-              "covered": 19,
-              "percent": 67.85714285714286
-            },
-            "regions": {
-              "count": 7,
-              "covered": 5,
-              "notcovered": 2,
-              "percent": 71.42857142857143
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 1,
-          "covered": 1,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 1,
-          "covered": 1,
-          "percent": 100
-        },
-        "lines": {
-          "count": 28,
-          "covered": 19,
-          "percent": 67.85714285714286
-        },
-        "regions": {
-          "count": 7,
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-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.inner_items.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.inner_items.json
deleted file mode 100644
index 5dc82d2168ccd..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.inner_items.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/inner_items.rs",
-          "summary": {
-            "functions": {
-              "count": 4,
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-              "percent": 100
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-            "instantiations": {
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-      "totals": {
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-        "instantiations": {
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-          "covered": 4,
-          "percent": 100
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-        "lines": {
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-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.lazy_boolean.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.lazy_boolean.json
deleted file mode 100644
index 5a953b90b423f..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.lazy_boolean.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/lazy_boolean.rs",
-          "summary": {
-            "functions": {
-              "count": 1,
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-              "percent": 100
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-            "instantiations": {
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-      "totals": {
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-        "instantiations": {
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-        "lines": {
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-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.loops_branches.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.loops_branches.json
deleted file mode 100644
index 2dca41df9d24e..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.loops_branches.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/loops_branches.rs",
-          "summary": {
-            "functions": {
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-            "instantiations": {
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-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.nested_loops.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.nested_loops.json
deleted file mode 100644
index ce3c957e660c5..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.nested_loops.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/nested_loops.rs",
-          "summary": {
-            "functions": {
-              "count": 1,
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.overflow.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.overflow.json
deleted file mode 100644
index 176bfd7abebac..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.overflow.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
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-          "filename": "../coverage/overflow.rs",
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.panic_unwind.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.panic_unwind.json
deleted file mode 100644
index 5b13109dbe6b2..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.panic_unwind.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/panic_unwind.rs",
-          "summary": {
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.partial_eq.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.partial_eq.json
deleted file mode 100644
index bc0d0088041a8..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.partial_eq.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/partial_eq.rs",
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.simple_loop.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.simple_loop.json
deleted file mode 100644
index ada6bb062dd1e..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.simple_loop.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
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-          "filename": "../coverage/simple_loop.rs",
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.simple_match.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.simple_match.json
deleted file mode 100644
index 63d1ae74c5f5d..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.simple_match.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
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-          "filename": "../coverage/simple_match.rs",
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.tight_inf_loop.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.tight_inf_loop.json
deleted file mode 100644
index 872560384eb90..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.tight_inf_loop.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.try_error_result.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.try_error_result.json
deleted file mode 100644
index 78b935b15689a..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.try_error_result.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.while.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.while.json
deleted file mode 100644
index 339c65556682a..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.while.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
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diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.while_early_ret.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.while_early_ret.json
deleted file mode 100644
index ad43f5d992630..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.while_early_ret.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
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-          "count": 17,
-          "covered": 15,
-          "percent": 88.23529411764706
-        },
-        "regions": {
-          "count": 9,
-          "covered": 7,
-          "notcovered": 2,
-          "percent": 77.77777777777779
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.yield.json b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.yield.json
deleted file mode 100644
index 9f25bc971c558..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.yield.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "data": [
-    {
-      "files": [
-        {
-          "filename": "../coverage/yield.rs",
-          "summary": {
-            "functions": {
-              "count": 3,
-              "covered": 3,
-              "percent": 100
-            },
-            "instantiations": {
-              "count": 3,
-              "covered": 3,
-              "percent": 100
-            },
-            "lines": {
-              "count": 23,
-              "covered": 16,
-              "percent": 69.56521739130434
-            },
-            "regions": {
-              "count": 22,
-              "covered": 16,
-              "notcovered": 6,
-              "percent": 72.72727272727273
-            }
-          }
-        }
-      ],
-      "totals": {
-        "functions": {
-          "count": 3,
-          "covered": 3,
-          "percent": 100
-        },
-        "instantiations": {
-          "count": 3,
-          "covered": 3,
-          "percent": 100
-        },
-        "lines": {
-          "count": 23,
-          "covered": 16,
-          "percent": 69.56521739130434
-        },
-        "regions": {
-          "count": 22,
-          "covered": 16,
-          "notcovered": 6,
-          "percent": 72.72727272727273
-        }
-      }
-    }
-  ],
-  "type": "llvm.coverage.json.export",
-  "version": "2.0.1"
-}
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.abort.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.abort.txt
deleted file mode 100644
index 40c9c71a2aad4..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.abort.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-    1|       |#![feature(unwind_attributes)]
-    2|       |#![allow(unused_assignments)]
-    3|       |
-    4|       |#[unwind(aborts)]
-    5|       |fn might_abort(should_abort: bool) {
-    6|      4|    if should_abort {
-    7|      0|        println!("aborting...");
-    8|      0|        panic!("panics and aborts");
-    9|      4|    } else {
-   10|      4|        println!("Don't Panic");
-   11|      4|    }
-   12|      4|}
-   13|       |
-   14|       |fn main() -> Result<(),u8> {
-   15|      1|    let mut countdown = 10;
-   16|     11|    while countdown > 0 {
-   17|     10|        if countdown < 5 {
-   18|      4|            might_abort(false);
-   19|      6|        }
-   20|     10|        countdown -= 1;
-   21|       |    }
-   22|      1|    Ok(())
-   23|      1|}
-   24|       |
-   25|       |// Notes:
-   26|       |//   1. Compare this program and its coverage results to those of the similar tests
-   27|       |//      `panic_unwind.rs` and `try_error_result.rs`.
-   28|       |//   2. This test confirms the coverage generated when a program includes `TerminatorKind::Abort`.
-   29|       |//   3. The test does not invoke the abort. By executing to a successful completion, the coverage
-   30|       |//      results show where the program did and did not execute.
-   31|       |//   4. If the program actually aborted, the coverage counters would not be saved (which "works as
-   32|       |//      intended"). Coverage results would show no executed coverage regions.
-   33|       |//   6. If `should_abort` is `true` and the program aborts, the program exits with a `132` status
-   34|       |//      (on Linux at least).
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.assert.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.assert.txt
deleted file mode 100644
index a6efcbabd3522..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.assert.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |// expect-exit-status-101
-    3|       |
-    4|       |fn might_fail_assert(one_plus_one: u32) {
-    5|      4|    println!("does 1 + 1 = {}?", one_plus_one);
-    6|      4|    assert_eq!(1 + 1, one_plus_one, "the argument was wrong");
-                                                  ^1
-    7|      3|}
-    8|       |
-    9|       |fn main() -> Result<(),u8> {
-   10|      1|    let mut countdown = 10;
-   11|     10|    while countdown > 0 {
-   12|     10|        if countdown == 1 {
-   13|      0|            might_fail_assert(3);
-   14|     10|        } else if countdown < 5 {
-   15|      3|            might_fail_assert(2);
-   16|     15|        }
-   17|      9|        countdown -= 1;
-   18|       |    }
-   19|      0|    Ok(())
-   20|      0|}
-   21|       |
-   22|       |// Notes:
-   23|       |//   1. Compare this program and its coverage results to those of the very similar test
-   24|       |//      `panic_unwind.rs`, and similar tests `abort.rs` and `try_error_result.rs`.
-   25|       |//   2. This test confirms the coverage generated when a program passes or fails an `assert!()` or
-   26|       |//      related `assert_*!()` macro.
-   27|       |//   3. Notably, the `assert` macros *do not* generate `TerminatorKind::Assert`. The macros produce
-   28|       |//      conditional expressions, `TerminatorKind::SwitchInt` branches, and a possible call to
-   29|       |//      `begin_panic_fmt()` (that begins a panic unwind, if the assertion test fails).
-   30|       |//   4. `TerminatoKind::Assert` is, however, also present in the MIR generated for this test
-   31|       |//      (and in many other coverage tests). The `Assert` terminator is typically generated by the
-   32|       |//      Rust compiler to check for runtime failures, such as numeric overflows.
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.async.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.async.txt
deleted file mode 100644
index b5d99732102d0..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.async.txt
+++ /dev/null
@@ -1,66 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |
-    3|       |// require-rust-edition-2018
-    4|       |
-    5|      1|async fn f() -> u8 { 1 }
-    6|       |
-    7|       |async fn foo() -> [bool; 10] { [false; 10] }
-    8|       |
-    9|       |pub async fn g(x: u8) {
-   10|       |    match x {
-   11|       |        y if f().await == y => (),
-   12|       |        _ => (),
-   13|       |    }
-   14|      1|}
-   15|       |
-   16|       |// #78366: check the reference to the binding is recorded even if the binding is not autorefed
-   17|       |
-   18|       |async fn h(x: usize) {
-   19|       |    match x {
-   20|       |        y if foo().await[y] => (),
-   21|       |        _ => (),
-   22|       |    }
-   23|      1|}
-   24|       |
-   25|      1|async fn i(x: u8) {
-   26|      1|    match x {
-   27|      1|        y if f().await == y + 1 => (),
-                      ^0                         ^0
-   28|      1|        _ => (),
-   29|       |    }
-   30|      2|}
-   31|       |
-   32|      1|fn main() {
-   33|      1|    let _ = g(10);
-   34|      1|    let _ = h(9);
-   35|      1|    let mut future = Box::pin(i(8));
-   36|      1|    executor::block_on(future.as_mut());
-   37|      1|}
-   38|       |
-   39|       |mod executor {
-   40|       |    use core::{
-   41|       |        future::Future,
-   42|       |        pin::Pin,
-   43|       |        task::{Context, Poll, RawWaker, RawWakerVTable, Waker},
-   44|       |    };
-   45|       |
-   46|       |    pub fn block_on<F: Future>(mut future: F) -> F::Output {
-   47|      1|        let mut future = unsafe { Pin::new_unchecked(&mut future) };
-   48|      1|
-   49|      1|        static VTABLE: RawWakerVTable = RawWakerVTable::new(
-   50|      1|            |_| unimplemented!("clone"),
-   51|      1|            |_| unimplemented!("wake"),
-   52|      1|            |_| unimplemented!("wake_by_ref"),
-   53|      1|            |_| (),
-   54|      1|        );
-   55|      1|        let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &VTABLE)) };
-   56|      1|        let mut context = Context::from_waker(&waker);
-   57|       |
-   58|       |        loop {
-   59|      1|            if let Poll::Ready(val) = future.as_mut().poll(&mut context) {
-   60|      1|                break val;
-   61|       |            }
-   62|      0|        }
-   63|      1|    }
-   64|       |}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.closure.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.closure.txt
deleted file mode 100644
index aef26a62e25fb..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.closure.txt
+++ /dev/null
@@ -1,94 +0,0 @@
-    1|       |#![allow(unused_assignments, unused_variables)]
-    2|       |
-    3|      1|fn main() {
-    4|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|      1|    // dependent conditions.
-    7|      1|    let is_true = std::env::args().len() == 1;
-    8|      1|    let is_false = ! is_true;
-    9|      1|
-   10|      1|    let mut some_string = Some(String::from("the string content"));
-   11|      1|    println!(
-   12|      1|        "The string or alt: {}"
-   13|      1|        ,
-   14|      1|        some_string
-   15|      1|            .
-   16|      1|            unwrap_or_else
-   17|      1|        (
-   18|      1|            ||
-   19|       |            {
-   20|      0|                let mut countdown = 0;
-   21|      0|                if is_false {
-   22|      0|                    countdown = 10;
-   23|      0|                }
-   24|      0|                "alt string 1".to_owned()
-   25|      1|            }
-   26|      1|        )
-   27|      1|    );
-   28|      1|
-   29|      1|    some_string = Some(String::from("the string content"));
-   30|      1|    let
-   31|      1|        a
-   32|      1|    =
-   33|      1|        ||
-   34|       |    {
-   35|      0|        let mut countdown = 0;
-   36|      0|        if is_false {
-   37|      0|            countdown = 10;
-   38|      0|        }
-   39|      0|        "alt string 2".to_owned()
-   40|      1|    };
-   41|      1|    println!(
-   42|      1|        "The string or alt: {}"
-   43|      1|        ,
-   44|      1|        some_string
-   45|      1|            .
-   46|      1|            unwrap_or_else
-   47|      1|        (
-   48|      1|            a
-   49|      1|        )
-   50|      1|    );
-   51|      1|
-   52|      1|    some_string = None;
-   53|      1|    println!(
-   54|      1|        "The string or alt: {}"
-   55|      1|        ,
-   56|      1|        some_string
-   57|      1|            .
-   58|      1|            unwrap_or_else
-   59|      1|        (
-   60|      1|            ||
-   61|       |            {
-   62|      1|                let mut countdown = 0;
-   63|      1|                if is_false {
-   64|      0|                    countdown = 10;
-   65|      1|                }
-   66|      1|                "alt string 3".to_owned()
-   67|      1|            }
-   68|      1|        )
-   69|      1|    );
-   70|      1|
-   71|      1|    some_string = None;
-   72|      1|    let
-   73|      1|        a
-   74|      1|    =
-   75|      1|        ||
-   76|       |    {
-   77|      1|        let mut countdown = 0;
-   78|      1|        if is_false {
-   79|      0|            countdown = 10;
-   80|      1|        }
-   81|      1|        "alt string 4".to_owned()
-   82|      1|    };
-   83|      1|    println!(
-   84|      1|        "The string or alt: {}"
-   85|      1|        ,
-   86|      1|        some_string
-   87|      1|            .
-   88|      1|            unwrap_or_else
-   89|      1|        (
-   90|      1|            a
-   91|      1|        )
-   92|      1|    );
-   93|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.conditions.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.conditions.txt
deleted file mode 100644
index e55a574c056b8..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.conditions.txt
+++ /dev/null
@@ -1,106 +0,0 @@
-    1|       |#![allow(unused_assignments, unused_variables)]
-    2|       |
-    3|       |fn main() {
-    4|      1|    let mut countdown = 0;
-    5|      1|    if true {
-    6|      1|        countdown = 10;
-    7|      1|    }
-    8|       |
-    9|       |    const B: u32 = 100;
-   10|      1|    let x = if countdown > 7 {
-   11|      1|        countdown -= 4;
-   12|      1|        B
-   13|      0|    } else if countdown > 2 {
-   14|      0|        if countdown < 1 || countdown > 5 || countdown != 9 {
-   15|      0|            countdown = 0;
-   16|      0|        }
-   17|      0|        countdown -= 5;
-   18|      0|        countdown
-   19|       |    } else {
-   20|      0|        return;
-   21|       |    };
-   22|       |
-   23|      1|    let mut countdown = 0;
-   24|      1|    if true {
-   25|      1|        countdown = 10;
-   26|      1|    }
-   27|       |
-   28|      1|    if countdown > 7 {
-   29|      1|        countdown -= 4;
-   30|      1|    } else if countdown > 2 {
-                            ^0
-   31|      0|        if countdown < 1 || countdown > 5 || countdown != 9 {
-   32|      0|            countdown = 0;
-   33|      0|        }
-   34|      0|        countdown -= 5;
-   35|       |    } else {
-   36|      0|        return;
-   37|       |    }
-   38|       |
-   39|      1|    if true {
-   40|       |        // Demonstrate the difference with `TerminatorKind::Assert` as of 2020-11-15. Assert is no
-   41|       |        // longer treated as a `BasicCoverageBlock` terminator, which changed the coverage region,
-   42|       |        // for the executed `then` block above, to include the closing brace on line 30. That
-   43|       |        // changed the line count, but the coverage code region (for the `else if` condition) is
-   44|       |        // still valid.
-   45|       |        //
-   46|       |        // Note that `if` (then) and `else` blocks include the closing brace in their coverage
-   47|       |        // code regions when the last line in the block ends in a semicolon, because the Rust
-   48|       |        // compiler inserts a `StatementKind::Assign` to assign `const ()` to a `Place`, for the
-   49|       |        // empty value for the executed block. When the last line does not end in a semicolon
-   50|       |        // (that is, when the block actually results in a value), the additional `Assign` is not
-   51|       |        // generated, and the brace is not included.
-   52|      1|        let mut countdown = 0;
-   53|      1|        if true {
-   54|      1|            countdown = 10;
-   55|      1|        }
-   56|       |
-   57|      1|        if countdown > 7 {
-   58|      1|            countdown -= 4;
-   59|      1|        }
-   60|       |        // The closing brace of the `then` branch is now included in the coverage region, and shown
-   61|       |        // as "executed" (giving its line a count of 1 here). Since, in the original version above,
-   62|       |        // the closing brace shares the same line as the `else if` conditional expression (which is
-   63|       |        // not executed if the first `then` condition is true), only the condition's code region is
-   64|       |        // marked with a count of 0 now.
-   65|      0|        else if countdown > 2 {
-   66|      0|            if countdown < 1 || countdown > 5 || countdown != 9 {
-   67|      0|                countdown = 0;
-   68|      0|            }
-   69|      0|            countdown -= 5;
-   70|       |        } else {
-   71|      0|            return;
-   72|       |        }
-   73|      1|    }
-   74|       |
-   75|      1|    let mut countdown = 0;
-   76|      1|    if true {
-   77|      1|        countdown = 1;
-   78|      1|    }
-   79|       |
-   80|      1|    let z = if countdown > 7 {
-                      ^0
-   81|      0|        countdown -= 4;
-   82|      1|    } else if countdown > 2 {
-   83|      0|        if countdown < 1 || countdown > 5 || countdown != 9 {
-   84|      0|            countdown = 0;
-   85|      0|        }
-   86|      0|        countdown -= 5;
-   87|       |    } else {
-   88|      1|        let should_be_reachable = countdown;
-   89|      1|        println!("reached");
-   90|      1|        return;
-   91|       |    };
-   92|       |
-   93|      0|    let w = if countdown > 7 {
-   94|      0|        countdown -= 4;
-   95|      0|    } else if countdown > 2 {
-   96|      0|        if countdown < 1 || countdown > 5 || countdown != 9 {
-   97|      0|            countdown = 0;
-   98|      0|        }
-   99|      0|        countdown -= 5;
-  100|       |    } else {
-  101|      0|        return;
-  102|       |    };
-  103|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.drop_trait.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.drop_trait.txt
deleted file mode 100644
index 72aa020ca1691..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.drop_trait.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |// expect-exit-status-1
-    3|       |
-    4|       |struct Firework {
-    5|       |    strength: i32,
-    6|       |}
-    7|       |
-    8|       |impl Drop for Firework {
-    9|      2|    fn drop(&mut self) {
-   10|      2|        println!("BOOM times {}!!!", self.strength);
-   11|      2|    }
-   12|       |}
-   13|       |
-   14|       |fn main() -> Result<(),u8> {
-   15|      1|    let _firecracker = Firework { strength: 1 };
-   16|      1|
-   17|      1|    let _tnt = Firework { strength: 100 };
-   18|       |
-   19|      1|    if true {
-   20|      1|        println!("Exiting with error...");
-   21|      1|        return Err(1);
-   22|       |    }
-   23|       |
-   24|       |    let _ = Firework { strength: 1000 };
-   25|       |
-   26|       |    Ok(())
-   27|      1|}
-   28|       |
-   29|       |// Expected program output:
-   30|       |//   Exiting with error...
-   31|       |//   BOOM times 100!!!
-   32|       |//   BOOM times 1!!!
-   33|       |//   Error: 1
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.generics.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.generics.txt
deleted file mode 100644
index 86199d7476302..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.generics.txt
+++ /dev/null
@@ -1,67 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |// expect-exit-status-1
-    3|       |
-    4|       |struct Firework<T> where T: Copy + std::fmt::Display {
-    5|       |    strength: T,
-    6|       |}
-    7|       |
-    8|       |impl<T> Firework<T> where T: Copy + std::fmt::Display {
-    9|       |    #[inline(always)]
-   10|      3|    fn set_strength(&mut self, new_strength: T) {
-   11|      3|        self.strength = new_strength;
-   12|      3|    }
-  ------------------
-  | <generics::Firework<f64>>::set_strength:
-  |   10|      2|    fn set_strength(&mut self, new_strength: T) {
-  |   11|      2|        self.strength = new_strength;
-  |   12|      2|    }
-  ------------------
-  | <generics::Firework<i32>>::set_strength:
-  |   10|      1|    fn set_strength(&mut self, new_strength: T) {
-  |   11|      1|        self.strength = new_strength;
-  |   12|      1|    }
-  ------------------
-   13|       |}
-   14|       |
-   15|       |impl<T> Drop for Firework<T> where T: Copy + std::fmt::Display {
-   16|       |    #[inline(always)]
-   17|      2|    fn drop(&mut self) {
-   18|      2|        println!("BOOM times {}!!!", self.strength);
-   19|      2|    }
-  ------------------
-  | <generics::Firework<i32> as core::ops::drop::Drop>::drop:
-  |   17|      1|    fn drop(&mut self) {
-  |   18|      1|        println!("BOOM times {}!!!", self.strength);
-  |   19|      1|    }
-  ------------------
-  | <generics::Firework<f64> as core::ops::drop::Drop>::drop:
-  |   17|      1|    fn drop(&mut self) {
-  |   18|      1|        println!("BOOM times {}!!!", self.strength);
-  |   19|      1|    }
-  ------------------
-   20|       |}
-   21|       |
-   22|       |fn main() -> Result<(),u8> {
-   23|      1|    let mut firecracker = Firework { strength: 1 };
-   24|      1|    firecracker.set_strength(2);
-   25|      1|
-   26|      1|    let mut tnt = Firework { strength: 100.1 };
-   27|      1|    tnt.set_strength(200.1);
-   28|      1|    tnt.set_strength(300.3);
-   29|       |
-   30|      1|    if true {
-   31|      1|        println!("Exiting with error...");
-   32|      1|        return Err(1);
-   33|       |    }
-   34|       |
-   35|       |    let _ = Firework { strength: 1000 };
-   36|       |
-   37|       |    Ok(())
-   38|      1|}
-   39|       |
-   40|       |// Expected program output:
-   41|       |//   Exiting with error...
-   42|       |//   BOOM times 100!!!
-   43|       |//   BOOM times 1!!!
-   44|       |//   Error: 1
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.if.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.if.txt
deleted file mode 100644
index 85e6440ab3729..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.if.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-    1|       |#![allow(unused_assignments, unused_variables)]
-    2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
-    7|       |    let
-    8|      1|    is_true
-    9|      1|    =
-   10|      1|        std::env::args().len()
-   11|      1|    ==
-   12|      1|        1
-   13|      1|    ;
-   14|      1|    let
-   15|      1|        mut
-   16|      1|    countdown
-   17|      1|    =
-   18|      1|        0
-   19|       |    ;
-   20|       |    if
-   21|      1|        is_true
-   22|      1|    {
-   23|      1|        countdown
-   24|      1|        =
-   25|      1|            10
-   26|      1|        ;
-   27|      1|    }
-                   ^0
-   28|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.if_else.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.if_else.txt
deleted file mode 100644
index 5f899723e2554..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.if_else.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
-    7|      1|    let is_true = std::env::args().len() == 1;
-    8|      1|
-    9|      1|    let mut countdown = 0;
-   10|      1|    if
-   11|      1|        is_true
-   12|      1|    {
-   13|      1|        countdown
-   14|      1|        =
-   15|      1|            10
-   16|      1|        ;
-   17|      1|    }
-   18|       |    else // Note coverage region difference without semicolon
-   19|       |    {
-   20|      0|        countdown
-   21|      0|        =
-   22|      0|            100
-   23|       |    }
-   24|       |
-   25|       |    if
-   26|      1|        is_true
-   27|      1|    {
-   28|      1|        countdown
-   29|      1|        =
-   30|      1|            10
-   31|      1|        ;
-   32|      1|    }
-   33|       |    else
-   34|      0|    {
-   35|      0|        countdown
-   36|      0|        =
-   37|      0|            100
-   38|      0|        ;
-   39|      0|    }
-   40|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.inner_items.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.inner_items.txt
deleted file mode 100644
index efd9cd4f72d3e..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.inner_items.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-    1|       |#![allow(unused_assignments, unused_variables)]
-    2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
-    7|      1|    let is_true = std::env::args().len() == 1;
-    8|      1|
-    9|      1|    let mut countdown = 0;
-   10|      1|    if is_true {
-   11|      1|        countdown = 10;
-   12|      1|    }
-                   ^0
-   13|       |
-   14|       |    mod in_mod {
-   15|       |        const IN_MOD_CONST: u32 = 1000;
-   16|       |    }
-   17|       |
-   18|       |    fn in_func(a: u32) {
-   19|      3|        let b = 1;
-   20|      3|        let c = a + b;
-   21|      3|        println!("c = {}", c)
-   22|      3|    }
-   23|       |
-   24|       |    struct InStruct {
-   25|       |        in_struct_field: u32,
-   26|       |    }
-   27|       |
-   28|       |    const IN_CONST: u32 = 1234;
-   29|       |
-   30|       |    trait InTrait {
-   31|       |        fn trait_func(&mut self, incr: u32);
-   32|       |
-   33|      1|        fn default_trait_func(&mut self) {
-   34|      1|            in_func(IN_CONST);
-   35|      1|            self.trait_func(IN_CONST);
-   36|      1|        }
-   37|       |    }
-   38|       |
-   39|       |    impl InTrait for InStruct {
-   40|      1|        fn trait_func(&mut self, incr: u32) {
-   41|      1|            self.in_struct_field += incr;
-   42|      1|            in_func(self.in_struct_field);
-   43|      1|        }
-   44|       |    }
-   45|       |
-   46|       |    type InType = String;
-   47|       |
-   48|      1|    if is_true {
-   49|      1|        in_func(countdown);
-   50|      1|    }
-                   ^0
-   51|       |
-   52|      1|    let mut val = InStruct {
-   53|      1|        in_struct_field: 101,
-   54|      1|    };
-   55|      1|
-   56|      1|    val.default_trait_func();
-   57|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.lazy_boolean.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.lazy_boolean.txt
deleted file mode 100644
index 1b503033911c5..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.lazy_boolean.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-    1|       |#![allow(unused_assignments, unused_variables)]
-    2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
-    7|      1|    let is_true = std::env::args().len() == 1;
-    8|      1|
-    9|      1|    let (mut a, mut b, mut c) = (0, 0, 0);
-   10|      1|    if is_true {
-   11|      1|        a = 1;
-   12|      1|        b = 10;
-   13|      1|        c = 100;
-   14|      1|    }
-                   ^0
-   15|       |    let
-   16|      1|        somebool
-   17|       |        =
-   18|      1|            a < b
-   19|       |        ||
-   20|      1|            b < c
-                          ^0
-   21|       |    ;
-   22|       |    let
-   23|      1|        somebool
-   24|       |        =
-   25|      1|            b < a
-   26|       |        ||
-   27|      1|            b < c
-   28|       |    ;
-   29|      1|    let somebool = a < b && b < c;
-   30|      1|    let somebool = b < a && b < c;
-                                          ^0
-   31|       |
-   32|       |    if
-   33|      1|        !
-   34|      1|        is_true
-   35|      0|    {
-   36|      0|        a = 2
-   37|      0|        ;
-   38|      1|    }
-   39|       |
-   40|       |    if
-   41|      1|        is_true
-   42|      1|    {
-   43|      1|        b = 30
-   44|      1|        ;
-   45|      1|    }
-   46|       |    else
-   47|      0|    {
-   48|      0|        c = 400
-   49|      0|        ;
-   50|      0|    }
-   51|       |
-   52|      1|    if !is_true {
-   53|      0|        a = 2;
-   54|      1|    }
-   55|       |
-   56|      1|    if is_true {
-   57|      1|        b = 30;
-   58|      1|    } else {
-   59|      0|        c = 400;
-   60|      0|    }
-   61|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.loop_break_value.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.loop_break_value.txt
deleted file mode 100644
index b0d668c6d76da..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.loop_break_value.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |
-    3|      1|fn main() {
-    4|      1|    let result
-    5|      1|        =
-    6|      1|            loop
-    7|      1|        {
-    8|      1|            break
-    9|      1|            10
-   10|      1|            ;
-   11|      1|        }
-   12|      1|    ;
-   13|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.loops_branches.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.loops_branches.txt
deleted file mode 100644
index 3a969a6b89869..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.loops_branches.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |
-    3|       |// This test confirms an earlier problem was resolved, supporting the MIR graph generated by the
-    4|       |// structure of this `fmt` function.
-    5|       |
-    6|       |struct DebugTest;
-    7|       |
-    8|       |impl std::fmt::Debug for DebugTest {
-    9|       |    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-   10|      1|        if true {
-   11|      1|            if false {
-   12|       |                while true {
-   13|       |                }
-   14|      1|            }
-   15|      1|            write!(f, "error")?;
-                                            ^0
-   16|       |        } else {
-   17|      1|        }
-   18|      1|        Ok(())
-   19|      1|    }
-   20|       |}
-   21|       |
-   22|      1|fn main() {
-   23|      1|    let debug_test = DebugTest;
-   24|      1|    println!("{:?}", debug_test);
-   25|      1|}
-   26|       |
-   27|       |/*
-   28|       |
-   29|       |This is the error message generated, before the issue was fixed:
-   30|       |
-   31|       |error: internal compiler error: compiler/rustc_mir/src/transform/coverage/mod.rs:374:42:
-   32|       |Error processing: DefId(0:6 ~ bug_incomplete_cov_graph_traversal_simplified[317d]::{impl#0}::fmt):
-   33|       |Error { message: "`TraverseCoverageGraphWithLoops` missed some `BasicCoverageBlock`s:
-   34|       |[bcb6, bcb7, bcb9]" }
-   35|       |
-   36|       |*/
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.nested_loops.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.nested_loops.txt
deleted file mode 100644
index dd86a85815b3b..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.nested_loops.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-    1|       |fn main() {
-    2|      1|    let is_true = std::env::args().len() == 1;
-    3|      1|    let mut countdown = 10;
-    4|       |
-    5|      1|    'outer: while countdown > 0 {
-    6|      1|        let mut a = 100;
-    7|      1|        let mut b = 100;
-    8|      3|        for _ in 0..50 {
-    9|      3|            if a < 30 {
-   10|      0|                break;
-   11|       |            }
-   12|      3|            a -= 5;
-   13|      3|            b -= 5;
-   14|      3|            if b < 90 {
-   15|      1|                a -= 10;
-   16|      1|                if is_true {
-   17|      1|                    break 'outer;
-   18|      0|                } else {
-   19|      0|                    a -= 2;
-   20|      0|                }
-   21|      2|            }
-   22|      2|        }
-   23|      0|        countdown -= 1;
-   24|      0|    }
-   25|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.overflow.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.overflow.txt
deleted file mode 100644
index 322de1da25a26..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.overflow.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |// expect-exit-status-101
-    3|       |
-    4|       |fn might_overflow(to_add: u32) -> u32 {
-    5|      4|    if to_add > 5 {
-    6|      1|        println!("this will probably overflow");
-    7|      3|    }
-    8|      4|    let add_to = u32::MAX - 5;
-    9|      4|    println!("does {} + {} overflow?", add_to, to_add);
-   10|      4|    let result = to_add + add_to;
-   11|      4|    println!("continuing after overflow check");
-   12|      4|    result
-   13|      4|}
-   14|       |
-   15|       |fn main() -> Result<(),u8> {
-   16|      1|    let mut countdown = 10;
-   17|     10|    while countdown > 0 {
-   18|     10|        if countdown == 1 {
-   19|      0|            let result = might_overflow(10);
-   20|      0|            println!("Result: {}", result);
-   21|     10|        } else if countdown < 5 {
-   22|      3|            let result = might_overflow(1);
-   23|      3|            println!("Result: {}", result);
-   24|     15|        }
-   25|      9|        countdown -= 1;
-   26|       |    }
-   27|      0|    Ok(())
-   28|      0|}
-   29|       |
-   30|       |// Notes:
-   31|       |//   1. Compare this program and its coverage results to those of the very similar test `assert.rs`,
-   32|       |//      and similar tests `panic_unwind.rs`, abort.rs` and `try_error_result.rs`.
-   33|       |//   2. This test confirms the coverage generated when a program passes or fails a
-   34|       |//      compiler-generated `TerminatorKind::Assert` (based on an overflow check, in this case).
-   35|       |//   3. Similar to how the coverage instrumentation handles `TerminatorKind::Call`,
-   36|       |//      compiler-generated assertion failures are assumed to be a symptom of a program bug, not
-   37|       |//      expected behavior. To simplify the coverage graphs and keep instrumented programs as
-   38|       |//      small and fast as possible, `Assert` terminators are assumed to always succeed, and
-   39|       |//      therefore are considered "non-branching" terminators. So, an `Assert` terminator does not
-   40|       |//      get its own coverage counter.
-   41|       |//   4. After an unhandled panic or failed Assert, coverage results may not always be intuitive.
-   42|       |//      In this test, the final count for the statements after the `if` block in `might_overflow()`
-   43|       |//      is 4, even though the lines after `to_add + add_to` were executed only 3 times. Depending
-   44|       |//      on the MIR graph and the structure of the code, this count could have been 3 (which might
-   45|       |//      have been valid for the overflowed add `+`, but should have been 4 for the lines before
-   46|       |//      the overflow. The reason for this potential uncertainty is, a `CounterKind` is incremented
-   47|       |//      via StatementKind::Counter at the end of the block, but (as in the case in this test),
-   48|       |//      a CounterKind::Expression is always evaluated. In this case, the expression was based on
-   49|       |//      a `Counter` incremented as part of the evaluation of the `if` expression, which was
-   50|       |//      executed, and counted, 4 times, before reaching the overflow add.
-   51|       |
-   52|       |// If the program did not overflow, the coverage for `might_overflow()` would look like this:
-   53|       |//
-   54|       |//     4|       |fn might_overflow(to_add: u32) -> u32 {
-   55|       |//     5|      4|    if to_add > 5 {
-   56|       |//     6|      0|        println!("this will probably overflow");
-   57|       |//     7|      4|    }
-   58|       |//     8|      4|    let add_to = u32::MAX - 5;
-   59|       |//     9|      4|    println!("does {} + {} overflow?", add_to, to_add);
-   60|       |//    10|      4|    let result = to_add + add_to;
-   61|       |//    11|      4|    println!("continuing after overflow check");
-   62|       |//    12|      4|    result
-   63|       |//    13|      4|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.panic_unwind.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.panic_unwind.txt
deleted file mode 100644
index f5149c11b7be0..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.panic_unwind.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |// expect-exit-status-101
-    3|       |
-    4|       |fn might_panic(should_panic: bool) {
-    5|      4|    if should_panic {
-    6|      1|        println!("panicking...");
-    7|      1|        panic!("panics");
-    8|      3|    } else {
-    9|      3|        println!("Don't Panic");
-   10|      3|    }
-   11|      3|}
-   12|       |
-   13|       |fn main() -> Result<(),u8> {
-   14|      1|    let mut countdown = 10;
-   15|     10|    while countdown > 0 {
-   16|     10|        if countdown == 1 {
-   17|      0|            might_panic(true);
-   18|     10|        } else if countdown < 5 {
-   19|      3|            might_panic(false);
-   20|     15|        }
-   21|      9|        countdown -= 1;
-   22|       |    }
-   23|      0|    Ok(())
-   24|      0|}
-   25|       |
-   26|       |// Notes:
-   27|       |//   1. Compare this program and its coverage results to those of the similar tests `abort.rs` and
-   28|       |//      `try_error_result.rs`.
-   29|       |//   2. Since the `panic_unwind.rs` test is allowed to unwind, it is also allowed to execute the
-   30|       |//      normal program exit cleanup, including writing out the current values of the coverage
-   31|       |//      counters.
-   32|       |//   3. The coverage results show (interestingly) that the `panic!()` call did execute, but it does
-   33|       |//      not show coverage of the `if countdown == 1` branch in `main()` that calls
-   34|       |//      `might_panic(true)` (causing the call to `panic!()`).
-   35|       |//   4. The reason `main()`s `if countdown == 1` branch, calling `might_panic(true)`, appears
-   36|       |//      "uncovered" is, InstrumentCoverage (intentionally) treats `TerminatorKind::Call` terminators
-   37|       |//      as non-branching, because when a program executes normally, they always are. Errors handled
-   38|       |//      via the try `?` operator produce error handling branches that *are* treated as branches in
-   39|       |//      coverage results. By treating calls without try `?` operators as non-branching (assumed to
-   40|       |//      return normally and continue) the coverage graph can be simplified, producing smaller,
-   41|       |//      faster binaries, and cleaner coverage results.
-   42|       |//   5. The reason the coverage results actually show `panic!()` was called is most likely because
-   43|       |//      `panic!()` is a macro, not a simple function call, and there are other `Statement`s and/or
-   44|       |//      `Terminator`s that execute with a coverage counter before the panic and unwind occur.
-   45|       |//   6. By best practice, programs should not panic. By design, the coverage implementation will not
-   46|       |//      incur additional cost (in program size and execution time) to improve coverage results for
-   47|       |//      an event that is not supposted to happen.
-   48|       |//   7. FIXME(#78544): This issue describes a feature request for a proposed option to enable
-   49|       |//      more accurate coverage results for tests that intentionally panic.
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.partial_eq.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.partial_eq.txt
deleted file mode 100644
index d16a0a9c4c8c4..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.partial_eq.txt
+++ /dev/null
@@ -1,111 +0,0 @@
-    1|       |// This test confirms an earlier problem was resolved, supporting the MIR graph generated by the
-    2|       |// structure of this test.
-    3|       |
-    4|      2|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-                                                    ^1       ^1
-  ------------------
-  | Unexecuted instantiation: <partial_eq::Version as core::cmp::PartialOrd>::gt
-  ------------------
-  | Unexecuted instantiation: <partial_eq::Version as core::cmp::PartialOrd>::le
-  ------------------
-  | Unexecuted instantiation: <partial_eq::Version as core::cmp::PartialOrd>::ge
-  ------------------
-  | <partial_eq::Version as core::cmp::PartialOrd>::lt:
-  |    4|      1|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-  ------------------
-    5|       |pub struct Version {
-    6|       |    major: usize,
-    7|      1|    minor: usize,
-    8|       |    patch: usize,
-    9|       |}
-   10|       |
-   11|       |impl Version {
-   12|       |    pub fn new(major: usize, minor: usize, patch: usize) -> Self {
-   13|      2|        Self {
-   14|      2|            major,
-   15|      2|            minor,
-   16|      2|            patch,
-   17|      2|        }
-   18|      2|    }
-   19|       |}
-   20|       |
-   21|      1|fn main() {
-   22|      1|    let version_3_2_1 = Version::new(3, 2, 1);
-   23|      1|    let version_3_3_0 = Version::new(3, 3, 0);
-   24|      1|
-   25|      1|    println!("{:?} < {:?} = {}", version_3_2_1, version_3_3_0, version_3_2_1 < version_3_3_0);
-   26|      1|}
-   27|       |
-   28|       |/*
-   29|       |
-   30|       |This test verifies a bug was fixed that otherwise generated this error:
-   31|       |
-   32|       |thread 'rustc' panicked at 'No counters provided the source_hash for function:
-   33|       |    Instance {
-   34|       |        def: Item(WithOptConstParam {
-   35|       |            did: DefId(0:101 ~ autocfg[c44a]::version::{impl#2}::partial_cmp),
-   36|       |            const_param_did: None
-   37|       |        }),
-   38|       |        substs: []
-   39|       |    }'
-   40|       |The `PartialOrd` derived by `Version` happened to generate a MIR that generated coverage
-   41|       |without a code region associated with any `Counter`. Code regions were associated with at least
-   42|       |one expression, which is allowed, but the `function_source_hash` was only passed to the codegen
-   43|       |(coverage mapgen) phase from a `Counter`s code region. A new method was added to pass the
-   44|       |`function_source_hash` without a code region, if necessary.
-   45|       |
-   46|       |*/
-   47|       |
-   48|       |// FIXME(richkadel): It may be worth investigating why the coverage report for this test produces
-   49|       |// the following results:
-   50|       |
-   51|       |/*
-   52|       |
-   53|       |1. Why are their two counts below different characters (first and last) of `PartialOrd`, on line 17?
-   54|       |
-   55|       |2. Line 17 is counted twice, but the `::lt` instance shows a line count of 1? Is there a missing
-   56|       |   line count with a different instance? Or was it really only called once?
-   57|       |
-   58|       |3. Line 20 shows another line count (of 1) for a line within a `struct` declaration (on only one of
-   59|       |   its 3 fields). I doubt the specific field (`minor`) is relevant, but rather I suspect there's a
-   60|       |   problem computing the file position here, for some reason.
-   61|       |
-   62|       |<snip>
-   63|       |   16|       |
-   64|       |   17|      2|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-   65|       |                                                    ^1       ^1
-   66|       |------------------
-   67|       ||Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::gt
-   68|       |------------------
-   69|       ||Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::le
-   70|       |------------------
-   71|       ||Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::ge
-   72|       |------------------
-   73|       ||<partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::lt:
-   74|       ||  17|      1|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-   75|       |------------------
-   76|       |   18|       |pub struct Version {
-   77|       |   19|       |    major: usize,
-   78|       |   20|      1|    minor: usize,
-   79|       |   21|       |    patch: usize,
-   80|       |   22|       |}
-   81|       |   23|       |
-   82|       |   24|       |impl Version {
-   83|       |   25|       |    pub fn new(major: usize, minor: usize, patch: usize) -> Self {
-   84|       |   26|      2|        Version {
-   85|       |   27|      2|            major,
-   86|       |   28|      2|            minor,
-   87|       |   29|      2|            patch,
-   88|       |   30|      2|        }
-   89|       |   31|      2|    }
-   90|       |   32|       |}
-   91|       |   33|       |
-   92|       |   34|      1|fn main() {
-   93|       |   35|      1|    let version_3_2_1 = Version::new(3, 2, 1);
-   94|       |   36|      1|    let version_3_3_0 = Version::new(3, 3, 0);
-   95|       |   37|      1|
-   96|       |   38|      1|    println!("{:?} < {:?} = {}", version_3_2_1, version_3_3_0, version_3_2_1 < version
-   97|       |_3_3_0);
-   98|       |   39|      1|}
-   99|       |*/
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.simple_loop.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.simple_loop.txt
deleted file mode 100644
index 064930dd75c93..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.simple_loop.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
-    7|      1|    let is_true = std::env::args().len() == 1;
-    8|      1|
-    9|      1|    let mut countdown = 0;
-   10|       |
-   11|       |    if
-   12|      1|        is_true
-   13|      1|    {
-   14|      1|        countdown
-   15|      1|        =
-   16|      1|            10
-   17|      1|        ;
-   18|      1|    }
-                   ^0
-   19|       |
-   20|       |    loop
-   21|       |    {
-   22|       |        if
-   23|     11|            countdown
-   24|     11|                ==
-   25|     11|            0
-   26|       |        {
-   27|      1|            break
-   28|       |            ;
-   29|       |        }
-   30|     10|        countdown
-   31|     10|        -=
-   32|     10|        1
-   33|       |        ;
-   34|      1|    }
-   35|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.simple_match.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.simple_match.txt
deleted file mode 100644
index 1f7e71d3eb0e7..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.simple_match.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
-    7|      1|    let is_true = std::env::args().len() == 1;
-    8|      1|
-    9|      1|    let mut countdown = 1;
-   10|      1|    if is_true {
-   11|      1|        countdown = 0;
-   12|      1|    }
-                   ^0
-   13|       |
-   14|       |    for
-   15|      2|        _
-   16|       |    in
-   17|      3|        0..2
-   18|       |    {
-   19|       |        let z
-   20|       |        ;
-   21|       |        match
-   22|      2|            countdown
-   23|       |        {
-   24|      1|            x
-   25|       |            if
-   26|      2|                x
-   27|      2|                    <
-   28|      2|                1
-                               ^1
-   29|       |            =>
-   30|      1|            {
-   31|      1|                z = countdown
-   32|      1|                ;
-   33|      1|                let y = countdown
-   34|      1|                ;
-   35|      1|                countdown = 10
-   36|      1|                ;
-   37|      1|            }
-   38|       |            _
-   39|       |            =>
-   40|      1|            {}
-   41|       |        }
-   42|      3|    }
-   43|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.tight_inf_loop.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.tight_inf_loop.txt
deleted file mode 100644
index e02eac03a6b15..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.tight_inf_loop.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-    1|       |fn main() {
-    2|      1|    if false {
-    3|       |        loop {}
-    4|       |    }
-    5|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.try_error_result.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.try_error_result.txt
deleted file mode 100644
index 6b3a8c39c6338..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.try_error_result.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |// expect-exit-status-1
-    3|       |
-    4|       |fn call(return_error: bool) -> Result<(),()> {
-    5|      6|    if return_error {
-    6|      1|        Err(())
-    7|       |    } else {
-    8|      5|        Ok(())
-    9|       |    }
-   10|      6|}
-   11|       |
-   12|       |fn main() -> Result<(),()> {
-   13|      1|    let mut
-   14|      1|        countdown = 10
-   15|       |    ;
-   16|       |    for
-   17|      6|        _
-   18|       |    in
-   19|      6|        0..10
-   20|       |    {
-   21|      6|        countdown
-   22|      6|            -= 1
-   23|      6|        ;
-   24|      6|        if
-   25|      6|            countdown < 5
-   26|       |        {
-   27|      1|            call(/*return_error=*/ true)?;
-   28|      0|            call(/*return_error=*/ false)?;
-   29|       |        }
-   30|       |        else
-   31|       |        {
-   32|      5|            call(/*return_error=*/ false)?;
-                                                       ^0
-   33|      5|        }
-   34|      5|    }
-   35|      0|    Ok(())
-   36|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.while.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.while.txt
deleted file mode 100644
index 194325b6b9eca..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.while.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-    1|       |fn main() {
-    2|      1|    let num = 9;
-    3|      1|    while num >= 10 {
-    4|      0|    }
-    5|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.while_early_ret.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.while_early_ret.txt
deleted file mode 100644
index 26041136d2f4c..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.while_early_ret.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-    1|       |#![allow(unused_assignments)]
-    2|       |// expect-exit-status-1
-    3|       |
-    4|       |fn main() -> Result<(),u8> {
-    5|      1|    let mut countdown = 10;
-    6|       |    while
-    7|      7|        countdown
-    8|      7|            >
-    9|      7|        0
-   10|       |    {
-   11|       |        if
-   12|      7|            countdown
-   13|      7|                <
-   14|      7|            5
-   15|       |        {
-   16|       |            return
-   17|       |                if
-   18|      1|                    countdown
-   19|      1|                        >
-   20|      1|                    8
-   21|       |                {
-   22|      0|                    Ok(())
-   23|       |                }
-   24|       |                else
-   25|       |                {
-   26|      1|                    Err(1)
-   27|       |                }
-   28|       |                ;
-   29|       |        }
-   30|      6|        countdown
-   31|      6|            -=
-   32|      6|        1
-   33|       |        ;
-   34|       |    }
-   35|      0|    Ok(())
-   36|      1|}
-   37|       |
-   38|       |// ISSUE(77553): Originally, this test had `Err(1)` on line 22 (instead of `Ok(())`) and
-   39|       |// `std::process::exit(2)` on line 26 (instead of `Err(1)`); and this worked as expected on Linux
-   40|       |// and MacOS. But on Windows (MSVC, at least), the call to `std::process::exit()` exits the program
-   41|       |// without saving the InstrProf coverage counters. The use of `std::process:exit()` is not critical
-   42|       |// to the coverage test for early returns, but this is a limitation that should be fixed.
-   43|       |//
-   44|       |// FIXME(richkadel): Consider creating a new tests for coverage when calling `std::process::exit()`,
-   45|       |// move the `ISSUE` comment to that test, and implement a new test directive that supports skipping
-   46|       |// coverage tests when targeting specific platforms (at least skipping Windows, or MSVC if the
-   47|       |// problem exists on MSVC only).
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.yield.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.yield.txt
deleted file mode 100644
index 28813dd6d0b07..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage.yield.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-    1|       |#![feature(generators, generator_trait)]
-    2|       |#![allow(unused_assignments)]
-    3|       |
-    4|       |use std::ops::{Generator, GeneratorState};
-    5|       |use std::pin::Pin;
-    6|       |
-    7|       |fn main() {
-    8|      1|    let mut generator = || {
-    9|      1|        yield 1;
-   10|      1|        return "foo"
-   11|      1|    };
-   12|       |
-   13|      1|    match Pin::new(&mut generator).resume(()) {
-   14|      1|        GeneratorState::Yielded(1) => {}
-   15|      0|        _ => panic!("unexpected value from resume"),
-   16|       |    }
-   17|      1|    match Pin::new(&mut generator).resume(()) {
-   18|      1|        GeneratorState::Complete("foo") => {}
-   19|      0|        _ => panic!("unexpected value from resume"),
-   20|       |    }
-   21|       |
-   22|      1|    let mut generator = || {
-   23|      1|        yield 1;
-   24|      1|        yield 2;
-   25|      0|        yield 3;
-   26|      0|        return "foo"
-   27|      0|    };
-   28|       |
-   29|      1|    match Pin::new(&mut generator).resume(()) {
-   30|      1|        GeneratorState::Yielded(1) => {}
-   31|      0|        _ => panic!("unexpected value from resume"),
-   32|       |    }
-   33|      1|    match Pin::new(&mut generator).resume(()) {
-   34|      1|        GeneratorState::Yielded(2) => {}
-   35|      0|        _ => panic!("unexpected value from resume"),
-   36|       |    }
-   37|      1|}
-
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.abort.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.abort.txt
deleted file mode 100644
index e787e5e152d56..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.abort.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-Counter in file 0 15:9 -> 15:27, #1
-Counter in file 0 16:11 -> 16:24, (#1 + (#2 + #3))
-Counter in file 0 17:12 -> 17:25, ((#1 + (#2 + #3)) - #4)
-Counter in file 0 17:26 -> 19:10, #2
-Counter in file 0 19:10 -> 19:11, #3
-Counter in file 0 20:9 -> 20:23, (#2 + #3)
-Counter in file 0 22:5 -> 23:2, #4
-Counter in file 0 6:8 -> 6:20, #1
-Counter in file 0 7:9 -> 8:37, #2
-Counter in file 0 9:12 -> 12:2, (#1 - #2)
-Emitting segments for file: ../coverage/abort.rs
-Combined regions:
-  6:8 -> 6:20 (count=4)
-  7:9 -> 8:37 (count=0)
-  9:12 -> 12:2 (count=4)
-  15:9 -> 15:27 (count=1)
-  16:11 -> 16:24 (count=11)
-  17:12 -> 17:25 (count=10)
-  17:26 -> 19:10 (count=4)
-  19:10 -> 19:11 (count=6)
-  20:9 -> 20:23 (count=10)
-  22:5 -> 23:2 (count=1)
-Segment at 6:8 (count = 4), RegionEntry
-Segment at 6:20 (count = 0), Skipped
-Segment at 7:9 (count = 0), RegionEntry
-Segment at 8:37 (count = 0), Skipped
-Segment at 9:12 (count = 4), RegionEntry
-Segment at 12:2 (count = 0), Skipped
-Segment at 15:9 (count = 1), RegionEntry
-Segment at 15:27 (count = 0), Skipped
-Segment at 16:11 (count = 11), RegionEntry
-Segment at 16:24 (count = 0), Skipped
-Segment at 17:12 (count = 10), RegionEntry
-Segment at 17:25 (count = 0), Skipped
-Segment at 17:26 (count = 4), RegionEntry
-Segment at 19:10 (count = 6), RegionEntry
-Segment at 19:11 (count = 0), Skipped
-Segment at 20:9 (count = 10), RegionEntry
-Segment at 20:23 (count = 0), Skipped
-Segment at 22:5 (count = 1), RegionEntry
-Segment at 23:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.assert.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.assert.txt
deleted file mode 100644
index 81cb6c03da702..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.assert.txt
+++ /dev/null
@@ -1,54 +0,0 @@
-Counter in file 0 10:9 -> 10:27, #1
-Counter in file 0 11:11 -> 11:24, (#1 + (#2 + (#3 + #4)))
-Counter in file 0 12:12 -> 12:26, ((#1 + (#2 + (#3 + #4))) - #5)
-Counter in file 0 12:27 -> 14:10, #2
-Counter in file 0 14:19 -> 14:32, (((#1 + (#2 + (#3 + #4))) - #5) - #2)
-Counter in file 0 14:33 -> 16:10, #3
-Counter in file 0 16:10 -> 16:11, #4
-Counter in file 0 16:10 -> 16:11, (#3 + #4)
-Counter in file 0 17:9 -> 17:23, (#2 + (#3 + #4))
-Counter in file 0 19:5 -> 20:2, #5
-Counter in file 0 5:5 -> 5:48, #1
-Counter in file 0 6:16 -> 6:21, (#1 + 0)
-Counter in file 0 6:37 -> 6:61, #2
-Counter in file 0 7:1 -> 7:2, (#1 - #2)
-Emitting segments for file: ../coverage/assert.rs
-Combined regions:
-  5:5 -> 5:48 (count=4)
-  6:16 -> 6:21 (count=4)
-  6:37 -> 6:61 (count=1)
-  7:1 -> 7:2 (count=3)
-  10:9 -> 10:27 (count=1)
-  11:11 -> 11:24 (count=10)
-  12:12 -> 12:26 (count=10)
-  12:27 -> 14:10 (count=0)
-  14:19 -> 14:32 (count=10)
-  14:33 -> 16:10 (count=3)
-  16:10 -> 16:11 (count=15)
-  17:9 -> 17:23 (count=9)
-  19:5 -> 20:2 (count=0)
-Segment at 5:5 (count = 4), RegionEntry
-Segment at 5:48 (count = 0), Skipped
-Segment at 6:16 (count = 4), RegionEntry
-Segment at 6:21 (count = 0), Skipped
-Segment at 6:37 (count = 1), RegionEntry
-Segment at 6:61 (count = 0), Skipped
-Segment at 7:1 (count = 3), RegionEntry
-Segment at 7:2 (count = 0), Skipped
-Segment at 10:9 (count = 1), RegionEntry
-Segment at 10:27 (count = 0), Skipped
-Segment at 11:11 (count = 10), RegionEntry
-Segment at 11:24 (count = 0), Skipped
-Segment at 12:12 (count = 10), RegionEntry
-Segment at 12:26 (count = 0), Skipped
-Segment at 12:27 (count = 0), RegionEntry
-Segment at 14:10 (count = 0), Skipped
-Segment at 14:19 (count = 10), RegionEntry
-Segment at 14:32 (count = 0), Skipped
-Segment at 14:33 (count = 3), RegionEntry
-Segment at 16:10 (count = 15), RegionEntry
-Segment at 16:11 (count = 0), Skipped
-Segment at 17:9 (count = 9), RegionEntry
-Segment at 17:23 (count = 0), Skipped
-Segment at 19:5 (count = 0), RegionEntry
-Segment at 20:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.async.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.async.txt
deleted file mode 100644
index f1f02faba5365..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.async.txt
+++ /dev/null
@@ -1,85 +0,0 @@
-Counter in file 0 15:9 -> 15:75, #1
-Counter in file 0 15:9 -> 15:75, #1
-Counter in file 0 15:9 -> 15:75, #1
-Counter in file 0 47:13 -> 56:54, #1
-Counter in file 0 59:32 -> 59:35, ((#1 + #2) - #2)
-Counter in file 0 59:39 -> 59:73, (#1 + #2)
-Counter in file 0 60:23 -> 60:26, (((#1 + #2) - #2) + 0)
-Counter in file 0 62:10 -> 62:11, #2
-Counter in file 0 63:5 -> 63:6, (((#1 + #2) - #2) + 0)
-Counter in file 0 53:17 -> 53:19, #1
-Counter in file 0 7:44 -> 7:45, #1
-Counter in file 0 5:24 -> 5:25, #1
-Counter in file 0 5:22 -> 5:25, #1
-Counter in file 0 25:19 -> 26:12, #1
-Counter in file 0 27:9 -> 27:10, #3
-Counter in file 0 27:14 -> 27:17, (#1 + 0)
-Counter in file 0 27:27 -> 27:32, #2
-Counter in file 0 27:32 -> 27:33, (#2 - #3)
-Counter in file 0 27:36 -> 27:38, (#3 + 0)
-Counter in file 0 28:14 -> 28:16, #4
-Counter in file 0 30:1 -> 30:2, (#3 + #4)
-Counter in file 0 32:11 -> 37:2, #1
-Counter in file 0 30:1 -> 30:2, #1
-Counter in file 0 14:1 -> 14:2, #1
-Counter in file 0 23:1 -> 23:2, #1
-Emitting segments for file: ../coverage/async.rs
-Combined regions:
-  5:22 -> 5:25 (count=1)
-  5:24 -> 5:25 (count=1)
-  14:1 -> 14:2 (count=1)
-  23:1 -> 23:2 (count=1)
-  25:19 -> 26:12 (count=1)
-  27:9 -> 27:10 (count=0)
-  27:14 -> 27:17 (count=1)
-  27:27 -> 27:32 (count=1)
-  27:32 -> 27:33 (count=1)
-  27:36 -> 27:38 (count=0)
-  28:14 -> 28:16 (count=1)
-  30:1 -> 30:2 (count=2)
-  32:11 -> 37:2 (count=1)
-  47:13 -> 56:54 (count=1)
-  53:17 -> 53:19 (count=1)
-  59:32 -> 59:35 (count=1)
-  59:39 -> 59:73 (count=1)
-  60:23 -> 60:26 (count=1)
-  62:10 -> 62:11 (count=0)
-  63:5 -> 63:6 (count=1)
-Segment at 5:22 (count = 1), RegionEntry
-Segment at 5:24 (count = 1), RegionEntry
-Segment at 5:25 (count = 0), Skipped
-Segment at 14:1 (count = 1), RegionEntry
-Segment at 14:2 (count = 0), Skipped
-Segment at 23:1 (count = 1), RegionEntry
-Segment at 23:2 (count = 0), Skipped
-Segment at 25:19 (count = 1), RegionEntry
-Segment at 26:12 (count = 0), Skipped
-Segment at 27:9 (count = 0), RegionEntry
-Segment at 27:10 (count = 0), Skipped
-Segment at 27:14 (count = 1), RegionEntry
-Segment at 27:17 (count = 0), Skipped
-Segment at 27:27 (count = 1), RegionEntry
-Segment at 27:32 (count = 1), RegionEntry
-Segment at 27:33 (count = 0), Skipped
-Segment at 27:36 (count = 0), RegionEntry
-Segment at 27:38 (count = 0), Skipped
-Segment at 28:14 (count = 1), RegionEntry
-Segment at 28:16 (count = 0), Skipped
-Segment at 30:1 (count = 2), RegionEntry
-Segment at 30:2 (count = 0), Skipped
-Segment at 32:11 (count = 1), RegionEntry
-Segment at 37:2 (count = 0), Skipped
-Segment at 47:13 (count = 1), RegionEntry
-Segment at 53:17 (count = 1), RegionEntry
-Segment at 53:19 (count = 1)
-Segment at 56:54 (count = 0), Skipped
-Segment at 59:32 (count = 1), RegionEntry
-Segment at 59:35 (count = 0), Skipped
-Segment at 59:39 (count = 1), RegionEntry
-Segment at 59:73 (count = 0), Skipped
-Segment at 60:23 (count = 1), RegionEntry
-Segment at 60:26 (count = 0), Skipped
-Segment at 62:10 (count = 0), RegionEntry
-Segment at 62:11 (count = 0), Skipped
-Segment at 63:5 (count = 1), RegionEntry
-Segment at 63:6 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.closure.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.closure.txt
deleted file mode 100644
index fb797796e4e7d..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.closure.txt
+++ /dev/null
@@ -1,94 +0,0 @@
-Counter in file 0 20:21 -> 20:38, #1
-Counter in file 0 21:20 -> 21:28, (#1 + 0)
-Counter in file 0 21:29 -> 23:18, #2
-Counter in file 0 23:18 -> 23:19, (#1 - #2)
-Counter in file 0 24:17 -> 25:14, (#2 + (#1 - #2))
-Counter in file 0 3:11 -> 18:13, #1
-Counter in file 0 25:14 -> 33:9, (#1 + 0)
-Counter in file 0 40:6 -> 60:13, (#1 + 0)
-Counter in file 0 67:14 -> 75:9, (#1 + 0)
-Counter in file 0 82:6 -> 93:2, (#1 + 0)
-Counter in file 0 77:13 -> 77:30, #1
-Counter in file 0 78:12 -> 78:20, (#1 + 0)
-Counter in file 0 78:21 -> 80:10, #2
-Counter in file 0 80:10 -> 80:11, (#1 - #2)
-Counter in file 0 81:9 -> 82:6, (#2 + (#1 - #2))
-Counter in file 0 62:21 -> 62:38, #1
-Counter in file 0 63:20 -> 63:28, (#1 + 0)
-Counter in file 0 63:29 -> 65:18, #2
-Counter in file 0 65:18 -> 65:19, (#1 - #2)
-Counter in file 0 66:17 -> 67:14, (#2 + (#1 - #2))
-Counter in file 0 35:13 -> 35:30, #1
-Counter in file 0 36:12 -> 36:20, (#1 + 0)
-Counter in file 0 36:21 -> 38:10, #2
-Counter in file 0 38:10 -> 38:11, (#1 - #2)
-Counter in file 0 39:9 -> 40:6, (#2 + (#1 - #2))
-Emitting segments for file: ../coverage/closure.rs
-Combined regions:
-  3:11 -> 18:13 (count=1)
-  20:21 -> 20:38 (count=0)
-  21:20 -> 21:28 (count=0)
-  21:29 -> 23:18 (count=0)
-  23:18 -> 23:19 (count=0)
-  24:17 -> 25:14 (count=0)
-  25:14 -> 33:9 (count=1)
-  35:13 -> 35:30 (count=0)
-  36:12 -> 36:20 (count=0)
-  36:21 -> 38:10 (count=0)
-  38:10 -> 38:11 (count=0)
-  39:9 -> 40:6 (count=0)
-  40:6 -> 60:13 (count=1)
-  62:21 -> 62:38 (count=1)
-  63:20 -> 63:28 (count=1)
-  63:29 -> 65:18 (count=0)
-  65:18 -> 65:19 (count=1)
-  66:17 -> 67:14 (count=1)
-  67:14 -> 75:9 (count=1)
-  77:13 -> 77:30 (count=1)
-  78:12 -> 78:20 (count=1)
-  78:21 -> 80:10 (count=0)
-  80:10 -> 80:11 (count=1)
-  81:9 -> 82:6 (count=1)
-  82:6 -> 93:2 (count=1)
-Segment at 3:11 (count = 1), RegionEntry
-Segment at 18:13 (count = 0), Skipped
-Segment at 20:21 (count = 0), RegionEntry
-Segment at 20:38 (count = 0), Skipped
-Segment at 21:20 (count = 0), RegionEntry
-Segment at 21:28 (count = 0), Skipped
-Segment at 21:29 (count = 0), RegionEntry
-Segment at 23:18 (count = 0), RegionEntry
-Segment at 23:19 (count = 0), Skipped
-Segment at 24:17 (count = 0), RegionEntry
-Segment at 25:14 (count = 1), RegionEntry
-Segment at 33:9 (count = 0), Skipped
-Segment at 35:13 (count = 0), RegionEntry
-Segment at 35:30 (count = 0), Skipped
-Segment at 36:12 (count = 0), RegionEntry
-Segment at 36:20 (count = 0), Skipped
-Segment at 36:21 (count = 0), RegionEntry
-Segment at 38:10 (count = 0), RegionEntry
-Segment at 38:11 (count = 0), Skipped
-Segment at 39:9 (count = 0), RegionEntry
-Segment at 40:6 (count = 1), RegionEntry
-Segment at 60:13 (count = 0), Skipped
-Segment at 62:21 (count = 1), RegionEntry
-Segment at 62:38 (count = 0), Skipped
-Segment at 63:20 (count = 1), RegionEntry
-Segment at 63:28 (count = 0), Skipped
-Segment at 63:29 (count = 0), RegionEntry
-Segment at 65:18 (count = 1), RegionEntry
-Segment at 65:19 (count = 0), Skipped
-Segment at 66:17 (count = 1), RegionEntry
-Segment at 67:14 (count = 1), RegionEntry
-Segment at 75:9 (count = 0), Skipped
-Segment at 77:13 (count = 1), RegionEntry
-Segment at 77:30 (count = 0), Skipped
-Segment at 78:12 (count = 1), RegionEntry
-Segment at 78:20 (count = 0), Skipped
-Segment at 78:21 (count = 0), RegionEntry
-Segment at 80:10 (count = 1), RegionEntry
-Segment at 80:11 (count = 0), Skipped
-Segment at 81:9 (count = 1), RegionEntry
-Segment at 82:6 (count = 1), RegionEntry
-Segment at 93:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.conditions.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.conditions.txt
deleted file mode 100644
index a4c1a9c0f121a..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.conditions.txt
+++ /dev/null
@@ -1,304 +0,0 @@
-Counter in file 0 4:9 -> 4:26, #1
-Counter in file 0 5:8 -> 5:12, (#1 + 0)
-Counter in file 0 5:13 -> 7:6, #2
-Counter in file 0 10:9 -> 10:10, (#3 + (#12 + #13))
-Counter in file 0 10:16 -> 10:29, (#2 + 0)
-Counter in file 0 11:9 -> 12:10, #3
-Counter in file 0 13:15 -> 13:28, ((#2 + 0) - #3)
-Counter in file 0 14:12 -> 14:25, #4
-Counter in file 0 14:29 -> 14:42, (#4 - #15)
-Counter in file 0 14:42 -> 14:43, ((#4 - #15) - #16)
-Counter in file 0 14:42 -> 14:43, (#15 + #16)
-Counter in file 0 14:46 -> 14:60, #23
-Counter in file 0 14:60 -> 14:61, (#18 + #19)
-Counter in file 0 14:60 -> 14:61, (#23 - #19)
-Counter in file 0 14:61 -> 16:10, #12
-Counter in file 0 16:10 -> 16:11, #13
-Counter in file 0 17:9 -> 18:18, (#12 + #13)
-Counter in file 0 20:9 -> 20:15, (((#2 + 0) - #3) - #4)
-Counter in file 0 23:9 -> 23:26, ((#3 + (#12 + #13)) + 0)
-Counter in file 0 24:8 -> 24:12, ((#3 + (#12 + #13)) + 0)
-Counter in file 0 24:13 -> 26:6, #14
-Counter in file 0 28:8 -> 28:21, (#14 + 0)
-Counter in file 0 28:22 -> 30:6, #17
-Counter in file 0 30:15 -> 30:28, ((#14 + 0) - #17)
-Counter in file 0 31:12 -> 31:25, (((#14 + 0) - #17) - #8)
-Counter in file 0 31:29 -> 31:42, ((((#14 + 0) - #17) - #8) - #24)
-Counter in file 0 31:42 -> 31:43, (((((#14 + 0) - #17) - #8) - #24) - #25)
-Counter in file 0 31:42 -> 31:43, (#24 + #25)
-Counter in file 0 31:46 -> 31:60, #34
-Counter in file 0 31:60 -> 31:61, (#34 - #32)
-Counter in file 0 31:60 -> 31:61, (#31 + #32)
-Counter in file 0 31:61 -> 33:10, #20
-Counter in file 0 33:10 -> 33:11, #21
-Counter in file 0 34:9 -> 34:23, (#20 + #21)
-Counter in file 0 36:9 -> 36:15, #8
-Counter in file 0 39:8 -> 39:12, (#17 + (#20 + #21))
-Counter in file 0 52:13 -> 52:30, #22
-Counter in file 0 53:12 -> 53:16, (#22 + 0)
-Counter in file 0 53:17 -> 55:10, #26
-Counter in file 0 57:12 -> 57:25, (#26 + 0)
-Counter in file 0 57:26 -> 59:10, #27
-Counter in file 0 65:17 -> 65:30, ((#26 + 0) - #27)
-Counter in file 0 66:16 -> 66:29, (((#26 + 0) - #27) - #7)
-Counter in file 0 66:33 -> 66:46, ((((#26 + 0) - #27) - #7) - #37)
-Counter in file 0 66:46 -> 66:47, (#37 + #38)
-Counter in file 0 66:46 -> 66:47, (((((#26 + 0) - #27) - #7) - #37) - #38)
-Counter in file 0 66:50 -> 66:64, #47
-Counter in file 0 66:64 -> 66:65, (#47 - #42)
-Counter in file 0 66:64 -> 66:65, (#41 + #42)
-Counter in file 0 66:65 -> 68:14, #28
-Counter in file 0 68:14 -> 68:15, #29
-Counter in file 0 69:13 -> 69:27, (#28 + #29)
-Counter in file 0 71:13 -> 71:19, #7
-Counter in file 0 73:6 -> 73:7, (#27 + (#28 + #29))
-Counter in file 0 75:9 -> 75:26, ((#27 + (#28 + #29)) + 0)
-Counter in file 0 76:8 -> 76:12, (((#27 + (#28 + #29)) + 0) + 0)
-Counter in file 0 76:13 -> 78:6, #30
-Counter in file 0 80:9 -> 80:10, (#33 + (#35 + #36))
-Counter in file 0 80:16 -> 80:29, (#30 + 0)
-Counter in file 0 80:30 -> 82:6, #33
-Counter in file 0 82:15 -> 82:28, ((#30 + 0) - #33)
-Counter in file 0 83:12 -> 83:25, (((#30 + 0) - #33) - #6)
-Counter in file 0 83:29 -> 83:42, ((((#30 + 0) - #33) - #6) - #39)
-Counter in file 0 83:42 -> 83:43, (#39 + #40)
-Counter in file 0 83:42 -> 83:43, (((((#30 + 0) - #33) - #6) - #39) - #40)
-Counter in file 0 83:46 -> 83:60, #48
-Counter in file 0 83:60 -> 83:61, (#43 + #44)
-Counter in file 0 83:60 -> 83:61, (#48 - #44)
-Counter in file 0 83:61 -> 85:10, #35
-Counter in file 0 85:10 -> 85:11, #36
-Counter in file 0 86:9 -> 86:23, (#35 + #36)
-Counter in file 0 88:13 -> 90:15, #6
-Counter in file 0 93:9 -> 93:10, (#9 + (#10 + #11))
-Counter in file 0 93:16 -> 93:29, ((#33 + (#35 + #36)) + 0)
-Counter in file 0 93:30 -> 95:6, #9
-Counter in file 0 95:15 -> 95:28, ((#33 + (#35 + #36)) - #9)
-Counter in file 0 96:12 -> 96:25, (((#33 + (#35 + #36)) - #9) - #5)
-Counter in file 0 96:29 -> 96:42, ((((#33 + (#35 + #36)) - #9) - #5) - #45)
-Counter in file 0 96:42 -> 96:43, (#45 + #46)
-Counter in file 0 96:42 -> 96:43, (((((#33 + (#35 + #36)) - #9) - #5) - #45) - #46)
-Counter in file 0 96:46 -> 96:60, #51
-Counter in file 0 96:60 -> 96:61, (#49 + #50)
-Counter in file 0 96:60 -> 96:61, (#51 - #50)
-Counter in file 0 96:61 -> 98:10, #10
-Counter in file 0 98:10 -> 98:11, #11
-Counter in file 0 99:9 -> 99:23, (#10 + #11)
-Counter in file 0 101:9 -> 101:15, #5
-Counter in file 0 103:1 -> 103:2, ((#9 + (#10 + #11)) + (((#5 + #6) + (#7 + #8)) + (((#2 + 0) - #3) - #4)))
-Emitting segments for file: ../coverage/conditions.rs
-Combined regions:
-  4:9 -> 4:26 (count=1)
-  5:8 -> 5:12 (count=1)
-  5:13 -> 7:6 (count=1)
-  10:9 -> 10:10 (count=1)
-  10:16 -> 10:29 (count=1)
-  11:9 -> 12:10 (count=1)
-  13:15 -> 13:28 (count=0)
-  14:12 -> 14:25 (count=0)
-  14:29 -> 14:42 (count=0)
-  14:42 -> 14:43 (count=0)
-  14:46 -> 14:60 (count=0)
-  14:60 -> 14:61 (count=0)
-  14:61 -> 16:10 (count=0)
-  16:10 -> 16:11 (count=0)
-  17:9 -> 18:18 (count=0)
-  20:9 -> 20:15 (count=0)
-  23:9 -> 23:26 (count=1)
-  24:8 -> 24:12 (count=1)
-  24:13 -> 26:6 (count=1)
-  28:8 -> 28:21 (count=1)
-  28:22 -> 30:6 (count=1)
-  30:15 -> 30:28 (count=0)
-  31:12 -> 31:25 (count=0)
-  31:29 -> 31:42 (count=0)
-  31:42 -> 31:43 (count=0)
-  31:46 -> 31:60 (count=0)
-  31:60 -> 31:61 (count=0)
-  31:61 -> 33:10 (count=0)
-  33:10 -> 33:11 (count=0)
-  34:9 -> 34:23 (count=0)
-  36:9 -> 36:15 (count=0)
-  39:8 -> 39:12 (count=1)
-  52:13 -> 52:30 (count=1)
-  53:12 -> 53:16 (count=1)
-  53:17 -> 55:10 (count=1)
-  57:12 -> 57:25 (count=1)
-  57:26 -> 59:10 (count=1)
-  65:17 -> 65:30 (count=0)
-  66:16 -> 66:29 (count=0)
-  66:33 -> 66:46 (count=0)
-  66:46 -> 66:47 (count=0)
-  66:50 -> 66:64 (count=0)
-  66:64 -> 66:65 (count=0)
-  66:65 -> 68:14 (count=0)
-  68:14 -> 68:15 (count=0)
-  69:13 -> 69:27 (count=0)
-  71:13 -> 71:19 (count=0)
-  73:6 -> 73:7 (count=1)
-  75:9 -> 75:26 (count=1)
-  76:8 -> 76:12 (count=1)
-  76:13 -> 78:6 (count=1)
-  80:9 -> 80:10 (count=0)
-  80:16 -> 80:29 (count=1)
-  80:30 -> 82:6 (count=0)
-  82:15 -> 82:28 (count=1)
-  83:12 -> 83:25 (count=0)
-  83:29 -> 83:42 (count=0)
-  83:42 -> 83:43 (count=0)
-  83:46 -> 83:60 (count=0)
-  83:60 -> 83:61 (count=0)
-  83:61 -> 85:10 (count=0)
-  85:10 -> 85:11 (count=0)
-  86:9 -> 86:23 (count=0)
-  88:13 -> 90:15 (count=1)
-  93:9 -> 93:10 (count=0)
-  93:16 -> 93:29 (count=0)
-  93:30 -> 95:6 (count=0)
-  95:15 -> 95:28 (count=0)
-  96:12 -> 96:25 (count=0)
-  96:29 -> 96:42 (count=0)
-  96:42 -> 96:43 (count=0)
-  96:46 -> 96:60 (count=0)
-  96:60 -> 96:61 (count=0)
-  96:61 -> 98:10 (count=0)
-  98:10 -> 98:11 (count=0)
-  99:9 -> 99:23 (count=0)
-  101:9 -> 101:15 (count=0)
-  103:1 -> 103:2 (count=1)
-Segment at 4:9 (count = 1), RegionEntry
-Segment at 4:26 (count = 0), Skipped
-Segment at 5:8 (count = 1), RegionEntry
-Segment at 5:12 (count = 0), Skipped
-Segment at 5:13 (count = 1), RegionEntry
-Segment at 7:6 (count = 0), Skipped
-Segment at 10:9 (count = 1), RegionEntry
-Segment at 10:10 (count = 0), Skipped
-Segment at 10:16 (count = 1), RegionEntry
-Segment at 10:29 (count = 0), Skipped
-Segment at 11:9 (count = 1), RegionEntry
-Segment at 12:10 (count = 0), Skipped
-Segment at 13:15 (count = 0), RegionEntry
-Segment at 13:28 (count = 0), Skipped
-Segment at 14:12 (count = 0), RegionEntry
-Segment at 14:25 (count = 0), Skipped
-Segment at 14:29 (count = 0), RegionEntry
-Segment at 14:42 (count = 0), RegionEntry
-Segment at 14:43 (count = 0), Skipped
-Segment at 14:46 (count = 0), RegionEntry
-Segment at 14:60 (count = 0), RegionEntry
-Segment at 14:61 (count = 0), RegionEntry
-Segment at 16:10 (count = 0), RegionEntry
-Segment at 16:11 (count = 0), Skipped
-Segment at 17:9 (count = 0), RegionEntry
-Segment at 18:18 (count = 0), Skipped
-Segment at 20:9 (count = 0), RegionEntry
-Segment at 20:15 (count = 0), Skipped
-Segment at 23:9 (count = 1), RegionEntry
-Segment at 23:26 (count = 0), Skipped
-Segment at 24:8 (count = 1), RegionEntry
-Segment at 24:12 (count = 0), Skipped
-Segment at 24:13 (count = 1), RegionEntry
-Segment at 26:6 (count = 0), Skipped
-Segment at 28:8 (count = 1), RegionEntry
-Segment at 28:21 (count = 0), Skipped
-Segment at 28:22 (count = 1), RegionEntry
-Segment at 30:6 (count = 0), Skipped
-Segment at 30:15 (count = 0), RegionEntry
-Segment at 30:28 (count = 0), Skipped
-Segment at 31:12 (count = 0), RegionEntry
-Segment at 31:25 (count = 0), Skipped
-Segment at 31:29 (count = 0), RegionEntry
-Segment at 31:42 (count = 0), RegionEntry
-Segment at 31:43 (count = 0), Skipped
-Segment at 31:46 (count = 0), RegionEntry
-Segment at 31:60 (count = 0), RegionEntry
-Segment at 31:61 (count = 0), RegionEntry
-Segment at 33:10 (count = 0), RegionEntry
-Segment at 33:11 (count = 0), Skipped
-Segment at 34:9 (count = 0), RegionEntry
-Segment at 34:23 (count = 0), Skipped
-Segment at 36:9 (count = 0), RegionEntry
-Segment at 36:15 (count = 0), Skipped
-Segment at 39:8 (count = 1), RegionEntry
-Segment at 39:12 (count = 0), Skipped
-Segment at 52:13 (count = 1), RegionEntry
-Segment at 52:30 (count = 0), Skipped
-Segment at 53:12 (count = 1), RegionEntry
-Segment at 53:16 (count = 0), Skipped
-Segment at 53:17 (count = 1), RegionEntry
-Segment at 55:10 (count = 0), Skipped
-Segment at 57:12 (count = 1), RegionEntry
-Segment at 57:25 (count = 0), Skipped
-Segment at 57:26 (count = 1), RegionEntry
-Segment at 59:10 (count = 0), Skipped
-Segment at 65:17 (count = 0), RegionEntry
-Segment at 65:30 (count = 0), Skipped
-Segment at 66:16 (count = 0), RegionEntry
-Segment at 66:29 (count = 0), Skipped
-Segment at 66:33 (count = 0), RegionEntry
-Segment at 66:46 (count = 0), RegionEntry
-Segment at 66:47 (count = 0), Skipped
-Segment at 66:50 (count = 0), RegionEntry
-Segment at 66:64 (count = 0), RegionEntry
-Segment at 66:65 (count = 0), RegionEntry
-Segment at 68:14 (count = 0), RegionEntry
-Segment at 68:15 (count = 0), Skipped
-Segment at 69:13 (count = 0), RegionEntry
-Segment at 69:27 (count = 0), Skipped
-Segment at 71:13 (count = 0), RegionEntry
-Segment at 71:19 (count = 0), Skipped
-Segment at 73:6 (count = 1), RegionEntry
-Segment at 73:7 (count = 0), Skipped
-Segment at 75:9 (count = 1), RegionEntry
-Segment at 75:26 (count = 0), Skipped
-Segment at 76:8 (count = 1), RegionEntry
-Segment at 76:12 (count = 0), Skipped
-Segment at 76:13 (count = 1), RegionEntry
-Segment at 78:6 (count = 0), Skipped
-Segment at 80:9 (count = 0), RegionEntry
-Segment at 80:10 (count = 0), Skipped
-Segment at 80:16 (count = 1), RegionEntry
-Segment at 80:29 (count = 0), Skipped
-Segment at 80:30 (count = 0), RegionEntry
-Segment at 82:6 (count = 0), Skipped
-Segment at 82:15 (count = 1), RegionEntry
-Segment at 82:28 (count = 0), Skipped
-Segment at 83:12 (count = 0), RegionEntry
-Segment at 83:25 (count = 0), Skipped
-Segment at 83:29 (count = 0), RegionEntry
-Segment at 83:42 (count = 0), RegionEntry
-Segment at 83:43 (count = 0), Skipped
-Segment at 83:46 (count = 0), RegionEntry
-Segment at 83:60 (count = 0), RegionEntry
-Segment at 83:61 (count = 0), RegionEntry
-Segment at 85:10 (count = 0), RegionEntry
-Segment at 85:11 (count = 0), Skipped
-Segment at 86:9 (count = 0), RegionEntry
-Segment at 86:23 (count = 0), Skipped
-Segment at 88:13 (count = 1), RegionEntry
-Segment at 90:15 (count = 0), Skipped
-Segment at 93:9 (count = 0), RegionEntry
-Segment at 93:10 (count = 0), Skipped
-Segment at 93:16 (count = 0), RegionEntry
-Segment at 93:29 (count = 0), Skipped
-Segment at 93:30 (count = 0), RegionEntry
-Segment at 95:6 (count = 0), Skipped
-Segment at 95:15 (count = 0), RegionEntry
-Segment at 95:28 (count = 0), Skipped
-Segment at 96:12 (count = 0), RegionEntry
-Segment at 96:25 (count = 0), Skipped
-Segment at 96:29 (count = 0), RegionEntry
-Segment at 96:42 (count = 0), RegionEntry
-Segment at 96:43 (count = 0), Skipped
-Segment at 96:46 (count = 0), RegionEntry
-Segment at 96:60 (count = 0), RegionEntry
-Segment at 96:61 (count = 0), RegionEntry
-Segment at 98:10 (count = 0), RegionEntry
-Segment at 98:11 (count = 0), Skipped
-Segment at 99:9 (count = 0), RegionEntry
-Segment at 99:23 (count = 0), Skipped
-Segment at 101:9 (count = 0), RegionEntry
-Segment at 101:15 (count = 0), Skipped
-Segment at 103:1 (count = 1), RegionEntry
-Segment at 103:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.drop_trait.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.drop_trait.txt
deleted file mode 100644
index 375025fe8bcc2..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.drop_trait.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Counter in file 0 9:24 -> 11:6, #1
-Counter in file 0 15:9 -> 17:42, #1
-Counter in file 0 19:8 -> 19:12, (#1 + 0)
-Counter in file 0 20:9 -> 21:22, #2
-Counter in file 0 27:1 -> 27:2, (#2 + 0)
-Emitting segments for file: ../coverage/drop_trait.rs
-Combined regions:
-  9:24 -> 11:6 (count=2)
-  15:9 -> 17:42 (count=1)
-  19:8 -> 19:12 (count=1)
-  20:9 -> 21:22 (count=1)
-  27:1 -> 27:2 (count=1)
-Segment at 9:24 (count = 2), RegionEntry
-Segment at 11:6 (count = 0), Skipped
-Segment at 15:9 (count = 1), RegionEntry
-Segment at 17:42 (count = 0), Skipped
-Segment at 19:8 (count = 1), RegionEntry
-Segment at 19:12 (count = 0), Skipped
-Segment at 20:9 (count = 1), RegionEntry
-Segment at 21:22 (count = 0), Skipped
-Segment at 27:1 (count = 1), RegionEntry
-Segment at 27:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.generics.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.generics.txt
deleted file mode 100644
index 013a69ed3983a..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.generics.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-Counter in file 0 17:24 -> 19:6, #1
-Counter in file 0 17:24 -> 19:6, #1
-Counter in file 0 23:9 -> 28:28, #1
-Counter in file 0 30:8 -> 30:12, (#1 + 0)
-Counter in file 0 31:9 -> 32:22, #2
-Counter in file 0 38:1 -> 38:2, (#2 + 0)
-Counter in file 0 10:49 -> 12:6, #1
-Counter in file 0 10:49 -> 12:6, #1
-Emitting segments for file: ../coverage/generics.rs
-Combined regions:
-  10:49 -> 12:6 (count=3)
-  17:24 -> 19:6 (count=2)
-  23:9 -> 28:28 (count=1)
-  30:8 -> 30:12 (count=1)
-  31:9 -> 32:22 (count=1)
-  38:1 -> 38:2 (count=1)
-Segment at 10:49 (count = 3), RegionEntry
-Segment at 12:6 (count = 0), Skipped
-Segment at 17:24 (count = 2), RegionEntry
-Segment at 19:6 (count = 0), Skipped
-Segment at 23:9 (count = 1), RegionEntry
-Segment at 28:28 (count = 0), Skipped
-Segment at 30:8 (count = 1), RegionEntry
-Segment at 30:12 (count = 0), Skipped
-Segment at 31:9 (count = 1), RegionEntry
-Segment at 32:22 (count = 0), Skipped
-Segment at 38:1 (count = 1), RegionEntry
-Segment at 38:2 (count = 0), Skipped
-Emitting segments for function: _RNvMCs4fqI2P2rA04_8genericsINtB2_8FireworkdE12set_strengthB2_
-Combined regions:
-  10:49 -> 12:6 (count=2)
-Segment at 10:49 (count = 2), RegionEntry
-Segment at 12:6 (count = 0), Skipped
-Emitting segments for function: _RNvMCs4fqI2P2rA04_8genericsINtB2_8FireworklE12set_strengthB2_
-Combined regions:
-  10:49 -> 12:6 (count=1)
-Segment at 10:49 (count = 1), RegionEntry
-Segment at 12:6 (count = 0), Skipped
-Emitting segments for function: _RNvXs_Cs4fqI2P2rA04_8genericsINtB4_8FireworklENtNtNtCs7f2nZg1zwMz_4core3ops4drop4Drop4dropB4_
-Combined regions:
-  17:24 -> 19:6 (count=1)
-Segment at 17:24 (count = 1), RegionEntry
-Segment at 19:6 (count = 0), Skipped
-Emitting segments for function: _RNvXs_Cs4fqI2P2rA04_8genericsINtB4_8FireworkdENtNtNtCs7f2nZg1zwMz_4core3ops4drop4Drop4dropB4_
-Combined regions:
-  17:24 -> 19:6 (count=1)
-Segment at 17:24 (count = 1), RegionEntry
-Segment at 19:6 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.if.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.if.txt
deleted file mode 100644
index c2bef365ea9d8..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.if.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Counter in file 0 8:5 -> 18:10, #1
-Counter in file 0 21:9 -> 21:16, (#1 + 0)
-Counter in file 0 22:5 -> 27:6, #2
-Counter in file 0 27:6 -> 27:7, (#1 - #2)
-Counter in file 0 28:1 -> 28:2, (#2 + (#1 - #2))
-Emitting segments for file: ../coverage/if.rs
-Combined regions:
-  8:5 -> 18:10 (count=1)
-  21:9 -> 21:16 (count=1)
-  22:5 -> 27:6 (count=1)
-  27:6 -> 27:7 (count=0)
-  28:1 -> 28:2 (count=1)
-Segment at 8:5 (count = 1), RegionEntry
-Segment at 18:10 (count = 0), Skipped
-Segment at 21:9 (count = 1), RegionEntry
-Segment at 21:16 (count = 0), Skipped
-Segment at 22:5 (count = 1), RegionEntry
-Segment at 27:6 (count = 0), RegionEntry
-Segment at 27:7 (count = 0), Skipped
-Segment at 28:1 (count = 1), RegionEntry
-Segment at 28:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.if_else.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.if_else.txt
deleted file mode 100644
index faf5c094bbaaa..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.if_else.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Counter in file 0 7:9 -> 11:16, #1
-Counter in file 0 12:5 -> 17:6, #2
-Counter in file 0 20:9 -> 22:16, (#1 - #2)
-Counter in file 0 26:9 -> 26:16, (#2 + (#1 - #2))
-Counter in file 0 27:5 -> 32:6, #3
-Counter in file 0 34:5 -> 39:6, ((#2 + (#1 - #2)) - #3)
-Counter in file 0 40:1 -> 40:2, (#3 + ((#2 + (#1 - #2)) - #3))
-Emitting segments for file: ../coverage/if_else.rs
-Combined regions:
-  7:9 -> 11:16 (count=1)
-  12:5 -> 17:6 (count=1)
-  20:9 -> 22:16 (count=0)
-  26:9 -> 26:16 (count=1)
-  27:5 -> 32:6 (count=1)
-  34:5 -> 39:6 (count=0)
-  40:1 -> 40:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
-Segment at 11:16 (count = 0), Skipped
-Segment at 12:5 (count = 1), RegionEntry
-Segment at 17:6 (count = 0), Skipped
-Segment at 20:9 (count = 0), RegionEntry
-Segment at 22:16 (count = 0), Skipped
-Segment at 26:9 (count = 1), RegionEntry
-Segment at 26:16 (count = 0), Skipped
-Segment at 27:5 (count = 1), RegionEntry
-Segment at 32:6 (count = 0), Skipped
-Segment at 34:5 (count = 0), RegionEntry
-Segment at 39:6 (count = 0), Skipped
-Segment at 40:1 (count = 1), RegionEntry
-Segment at 40:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.inner_items.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.inner_items.txt
deleted file mode 100644
index e4dfae7681783..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.inner_items.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-Counter in file 0 19:13 -> 22:6, #1
-Counter in file 0 7:9 -> 9:26, #1
-Counter in file 0 10:8 -> 10:15, (#1 + 0)
-Counter in file 0 10:16 -> 12:6, #2
-Counter in file 0 12:6 -> 12:7, (#1 - #2)
-Counter in file 0 48:8 -> 48:15, (#2 + (#1 - #2))
-Counter in file 0 48:16 -> 50:6, #3
-Counter in file 0 50:6 -> 50:7, ((#2 + (#1 - #2)) - #3)
-Counter in file 0 52:9 -> 57:2, (#3 + ((#2 + (#1 - #2)) - #3))
-Counter in file 0 33:42 -> 36:10, #1
-Counter in file 0 40:45 -> 43:10, #1
-Emitting segments for file: ../coverage/inner_items.rs
-Combined regions:
-  7:9 -> 9:26 (count=1)
-  10:8 -> 10:15 (count=1)
-  10:16 -> 12:6 (count=1)
-  12:6 -> 12:7 (count=0)
-  19:13 -> 22:6 (count=3)
-  33:42 -> 36:10 (count=1)
-  40:45 -> 43:10 (count=1)
-  48:8 -> 48:15 (count=1)
-  48:16 -> 50:6 (count=1)
-  50:6 -> 50:7 (count=0)
-  52:9 -> 57:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
-Segment at 9:26 (count = 0), Skipped
-Segment at 10:8 (count = 1), RegionEntry
-Segment at 10:15 (count = 0), Skipped
-Segment at 10:16 (count = 1), RegionEntry
-Segment at 12:6 (count = 0), RegionEntry
-Segment at 12:7 (count = 0), Skipped
-Segment at 19:13 (count = 3), RegionEntry
-Segment at 22:6 (count = 0), Skipped
-Segment at 33:42 (count = 1), RegionEntry
-Segment at 36:10 (count = 0), Skipped
-Segment at 40:45 (count = 1), RegionEntry
-Segment at 43:10 (count = 0), Skipped
-Segment at 48:8 (count = 1), RegionEntry
-Segment at 48:15 (count = 0), Skipped
-Segment at 48:16 (count = 1), RegionEntry
-Segment at 50:6 (count = 0), RegionEntry
-Segment at 50:7 (count = 0), Skipped
-Segment at 52:9 (count = 1), RegionEntry
-Segment at 57:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.lazy_boolean.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.lazy_boolean.txt
deleted file mode 100644
index 8e56d79d9d2aa..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.lazy_boolean.txt
+++ /dev/null
@@ -1,131 +0,0 @@
-Counter in file 0 7:9 -> 9:42, #1
-Counter in file 0 10:8 -> 10:15, (#1 + 0)
-Counter in file 0 10:16 -> 14:6, #2
-Counter in file 0 14:6 -> 14:7, (#1 - #2)
-Counter in file 0 16:9 -> 16:17, ((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4))
-Counter in file 0 18:13 -> 18:18, (#2 + (#1 - #2))
-Counter in file 0 20:13 -> 20:18, ((#2 + (#1 - #2)) - #3)
-Counter in file 0 20:18 -> 20:19, (#3 + #4)
-Counter in file 0 20:18 -> 20:19, (((#2 + (#1 - #2)) - #3) - #4)
-Counter in file 0 23:9 -> 23:17, ((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6))
-Counter in file 0 25:13 -> 25:18, (((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) + 0)
-Counter in file 0 27:13 -> 27:18, (((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5)
-Counter in file 0 27:18 -> 27:19, (#5 + #6)
-Counter in file 0 27:18 -> 27:19, ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)
-Counter in file 0 29:9 -> 29:17, ((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8))
-Counter in file 0 29:20 -> 29:25, (((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) + 0)
-Counter in file 0 29:29 -> 29:34, #7
-Counter in file 0 29:34 -> 29:35, ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)
-Counter in file 0 29:34 -> 29:35, (#7 - #8)
-Counter in file 0 30:9 -> 30:17, ((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10))
-Counter in file 0 30:20 -> 30:25, (((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) + 0)
-Counter in file 0 30:29 -> 30:34, #9
-Counter in file 0 30:34 -> 30:35, ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)
-Counter in file 0 30:34 -> 30:35, (#9 - #10)
-Counter in file 0 33:9 -> 34:16, (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) + 0)
-Counter in file 0 35:5 -> 38:6, #11
-Counter in file 0 38:6 -> 38:7, (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)
-Counter in file 0 41:9 -> 41:16, (#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11))
-Counter in file 0 42:5 -> 45:6, #12
-Counter in file 0 47:5 -> 50:6, ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)
-Counter in file 0 52:8 -> 52:16, (#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12))
-Counter in file 0 52:17 -> 54:6, #13
-Counter in file 0 54:6 -> 54:7, ((#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)) - #13)
-Counter in file 0 56:8 -> 56:15, (#13 + ((#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)) - #13))
-Counter in file 0 56:16 -> 58:6, #14
-Counter in file 0 58:12 -> 60:6, ((#13 + ((#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)) - #13)) - #14)
-Counter in file 0 61:1 -> 61:2, (#14 + ((#13 + ((#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)) - #13)) - #14))
-Emitting segments for file: ../coverage/lazy_boolean.rs
-Combined regions:
-  7:9 -> 9:42 (count=1)
-  10:8 -> 10:15 (count=1)
-  10:16 -> 14:6 (count=1)
-  14:6 -> 14:7 (count=0)
-  16:9 -> 16:17 (count=1)
-  18:13 -> 18:18 (count=1)
-  20:13 -> 20:18 (count=0)
-  20:18 -> 20:19 (count=1)
-  23:9 -> 23:17 (count=1)
-  25:13 -> 25:18 (count=1)
-  27:13 -> 27:18 (count=1)
-  27:18 -> 27:19 (count=1)
-  29:9 -> 29:17 (count=1)
-  29:20 -> 29:25 (count=1)
-  29:29 -> 29:34 (count=1)
-  29:34 -> 29:35 (count=1)
-  30:9 -> 30:17 (count=1)
-  30:20 -> 30:25 (count=1)
-  30:29 -> 30:34 (count=0)
-  30:34 -> 30:35 (count=1)
-  33:9 -> 34:16 (count=1)
-  35:5 -> 38:6 (count=0)
-  38:6 -> 38:7 (count=1)
-  41:9 -> 41:16 (count=1)
-  42:5 -> 45:6 (count=1)
-  47:5 -> 50:6 (count=0)
-  52:8 -> 52:16 (count=1)
-  52:17 -> 54:6 (count=0)
-  54:6 -> 54:7 (count=1)
-  56:8 -> 56:15 (count=1)
-  56:16 -> 58:6 (count=1)
-  58:12 -> 60:6 (count=0)
-  61:1 -> 61:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
-Segment at 9:42 (count = 0), Skipped
-Segment at 10:8 (count = 1), RegionEntry
-Segment at 10:15 (count = 0), Skipped
-Segment at 10:16 (count = 1), RegionEntry
-Segment at 14:6 (count = 0), RegionEntry
-Segment at 14:7 (count = 0), Skipped
-Segment at 16:9 (count = 1), RegionEntry
-Segment at 16:17 (count = 0), Skipped
-Segment at 18:13 (count = 1), RegionEntry
-Segment at 18:18 (count = 0), Skipped
-Segment at 20:13 (count = 0), RegionEntry
-Segment at 20:18 (count = 1), RegionEntry
-Segment at 20:19 (count = 0), Skipped
-Segment at 23:9 (count = 1), RegionEntry
-Segment at 23:17 (count = 0), Skipped
-Segment at 25:13 (count = 1), RegionEntry
-Segment at 25:18 (count = 0), Skipped
-Segment at 27:13 (count = 1), RegionEntry
-Segment at 27:18 (count = 1), RegionEntry
-Segment at 27:19 (count = 0), Skipped
-Segment at 29:9 (count = 1), RegionEntry
-Segment at 29:17 (count = 0), Skipped
-Segment at 29:20 (count = 1), RegionEntry
-Segment at 29:25 (count = 0), Skipped
-Segment at 29:29 (count = 1), RegionEntry
-Segment at 29:34 (count = 1), RegionEntry
-Segment at 29:35 (count = 0), Skipped
-Segment at 30:9 (count = 1), RegionEntry
-Segment at 30:17 (count = 0), Skipped
-Segment at 30:20 (count = 1), RegionEntry
-Segment at 30:25 (count = 0), Skipped
-Segment at 30:29 (count = 0), RegionEntry
-Segment at 30:34 (count = 1), RegionEntry
-Segment at 30:35 (count = 0), Skipped
-Segment at 33:9 (count = 1), RegionEntry
-Segment at 34:16 (count = 0), Skipped
-Segment at 35:5 (count = 0), RegionEntry
-Segment at 38:6 (count = 1), RegionEntry
-Segment at 38:7 (count = 0), Skipped
-Segment at 41:9 (count = 1), RegionEntry
-Segment at 41:16 (count = 0), Skipped
-Segment at 42:5 (count = 1), RegionEntry
-Segment at 45:6 (count = 0), Skipped
-Segment at 47:5 (count = 0), RegionEntry
-Segment at 50:6 (count = 0), Skipped
-Segment at 52:8 (count = 1), RegionEntry
-Segment at 52:16 (count = 0), Skipped
-Segment at 52:17 (count = 0), RegionEntry
-Segment at 54:6 (count = 1), RegionEntry
-Segment at 54:7 (count = 0), Skipped
-Segment at 56:8 (count = 1), RegionEntry
-Segment at 56:15 (count = 0), Skipped
-Segment at 56:16 (count = 1), RegionEntry
-Segment at 58:6 (count = 0), Skipped
-Segment at 58:12 (count = 0), RegionEntry
-Segment at 60:6 (count = 0), Skipped
-Segment at 61:1 (count = 1), RegionEntry
-Segment at 61:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.loop_break_value.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.loop_break_value.txt
deleted file mode 100644
index a6144b8072ace..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.loop_break_value.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-Counter in file 0 3:11 -> 13:2, #1
-Emitting segments for file: ../coverage/loop_break_value.rs
-Combined regions:
-  3:11 -> 13:2 (count=1)
-Segment at 3:11 (count = 1), RegionEntry
-Segment at 13:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.loops_branches.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.loops_branches.txt
deleted file mode 100644
index d8af6998964cf..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.loops_branches.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-Counter in file 0 10:12 -> 10:16, #1
-Counter in file 0 11:16 -> 11:21, #2
-Counter in file 0 14:14 -> 14:15, (#2 - #5)
-Counter in file 0 15:13 -> 15:31, (0 + (#2 - #5))
-Counter in file 0 15:31 -> 15:32, #4
-Counter in file 0 17:10 -> 17:11, #3
-Counter in file 0 18:9 -> 18:15, (#3 + 0)
-Counter in file 0 19:5 -> 19:6, (#4 + (#3 + 0))
-Counter in file 0 22:11 -> 25:2, #1
-Emitting segments for file: ../coverage/loops_branches.rs
-Combined regions:
-  10:12 -> 10:16 (count=1)
-  11:16 -> 11:21 (count=1)
-  14:14 -> 14:15 (count=1)
-  15:13 -> 15:31 (count=1)
-  15:31 -> 15:32 (count=0)
-  17:10 -> 17:11 (count=1)
-  18:9 -> 18:15 (count=1)
-  19:5 -> 19:6 (count=1)
-  22:11 -> 25:2 (count=1)
-Segment at 10:12 (count = 1), RegionEntry
-Segment at 10:16 (count = 0), Skipped
-Segment at 11:16 (count = 1), RegionEntry
-Segment at 11:21 (count = 0), Skipped
-Segment at 14:14 (count = 1), RegionEntry
-Segment at 14:15 (count = 0), Skipped
-Segment at 15:13 (count = 1), RegionEntry
-Segment at 15:31 (count = 0), RegionEntry
-Segment at 15:32 (count = 0), Skipped
-Segment at 17:10 (count = 1), RegionEntry
-Segment at 17:11 (count = 0), Skipped
-Segment at 18:9 (count = 1), RegionEntry
-Segment at 18:15 (count = 0), Skipped
-Segment at 19:5 (count = 1), RegionEntry
-Segment at 19:6 (count = 0), Skipped
-Segment at 22:11 (count = 1), RegionEntry
-Segment at 25:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.nested_loops.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.nested_loops.txt
deleted file mode 100644
index f8e504c56c48e..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.nested_loops.txt
+++ /dev/null
@@ -1,69 +0,0 @@
-Counter in file 0 2:9 -> 3:27, #1
-Counter in file 0 5:19 -> 5:32, (#1 + (#2 + #3))
-Counter in file 0 6:13 -> 7:24, ((#1 + (#2 + #3)) - #4)
-Counter in file 0 8:13 -> 8:14, ((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3)
-Counter in file 0 8:18 -> 8:23, (((#1 + (#2 + #3)) - #4) + (#6 + #7))
-Counter in file 0 9:16 -> 9:22, (((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) + 0)
-Counter in file 0 10:17 -> 10:22, #2
-Counter in file 0 12:13 -> 13:19, (((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) - #2)
-Counter in file 0 14:16 -> 14:22, ((((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) - #2) + 0)
-Counter in file 0 15:17 -> 16:27, ((((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) - #2) - #7)
-Counter in file 0 17:21 -> 17:33, #5
-Counter in file 0 18:24 -> 21:14, #6
-Counter in file 0 21:14 -> 21:15, #7
-Counter in file 0 22:10 -> 22:11, (#6 + #7)
-Counter in file 0 23:9 -> 23:23, (#2 + #3)
-Counter in file 0 24:6 -> 24:7, #4
-Counter in file 0 25:1 -> 25:2, (#5 + #4)
-Emitting segments for file: ../coverage/nested_loops.rs
-Combined regions:
-  2:9 -> 3:27 (count=1)
-  5:19 -> 5:32 (count=1)
-  6:13 -> 7:24 (count=1)
-  8:13 -> 8:14 (count=3)
-  8:18 -> 8:23 (count=3)
-  9:16 -> 9:22 (count=3)
-  10:17 -> 10:22 (count=0)
-  12:13 -> 13:19 (count=3)
-  14:16 -> 14:22 (count=3)
-  15:17 -> 16:27 (count=1)
-  17:21 -> 17:33 (count=1)
-  18:24 -> 21:14 (count=0)
-  21:14 -> 21:15 (count=2)
-  22:10 -> 22:11 (count=2)
-  23:9 -> 23:23 (count=0)
-  24:6 -> 24:7 (count=0)
-  25:1 -> 25:2 (count=1)
-Segment at 2:9 (count = 1), RegionEntry
-Segment at 3:27 (count = 0), Skipped
-Segment at 5:19 (count = 1), RegionEntry
-Segment at 5:32 (count = 0), Skipped
-Segment at 6:13 (count = 1), RegionEntry
-Segment at 7:24 (count = 0), Skipped
-Segment at 8:13 (count = 3), RegionEntry
-Segment at 8:14 (count = 0), Skipped
-Segment at 8:18 (count = 3), RegionEntry
-Segment at 8:23 (count = 0), Skipped
-Segment at 9:16 (count = 3), RegionEntry
-Segment at 9:22 (count = 0), Skipped
-Segment at 10:17 (count = 0), RegionEntry
-Segment at 10:22 (count = 0), Skipped
-Segment at 12:13 (count = 3), RegionEntry
-Segment at 13:19 (count = 0), Skipped
-Segment at 14:16 (count = 3), RegionEntry
-Segment at 14:22 (count = 0), Skipped
-Segment at 15:17 (count = 1), RegionEntry
-Segment at 16:27 (count = 0), Skipped
-Segment at 17:21 (count = 1), RegionEntry
-Segment at 17:33 (count = 0), Skipped
-Segment at 18:24 (count = 0), RegionEntry
-Segment at 21:14 (count = 2), RegionEntry
-Segment at 21:15 (count = 0), Skipped
-Segment at 22:10 (count = 2), RegionEntry
-Segment at 22:11 (count = 0), Skipped
-Segment at 23:9 (count = 0), RegionEntry
-Segment at 23:23 (count = 0), Skipped
-Segment at 24:6 (count = 0), RegionEntry
-Segment at 24:7 (count = 0), Skipped
-Segment at 25:1 (count = 1), RegionEntry
-Segment at 25:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.overflow.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.overflow.txt
deleted file mode 100644
index 8696e102b568e..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.overflow.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-Counter in file 0 16:9 -> 16:27, #1
-Counter in file 0 17:11 -> 17:24, (#1 + (#2 + (#3 + #4)))
-Counter in file 0 18:12 -> 18:26, ((#1 + (#2 + (#3 + #4))) - #5)
-Counter in file 0 18:27 -> 21:10, #2
-Counter in file 0 21:19 -> 21:32, (((#1 + (#2 + (#3 + #4))) - #5) - #2)
-Counter in file 0 21:33 -> 24:10, #3
-Counter in file 0 24:10 -> 24:11, #4
-Counter in file 0 24:10 -> 24:11, (#3 + #4)
-Counter in file 0 25:9 -> 25:23, (#2 + (#3 + #4))
-Counter in file 0 27:5 -> 28:2, #5
-Counter in file 0 5:8 -> 5:18, #1
-Counter in file 0 5:19 -> 7:6, #2
-Counter in file 0 7:6 -> 7:7, (#1 - #2)
-Counter in file 0 8:9 -> 13:2, (#2 + (#1 - #2))
-Emitting segments for file: ../coverage/overflow.rs
-Combined regions:
-  5:8 -> 5:18 (count=4)
-  5:19 -> 7:6 (count=1)
-  7:6 -> 7:7 (count=3)
-  8:9 -> 13:2 (count=4)
-  16:9 -> 16:27 (count=1)
-  17:11 -> 17:24 (count=10)
-  18:12 -> 18:26 (count=10)
-  18:27 -> 21:10 (count=0)
-  21:19 -> 21:32 (count=10)
-  21:33 -> 24:10 (count=3)
-  24:10 -> 24:11 (count=15)
-  25:9 -> 25:23 (count=9)
-  27:5 -> 28:2 (count=0)
-Segment at 5:8 (count = 4), RegionEntry
-Segment at 5:18 (count = 0), Skipped
-Segment at 5:19 (count = 1), RegionEntry
-Segment at 7:6 (count = 3), RegionEntry
-Segment at 7:7 (count = 0), Skipped
-Segment at 8:9 (count = 4), RegionEntry
-Segment at 13:2 (count = 0), Skipped
-Segment at 16:9 (count = 1), RegionEntry
-Segment at 16:27 (count = 0), Skipped
-Segment at 17:11 (count = 10), RegionEntry
-Segment at 17:24 (count = 0), Skipped
-Segment at 18:12 (count = 10), RegionEntry
-Segment at 18:26 (count = 0), Skipped
-Segment at 18:27 (count = 0), RegionEntry
-Segment at 21:10 (count = 0), Skipped
-Segment at 21:19 (count = 10), RegionEntry
-Segment at 21:32 (count = 0), Skipped
-Segment at 21:33 (count = 3), RegionEntry
-Segment at 24:10 (count = 15), RegionEntry
-Segment at 24:11 (count = 0), Skipped
-Segment at 25:9 (count = 9), RegionEntry
-Segment at 25:23 (count = 0), Skipped
-Segment at 27:5 (count = 0), RegionEntry
-Segment at 28:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.panic_unwind.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.panic_unwind.txt
deleted file mode 100644
index 9602ff1a985aa..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.panic_unwind.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-Counter in file 0 14:9 -> 14:27, #1
-Counter in file 0 15:11 -> 15:24, (#1 + (#2 + (#3 + #4)))
-Counter in file 0 16:12 -> 16:26, ((#1 + (#2 + (#3 + #4))) - #5)
-Counter in file 0 16:27 -> 18:10, #2
-Counter in file 0 18:19 -> 18:32, (((#1 + (#2 + (#3 + #4))) - #5) - #2)
-Counter in file 0 18:33 -> 20:10, #3
-Counter in file 0 20:10 -> 20:11, #4
-Counter in file 0 20:10 -> 20:11, (#3 + #4)
-Counter in file 0 21:9 -> 21:23, (#2 + (#3 + #4))
-Counter in file 0 23:5 -> 24:2, #5
-Counter in file 0 5:8 -> 5:20, #1
-Counter in file 0 6:9 -> 7:26, #2
-Counter in file 0 8:12 -> 11:2, (#1 - #2)
-Emitting segments for file: ../coverage/panic_unwind.rs
-Combined regions:
-  5:8 -> 5:20 (count=4)
-  6:9 -> 7:26 (count=1)
-  8:12 -> 11:2 (count=3)
-  14:9 -> 14:27 (count=1)
-  15:11 -> 15:24 (count=10)
-  16:12 -> 16:26 (count=10)
-  16:27 -> 18:10 (count=0)
-  18:19 -> 18:32 (count=10)
-  18:33 -> 20:10 (count=3)
-  20:10 -> 20:11 (count=15)
-  21:9 -> 21:23 (count=9)
-  23:5 -> 24:2 (count=0)
-Segment at 5:8 (count = 4), RegionEntry
-Segment at 5:20 (count = 0), Skipped
-Segment at 6:9 (count = 1), RegionEntry
-Segment at 7:26 (count = 0), Skipped
-Segment at 8:12 (count = 3), RegionEntry
-Segment at 11:2 (count = 0), Skipped
-Segment at 14:9 (count = 1), RegionEntry
-Segment at 14:27 (count = 0), Skipped
-Segment at 15:11 (count = 10), RegionEntry
-Segment at 15:24 (count = 0), Skipped
-Segment at 16:12 (count = 10), RegionEntry
-Segment at 16:26 (count = 0), Skipped
-Segment at 16:27 (count = 0), RegionEntry
-Segment at 18:10 (count = 0), Skipped
-Segment at 18:19 (count = 10), RegionEntry
-Segment at 18:32 (count = 0), Skipped
-Segment at 18:33 (count = 3), RegionEntry
-Segment at 20:10 (count = 15), RegionEntry
-Segment at 20:11 (count = 0), Skipped
-Segment at 21:9 (count = 9), RegionEntry
-Segment at 21:23 (count = 0), Skipped
-Segment at 23:5 (count = 0), RegionEntry
-Segment at 24:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.partial_eq.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.partial_eq.txt
deleted file mode 100644
index 329e0f3889a98..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.partial_eq.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-Counter in file 0 4:48 -> 4:49, ((#1 + #2) + ((#3 + #4) + ((#5 + #6) + #7)))
-Counter in file 0 7:5 -> 7:6, #1
-Counter in file 0 21:11 -> 26:2, #1
-Counter in file 0 4:39 -> 4:40, #1
-Counter in file 0 4:48 -> 4:49, (#1 + 0)
-Counter in file 0 7:5 -> 7:6, #1
-Counter in file 0 4:39 -> 4:40, #1
-Counter in file 0 4:48 -> 4:49, (#1 + 0)
-Counter in file 0 4:32 -> 4:33, ((#4 + #5) + #6)
-Counter in file 0 7:5 -> 7:6, #1
-Counter in file 0 4:53 -> 4:54, (#1 + (#2 + (#3 + #4)))
-Counter in file 0 8:5 -> 8:17, #1
-Counter in file 0 13:9 -> 18:6, #1
-Counter in file 0 7:5 -> 7:6, #1
-Counter in file 0 4:39 -> 4:40, #1
-Counter in file 0 4:48 -> 4:49, (#1 + 0)
-Counter in file 0 4:10 -> 4:15, #1
-Counter in file 0 8:5 -> 8:17, #1
-Counter in file 0 4:35 -> 4:37, #1
-Counter in file 0 8:5 -> 8:17, #1
-Counter in file 0 8:5 -> 8:17, #1
-Counter in file 0 4:17 -> 4:22, #1
-Counter in file 0 4:39 -> 4:40, #1
-Counter in file 0 4:48 -> 4:49, (#1 + 0)
-Counter in file 0 4:32 -> 4:33, (#3 + (#1 + #2))
-Emitting segments for file: ../coverage/partial_eq.rs
-Combined regions:
-  4:17 -> 4:22 (count=2)
-  4:39 -> 4:40 (count=1)
-  4:48 -> 4:49 (count=1)
-  7:5 -> 7:6 (count=1)
-  13:9 -> 18:6 (count=2)
-  21:11 -> 26:2 (count=1)
-Segment at 4:17 (count = 2), RegionEntry
-Segment at 4:22 (count = 0), Skipped
-Segment at 4:39 (count = 1), RegionEntry
-Segment at 4:40 (count = 0), Skipped
-Segment at 4:48 (count = 1), RegionEntry
-Segment at 4:49 (count = 0), Skipped
-Segment at 7:5 (count = 1), RegionEntry
-Segment at 7:6 (count = 0), Skipped
-Segment at 13:9 (count = 2), RegionEntry
-Segment at 18:6 (count = 0), Skipped
-Segment at 21:11 (count = 1), RegionEntry
-Segment at 26:2 (count = 0), Skipped
-Emitting segments for function: _RNvXs0_Cs4fqI2P2rA04_10partial_eqNtB5_7VersionNtNtCs7f2nZg1zwMz_4core3cmp10PartialOrd2ltB5_
-Combined regions:
-  4:39 -> 4:40 (count=1)
-  4:48 -> 4:49 (count=1)
-Segment at 4:39 (count = 1), RegionEntry
-Segment at 4:40 (count = 0), Skipped
-Segment at 4:48 (count = 1), RegionEntry
-Segment at 4:49 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.simple_loop.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.simple_loop.txt
deleted file mode 100644
index 6ea09248d65ca..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.simple_loop.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-Counter in file 0 7:9 -> 9:26, #1
-Counter in file 0 12:9 -> 12:16, (#1 + 0)
-Counter in file 0 13:5 -> 18:6, #2
-Counter in file 0 18:6 -> 18:7, (#1 - #2)
-Counter in file 0 23:13 -> 25:14, ((#2 + (#1 - #2)) + #3)
-Counter in file 0 27:13 -> 27:18, (((#2 + (#1 - #2)) + #3) - #3)
-Counter in file 0 30:9 -> 32:10, #3
-Counter in file 0 34:6 -> 34:7, (#2 + (#1 - #2))
-Counter in file 0 35:1 -> 35:2, ((((#2 + (#1 - #2)) + #3) - #3) + 0)
-Emitting segments for file: ../coverage/simple_loop.rs
-Combined regions:
-  7:9 -> 9:26 (count=1)
-  12:9 -> 12:16 (count=1)
-  13:5 -> 18:6 (count=1)
-  18:6 -> 18:7 (count=0)
-  23:13 -> 25:14 (count=11)
-  27:13 -> 27:18 (count=1)
-  30:9 -> 32:10 (count=10)
-  34:6 -> 34:7 (count=1)
-  35:1 -> 35:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
-Segment at 9:26 (count = 0), Skipped
-Segment at 12:9 (count = 1), RegionEntry
-Segment at 12:16 (count = 0), Skipped
-Segment at 13:5 (count = 1), RegionEntry
-Segment at 18:6 (count = 0), RegionEntry
-Segment at 18:7 (count = 0), Skipped
-Segment at 23:13 (count = 11), RegionEntry
-Segment at 25:14 (count = 0), Skipped
-Segment at 27:13 (count = 1), RegionEntry
-Segment at 27:18 (count = 0), Skipped
-Segment at 30:9 (count = 10), RegionEntry
-Segment at 32:10 (count = 0), Skipped
-Segment at 34:6 (count = 1), RegionEntry
-Segment at 34:7 (count = 0), Skipped
-Segment at 35:1 (count = 1), RegionEntry
-Segment at 35:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.simple_match.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.simple_match.txt
deleted file mode 100644
index 1682a379bc0ff..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.simple_match.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Counter in file 0 7:9 -> 9:26, #1
-Counter in file 0 10:8 -> 10:15, (#1 + 0)
-Counter in file 0 10:16 -> 12:6, #2
-Counter in file 0 12:6 -> 12:7, (#1 - #2)
-Counter in file 0 15:9 -> 15:10, (((#2 + (#1 - #2)) + (#3 + #4)) - #5)
-Counter in file 0 17:9 -> 17:13, ((#2 + (#1 - #2)) + (#3 + #4))
-Counter in file 0 22:13 -> 22:22, ((((#2 + (#1 - #2)) + (#3 + #4)) - #5) + 0)
-Counter in file 0 24:13 -> 24:14, #3
-Counter in file 0 26:17 -> 28:18, ((((#2 + (#1 - #2)) + (#3 + #4)) - #5) + 0)
-Counter in file 0 28:18 -> 28:19, ((((#2 + (#1 - #2)) + (#3 + #4)) - #5) - #3)
-Counter in file 0 30:13 -> 37:14, (#3 + 0)
-Counter in file 0 40:13 -> 40:15, #4
-Counter in file 0 42:6 -> 42:7, (#2 + (#1 - #2))
-Counter in file 0 42:6 -> 42:7, (#3 + #4)
-Counter in file 0 43:1 -> 43:2, #5
-Emitting segments for file: ../coverage/simple_match.rs
-Combined regions:
-  7:9 -> 9:26 (count=1)
-  10:8 -> 10:15 (count=1)
-  10:16 -> 12:6 (count=1)
-  12:6 -> 12:7 (count=0)
-  15:9 -> 15:10 (count=2)
-  17:9 -> 17:13 (count=3)
-  22:13 -> 22:22 (count=2)
-  24:13 -> 24:14 (count=1)
-  26:17 -> 28:18 (count=2)
-  28:18 -> 28:19 (count=1)
-  30:13 -> 37:14 (count=1)
-  40:13 -> 40:15 (count=1)
-  42:6 -> 42:7 (count=3)
-  43:1 -> 43:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
-Segment at 9:26 (count = 0), Skipped
-Segment at 10:8 (count = 1), RegionEntry
-Segment at 10:15 (count = 0), Skipped
-Segment at 10:16 (count = 1), RegionEntry
-Segment at 12:6 (count = 0), RegionEntry
-Segment at 12:7 (count = 0), Skipped
-Segment at 15:9 (count = 2), RegionEntry
-Segment at 15:10 (count = 0), Skipped
-Segment at 17:9 (count = 3), RegionEntry
-Segment at 17:13 (count = 0), Skipped
-Segment at 22:13 (count = 2), RegionEntry
-Segment at 22:22 (count = 0), Skipped
-Segment at 24:13 (count = 1), RegionEntry
-Segment at 24:14 (count = 0), Skipped
-Segment at 26:17 (count = 2), RegionEntry
-Segment at 28:18 (count = 1), RegionEntry
-Segment at 28:19 (count = 0), Skipped
-Segment at 30:13 (count = 1), RegionEntry
-Segment at 37:14 (count = 0), Skipped
-Segment at 40:13 (count = 1), RegionEntry
-Segment at 40:15 (count = 0), Skipped
-Segment at 42:6 (count = 3), RegionEntry
-Segment at 42:7 (count = 0), Skipped
-Segment at 43:1 (count = 1), RegionEntry
-Segment at 43:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.tight_inf_loop.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.tight_inf_loop.txt
deleted file mode 100644
index 5887658fe67a2..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.tight_inf_loop.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-Counter in file 0 2:8 -> 2:13, #1
-Counter in file 0 5:1 -> 5:2, (#1 - #2)
-Emitting segments for file: ../coverage/tight_inf_loop.rs
-Combined regions:
-  2:8 -> 2:13 (count=1)
-  5:1 -> 5:2 (count=1)
-Segment at 2:8 (count = 1), RegionEntry
-Segment at 2:13 (count = 0), Skipped
-Segment at 5:1 (count = 1), RegionEntry
-Segment at 5:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.try_error_result.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.try_error_result.txt
deleted file mode 100644
index 5b7f5496af819..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.try_error_result.txt
+++ /dev/null
@@ -1,72 +0,0 @@
-Counter in file 0 13:9 -> 14:23, #1
-Counter in file 0 17:9 -> 17:10, ((#1 + (#2 + #3)) - #4)
-Counter in file 0 19:9 -> 19:14, (#1 + (#2 + #3))
-Counter in file 0 21:9 -> 25:26, (((#1 + (#2 + #3)) - #4) + 0)
-Counter in file 0 27:13 -> 27:41, #8
-Counter in file 0 27:41 -> 27:42, #5
-Counter in file 0 28:13 -> 28:42, (#8 - #5)
-Counter in file 0 28:42 -> 28:43, #6
-Counter in file 0 32:13 -> 32:42, (((#1 + (#2 + #3)) - #4) - #8)
-Counter in file 0 32:42 -> 32:43, #7
-Counter in file 0 33:10 -> 33:11, #2
-Counter in file 0 33:10 -> 33:11, #3
-Counter in file 0 34:6 -> 34:7, (#2 + #3)
-Counter in file 0 35:5 -> 35:11, #4
-Counter in file 0 36:1 -> 36:2, ((#5 + (#6 + #7)) + #4)
-Counter in file 0 5:8 -> 5:20, #1
-Counter in file 0 6:9 -> 6:16, #2
-Counter in file 0 8:9 -> 8:15, (#1 - #2)
-Counter in file 0 10:1 -> 10:2, (#2 + (#1 - #2))
-Emitting segments for file: ../coverage/try_error_result.rs
-Combined regions:
-  5:8 -> 5:20 (count=6)
-  6:9 -> 6:16 (count=1)
-  8:9 -> 8:15 (count=5)
-  10:1 -> 10:2 (count=6)
-  13:9 -> 14:23 (count=1)
-  17:9 -> 17:10 (count=6)
-  19:9 -> 19:14 (count=6)
-  21:9 -> 25:26 (count=6)
-  27:13 -> 27:41 (count=1)
-  27:41 -> 27:42 (count=1)
-  28:13 -> 28:42 (count=0)
-  28:42 -> 28:43 (count=0)
-  32:13 -> 32:42 (count=5)
-  32:42 -> 32:43 (count=0)
-  33:10 -> 33:11 (count=5)
-  34:6 -> 34:7 (count=5)
-  35:5 -> 35:11 (count=0)
-  36:1 -> 36:2 (count=1)
-Segment at 5:8 (count = 6), RegionEntry
-Segment at 5:20 (count = 0), Skipped
-Segment at 6:9 (count = 1), RegionEntry
-Segment at 6:16 (count = 0), Skipped
-Segment at 8:9 (count = 5), RegionEntry
-Segment at 8:15 (count = 0), Skipped
-Segment at 10:1 (count = 6), RegionEntry
-Segment at 10:2 (count = 0), Skipped
-Segment at 13:9 (count = 1), RegionEntry
-Segment at 14:23 (count = 0), Skipped
-Segment at 17:9 (count = 6), RegionEntry
-Segment at 17:10 (count = 0), Skipped
-Segment at 19:9 (count = 6), RegionEntry
-Segment at 19:14 (count = 0), Skipped
-Segment at 21:9 (count = 6), RegionEntry
-Segment at 25:26 (count = 0), Skipped
-Segment at 27:13 (count = 1), RegionEntry
-Segment at 27:41 (count = 1), RegionEntry
-Segment at 27:42 (count = 0), Skipped
-Segment at 28:13 (count = 0), RegionEntry
-Segment at 28:42 (count = 0), RegionEntry
-Segment at 28:43 (count = 0), Skipped
-Segment at 32:13 (count = 5), RegionEntry
-Segment at 32:42 (count = 0), RegionEntry
-Segment at 32:43 (count = 0), Skipped
-Segment at 33:10 (count = 5), RegionEntry
-Segment at 33:11 (count = 0), Skipped
-Segment at 34:6 (count = 5), RegionEntry
-Segment at 34:7 (count = 0), Skipped
-Segment at 35:5 (count = 0), RegionEntry
-Segment at 35:11 (count = 0), Skipped
-Segment at 36:1 (count = 1), RegionEntry
-Segment at 36:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.while.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.while.txt
deleted file mode 100644
index b0e881da7c8cb..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.while.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-Counter in file 0 2:9 -> 2:16, #1
-Counter in file 0 3:11 -> 3:20, (#1 + #2)
-Counter in file 0 3:21 -> 4:6, #2
-Counter in file 0 5:1 -> 5:2, ((#1 + #2) - #2)
-Emitting segments for file: ../coverage/while.rs
-Combined regions:
-  2:9 -> 2:16 (count=1)
-  3:11 -> 3:20 (count=1)
-  3:21 -> 4:6 (count=0)
-  5:1 -> 5:2 (count=1)
-Segment at 2:9 (count = 1), RegionEntry
-Segment at 2:16 (count = 0), Skipped
-Segment at 3:11 (count = 1), RegionEntry
-Segment at 3:20 (count = 0), Skipped
-Segment at 3:21 (count = 0), RegionEntry
-Segment at 4:6 (count = 0), Skipped
-Segment at 5:1 (count = 1), RegionEntry
-Segment at 5:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.while_early_ret.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.while_early_ret.txt
deleted file mode 100644
index 7e79a8f00e1a6..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.while_early_ret.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-Counter in file 0 5:9 -> 5:27, #1
-Counter in file 0 7:9 -> 9:10, (#1 + #2)
-Counter in file 0 12:13 -> 14:14, ((#1 + #2) - #3)
-Counter in file 0 18:21 -> 20:22, (((#1 + #2) - #3) - #2)
-Counter in file 0 22:21 -> 22:27, #4
-Counter in file 0 26:21 -> 26:27, #5
-Counter in file 0 30:9 -> 32:10, #2
-Counter in file 0 35:5 -> 35:11, #3
-Counter in file 0 36:1 -> 36:2, ((#4 + #5) + #3)
-Emitting segments for file: ../coverage/while_early_ret.rs
-Combined regions:
-  5:9 -> 5:27 (count=1)
-  7:9 -> 9:10 (count=7)
-  12:13 -> 14:14 (count=7)
-  18:21 -> 20:22 (count=1)
-  22:21 -> 22:27 (count=0)
-  26:21 -> 26:27 (count=1)
-  30:9 -> 32:10 (count=6)
-  35:5 -> 35:11 (count=0)
-  36:1 -> 36:2 (count=1)
-Segment at 5:9 (count = 1), RegionEntry
-Segment at 5:27 (count = 0), Skipped
-Segment at 7:9 (count = 7), RegionEntry
-Segment at 9:10 (count = 0), Skipped
-Segment at 12:13 (count = 7), RegionEntry
-Segment at 14:14 (count = 0), Skipped
-Segment at 18:21 (count = 1), RegionEntry
-Segment at 20:22 (count = 0), Skipped
-Segment at 22:21 (count = 0), RegionEntry
-Segment at 22:27 (count = 0), Skipped
-Segment at 26:21 (count = 1), RegionEntry
-Segment at 26:27 (count = 0), Skipped
-Segment at 30:9 (count = 6), RegionEntry
-Segment at 32:10 (count = 0), Skipped
-Segment at 35:5 (count = 0), RegionEntry
-Segment at 35:11 (count = 0), Skipped
-Segment at 36:1 (count = 1), RegionEntry
-Segment at 36:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.yield.txt b/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.yield.txt
deleted file mode 100644
index a107535821164..0000000000000
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_show_coverage_counters.yield.txt
+++ /dev/null
@@ -1,90 +0,0 @@
-Counter in file 0 8:9 -> 8:22, #1
-Counter in file 0 13:11 -> 14:35, (#1 + 0)
-Counter in file 0 14:39 -> 14:41, #4
-Counter in file 0 15:14 -> 15:52, (#2 + #3)
-Counter in file 0 17:11 -> 17:46, (#4 + 0)
-Counter in file 0 18:34 -> 18:39, (#4 - #5)
-Counter in file 0 18:44 -> 18:46, ((#4 - #5) - #6)
-Counter in file 0 19:14 -> 19:52, (#5 + #6)
-Counter in file 0 22:9 -> 22:22, (((#4 - #5) - #6) + 0)
-Counter in file 0 29:11 -> 30:35, (((#4 - #5) - #6) + 0)
-Counter in file 0 30:39 -> 30:41, #9
-Counter in file 0 31:14 -> 31:52, (#7 + #8)
-Counter in file 0 33:11 -> 34:35, (#9 + 0)
-Counter in file 0 34:39 -> 34:41, #12
-Counter in file 0 35:14 -> 35:52, (#10 + #11)
-Counter in file 0 37:1 -> 37:2, (#12 + 0)
-Counter in file 0 9:9 -> 9:16, #1
-Counter in file 0 10:16 -> 11:6, #2
-Counter in file 0 23:9 -> 23:16, #1
-Counter in file 0 24:9 -> 24:16, #2
-Counter in file 0 25:9 -> 25:16, #3
-Counter in file 0 26:16 -> 27:6, #4
-Emitting segments for file: ../coverage/yield.rs
-Combined regions:
-  8:9 -> 8:22 (count=1)
-  9:9 -> 9:16 (count=1)
-  10:16 -> 11:6 (count=1)
-  13:11 -> 14:35 (count=1)
-  14:39 -> 14:41 (count=1)
-  15:14 -> 15:52 (count=0)
-  17:11 -> 17:46 (count=1)
-  18:34 -> 18:39 (count=1)
-  18:44 -> 18:46 (count=1)
-  19:14 -> 19:52 (count=0)
-  22:9 -> 22:22 (count=1)
-  23:9 -> 23:16 (count=1)
-  24:9 -> 24:16 (count=1)
-  25:9 -> 25:16 (count=0)
-  26:16 -> 27:6 (count=0)
-  29:11 -> 30:35 (count=1)
-  30:39 -> 30:41 (count=1)
-  31:14 -> 31:52 (count=0)
-  33:11 -> 34:35 (count=1)
-  34:39 -> 34:41 (count=1)
-  35:14 -> 35:52 (count=0)
-  37:1 -> 37:2 (count=1)
-Segment at 8:9 (count = 1), RegionEntry
-Segment at 8:22 (count = 0), Skipped
-Segment at 9:9 (count = 1), RegionEntry
-Segment at 9:16 (count = 0), Skipped
-Segment at 10:16 (count = 1), RegionEntry
-Segment at 11:6 (count = 0), Skipped
-Segment at 13:11 (count = 1), RegionEntry
-Segment at 14:35 (count = 0), Skipped
-Segment at 14:39 (count = 1), RegionEntry
-Segment at 14:41 (count = 0), Skipped
-Segment at 15:14 (count = 0), RegionEntry
-Segment at 15:52 (count = 0), Skipped
-Segment at 17:11 (count = 1), RegionEntry
-Segment at 17:46 (count = 0), Skipped
-Segment at 18:34 (count = 1), RegionEntry
-Segment at 18:39 (count = 0), Skipped
-Segment at 18:44 (count = 1), RegionEntry
-Segment at 18:46 (count = 0), Skipped
-Segment at 19:14 (count = 0), RegionEntry
-Segment at 19:52 (count = 0), Skipped
-Segment at 22:9 (count = 1), RegionEntry
-Segment at 22:22 (count = 0), Skipped
-Segment at 23:9 (count = 1), RegionEntry
-Segment at 23:16 (count = 0), Skipped
-Segment at 24:9 (count = 1), RegionEntry
-Segment at 24:16 (count = 0), Skipped
-Segment at 25:9 (count = 0), RegionEntry
-Segment at 25:16 (count = 0), Skipped
-Segment at 26:16 (count = 0), RegionEntry
-Segment at 27:6 (count = 0), Skipped
-Segment at 29:11 (count = 1), RegionEntry
-Segment at 30:35 (count = 0), Skipped
-Segment at 30:39 (count = 1), RegionEntry
-Segment at 30:41 (count = 0), Skipped
-Segment at 31:14 (count = 0), RegionEntry
-Segment at 31:52 (count = 0), Skipped
-Segment at 33:11 (count = 1), RegionEntry
-Segment at 34:35 (count = 0), Skipped
-Segment at 34:39 (count = 1), RegionEntry
-Segment at 34:41 (count = 0), Skipped
-Segment at 35:14 (count = 0), RegionEntry
-Segment at 35:52 (count = 0), Skipped
-Segment at 37:1 (count = 1), RegionEntry
-Segment at 37:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/Makefile b/src/test/run-make-fulldeps/coverage-reports/Makefile
index 91acedb68ec36..0902ad74051f9 100644
--- a/src/test/run-make-fulldeps/coverage-reports/Makefile
+++ b/src/test/run-make-fulldeps/coverage-reports/Makefile
@@ -4,10 +4,6 @@
 # FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
 # properly. Since we only have GCC on the CI ignore the test for now.
 
-# ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and
-# `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`.
-# See ../coverage/coverage_tools.mk for more information.
-
 -include ../coverage/coverage_tools.mk
 
 BASEDIR=../coverage-reports
@@ -57,8 +53,7 @@ endif
 			$$( grep -q '^\/\/ require-rust-edition-2018' $(SOURCEDIR)/$@.rs && \
 				echo "--edition=2018" \
 			) \
-			-Zinstrument-coverage \
-			-Clink-dead-code=$(LINK_DEAD_CODE)
+			-Zinstrument-coverage
 
 	# Run it in order to generate some profiling data,
 	# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.abort.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.abort.json
index 33cfc9f3ed72c..db7dd0b15e960 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.abort.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.abort.json
@@ -16,15 +16,15 @@
               "percent": 100
             },
             "lines": {
-              "count": 15,
-              "covered": 13,
-              "percent": 86.66666666666667
+              "count": 19,
+              "covered": 17,
+              "percent": 89.47368421052632
             },
             "regions": {
-              "count": 10,
-              "covered": 9,
+              "count": 17,
+              "covered": 16,
               "notcovered": 1,
-              "percent": 90
+              "percent": 94.11764705882352
             }
           }
         }
@@ -41,15 +41,15 @@
           "percent": 100
         },
         "lines": {
-          "count": 15,
-          "covered": 13,
-          "percent": 86.66666666666667
+          "count": 19,
+          "covered": 17,
+          "percent": 89.47368421052632
         },
         "regions": {
-          "count": 10,
-          "covered": 9,
+          "count": 17,
+          "covered": 16,
           "notcovered": 1,
-          "percent": 90
+          "percent": 94.11764705882352
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.assert.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.assert.json
index aa2a0cbebe77e..024b5f11179ac 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.assert.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.assert.json
@@ -16,9 +16,9 @@
               "percent": 100
             },
             "lines": {
-              "count": 13,
-              "covered": 10,
-              "percent": 76.92307692307693
+              "count": 15,
+              "covered": 12,
+              "percent": 80
             },
             "regions": {
               "count": 14,
@@ -41,9 +41,9 @@
           "percent": 100
         },
         "lines": {
-          "count": 13,
-          "covered": 10,
-          "percent": 76.92307692307693
+          "count": 15,
+          "covered": 12,
+          "percent": 80
         },
         "regions": {
           "count": 14,
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.async.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.async.json
index 004bedeea6280..4cc6ea39425e1 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.async.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.async.json
@@ -6,50 +6,50 @@
           "filename": "../coverage/async.rs",
           "summary": {
             "functions": {
-              "count": 9,
-              "covered": 9,
-              "percent": 100
+              "count": 16,
+              "covered": 15,
+              "percent": 93.75
             },
             "instantiations": {
-              "count": 9,
-              "covered": 9,
-              "percent": 100
+              "count": 16,
+              "covered": 15,
+              "percent": 93.75
             },
             "lines": {
-              "count": 31,
-              "covered": 30,
-              "percent": 96.7741935483871
+              "count": 102,
+              "covered": 75,
+              "percent": 73.52941176470588
             },
             "regions": {
-              "count": 21,
-              "covered": 18,
-              "notcovered": 3,
-              "percent": 85.71428571428571
+              "count": 76,
+              "covered": 35,
+              "notcovered": 41,
+              "percent": 46.05263157894737
             }
           }
         }
       ],
       "totals": {
         "functions": {
-          "count": 9,
-          "covered": 9,
-          "percent": 100
+          "count": 16,
+          "covered": 15,
+          "percent": 93.75
         },
         "instantiations": {
-          "count": 9,
-          "covered": 9,
-          "percent": 100
+          "count": 16,
+          "covered": 15,
+          "percent": 93.75
         },
         "lines": {
-          "count": 31,
-          "covered": 30,
-          "percent": 96.7741935483871
+          "count": 102,
+          "covered": 75,
+          "percent": 73.52941176470588
         },
         "regions": {
-          "count": 21,
-          "covered": 18,
-          "notcovered": 3,
-          "percent": 85.71428571428571
+          "count": 76,
+          "covered": 35,
+          "notcovered": 41,
+          "percent": 46.05263157894737
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.closure.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.closure.json
index bff55300b3ca3..39e1dea66f963 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.closure.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.closure.json
@@ -6,50 +6,50 @@
           "filename": "../coverage/closure.rs",
           "summary": {
             "functions": {
-              "count": 5,
-              "covered": 3,
-              "percent": 60
+              "count": 6,
+              "covered": 4,
+              "percent": 66.66666666666666
             },
             "instantiations": {
-              "count": 5,
-              "covered": 3,
-              "percent": 60
+              "count": 6,
+              "covered": 4,
+              "percent": 66.66666666666666
             },
             "lines": {
-              "count": 91,
-              "covered": 77,
-              "percent": 84.61538461538461
+              "count": 161,
+              "covered": 131,
+              "percent": 81.36645962732919
             },
             "regions": {
-              "count": 25,
-              "covered": 13,
-              "notcovered": 12,
-              "percent": 52
+              "count": 42,
+              "covered": 22,
+              "notcovered": 20,
+              "percent": 52.38095238095239
             }
           }
         }
       ],
       "totals": {
         "functions": {
-          "count": 5,
-          "covered": 3,
-          "percent": 60
+          "count": 6,
+          "covered": 4,
+          "percent": 66.66666666666666
         },
         "instantiations": {
-          "count": 5,
-          "covered": 3,
-          "percent": 60
+          "count": 6,
+          "covered": 4,
+          "percent": 66.66666666666666
         },
         "lines": {
-          "count": 91,
-          "covered": 77,
-          "percent": 84.61538461538461
+          "count": 161,
+          "covered": 131,
+          "percent": 81.36645962732919
         },
         "regions": {
-          "count": 25,
-          "covered": 13,
-          "notcovered": 12,
-          "percent": 52
+          "count": 42,
+          "covered": 22,
+          "notcovered": 20,
+          "percent": 52.38095238095239
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.conditions.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.conditions.json
index d69ca80839a30..69356604856b6 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.conditions.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.conditions.json
@@ -21,10 +21,10 @@
               "percent": 51.5625
             },
             "regions": {
-              "count": 88,
-              "covered": 25,
-              "notcovered": 63,
-              "percent": 28.40909090909091
+              "count": 64,
+              "covered": 21,
+              "notcovered": 43,
+              "percent": 32.8125
             }
           }
         }
@@ -46,10 +46,10 @@
           "percent": 51.5625
         },
         "regions": {
-          "count": 88,
-          "covered": 25,
-          "notcovered": 63,
-          "percent": 28.40909090909091
+          "count": 64,
+          "covered": 21,
+          "notcovered": 43,
+          "percent": 32.8125
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.loop_break_value.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.dead_code.json
similarity index 52%
rename from src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.loop_break_value.json
rename to src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.dead_code.json
index 6cb1465c81873..6588ba90274ad 100644
--- a/src/test/run-make-fulldeps/coverage-reports-deadcode/expected_export_coverage.loop_break_value.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.dead_code.json
@@ -3,28 +3,28 @@
     {
       "files": [
         {
-          "filename": "../coverage/loop_break_value.rs",
+          "filename": "../coverage/dead_code.rs",
           "summary": {
             "functions": {
               "count": 1,
-              "covered": 1,
-              "percent": 100
+              "covered": 0,
+              "percent": 0
             },
             "instantiations": {
               "count": 1,
-              "covered": 1,
-              "percent": 100
+              "covered": 0,
+              "percent": 0
             },
             "lines": {
-              "count": 11,
+              "count": 33,
               "covered": 11,
-              "percent": 100
+              "percent": 33.33333333333333
             },
             "regions": {
-              "count": 1,
-              "covered": 1,
-              "notcovered": 0,
-              "percent": 100
+              "count": 12,
+              "covered": 3,
+              "notcovered": 9,
+              "percent": 25
             }
           }
         }
@@ -32,24 +32,24 @@
       "totals": {
         "functions": {
           "count": 1,
-          "covered": 1,
-          "percent": 100
+          "covered": 0,
+          "percent": 0
         },
         "instantiations": {
           "count": 1,
-          "covered": 1,
-          "percent": 100
+          "covered": 0,
+          "percent": 0
         },
         "lines": {
-          "count": 11,
+          "count": 33,
           "covered": 11,
-          "percent": 100
+          "percent": 33.33333333333333
         },
         "regions": {
-          "count": 1,
-          "covered": 1,
-          "notcovered": 0,
-          "percent": 100
+          "count": 12,
+          "covered": 3,
+          "notcovered": 9,
+          "percent": 25
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.drop_trait.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.drop_trait.json
index bd2e2d56d4a55..e303d3802f519 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.drop_trait.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.drop_trait.json
@@ -16,13 +16,13 @@
               "percent": 100
             },
             "lines": {
-              "count": 10,
-              "covered": 10,
+              "count": 12,
+              "covered": 12,
               "percent": 100
             },
             "regions": {
-              "count": 5,
-              "covered": 5,
+              "count": 4,
+              "covered": 4,
               "notcovered": 0,
               "percent": 100
             }
@@ -41,13 +41,13 @@
           "percent": 100
         },
         "lines": {
-          "count": 10,
-          "covered": 10,
+          "count": 12,
+          "covered": 12,
           "percent": 100
         },
         "regions": {
-          "count": 5,
-          "covered": 5,
+          "count": 4,
+          "covered": 4,
           "notcovered": 0,
           "percent": 100
         }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.generics.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.generics.json
index a50f4657e20aa..bfae69d7ac4dc 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.generics.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.generics.json
@@ -16,13 +16,13 @@
               "percent": 100
             },
             "lines": {
-              "count": 16,
-              "covered": 16,
+              "count": 18,
+              "covered": 18,
               "percent": 100
             },
             "regions": {
-              "count": 6,
-              "covered": 6,
+              "count": 5,
+              "covered": 5,
               "notcovered": 0,
               "percent": 100
             }
@@ -41,13 +41,13 @@
           "percent": 100
         },
         "lines": {
-          "count": 16,
-          "covered": 16,
+          "count": 18,
+          "covered": 18,
           "percent": 100
         },
         "regions": {
-          "count": 6,
-          "covered": 6,
+          "count": 5,
+          "covered": 5,
           "notcovered": 0,
           "percent": 100
         }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.if.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.if.json
index 84dcc251f3f4b..8f233f8bfc548 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.if.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.if.json
@@ -16,15 +16,15 @@
               "percent": 100
             },
             "lines": {
-              "count": 19,
-              "covered": 19,
+              "count": 26,
+              "covered": 26,
               "percent": 100
             },
             "regions": {
-              "count": 5,
-              "covered": 4,
+              "count": 4,
+              "covered": 3,
               "notcovered": 1,
-              "percent": 80
+              "percent": 75
             }
           }
         }
@@ -41,15 +41,15 @@
           "percent": 100
         },
         "lines": {
-          "count": 19,
-          "covered": 19,
+          "count": 26,
+          "covered": 26,
           "percent": 100
         },
         "regions": {
-          "count": 5,
-          "covered": 4,
+          "count": 4,
+          "covered": 3,
           "notcovered": 1,
-          "percent": 80
+          "percent": 75
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.if_else.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.if_else.json
index 36f81ceae19bf..5c0454e1ecbc2 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.if_else.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.if_else.json
@@ -16,9 +16,9 @@
               "percent": 100
             },
             "lines": {
-              "count": 28,
-              "covered": 19,
-              "percent": 67.85714285714286
+              "count": 32,
+              "covered": 23,
+              "percent": 71.875
             },
             "regions": {
               "count": 7,
@@ -41,9 +41,9 @@
           "percent": 100
         },
         "lines": {
-          "count": 28,
-          "covered": 19,
-          "percent": 67.85714285714286
+          "count": 32,
+          "covered": 23,
+          "percent": 71.875
         },
         "regions": {
           "count": 7,
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.inner_items.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.inner_items.json
index 5dc82d2168ccd..07ef9a9ab3348 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.inner_items.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.inner_items.json
@@ -16,8 +16,8 @@
               "percent": 100
             },
             "lines": {
-              "count": 27,
-              "covered": 27,
+              "count": 29,
+              "covered": 29,
               "percent": 100
             },
             "regions": {
@@ -41,8 +41,8 @@
           "percent": 100
         },
         "lines": {
-          "count": 27,
-          "covered": 27,
+          "count": 29,
+          "covered": 29,
           "percent": 100
         },
         "regions": {
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.lazy_boolean.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.lazy_boolean.json
index 5a953b90b423f..c3a96b08e6a2a 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.lazy_boolean.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.lazy_boolean.json
@@ -16,15 +16,15 @@
               "percent": 100
             },
             "lines": {
-              "count": 40,
-              "covered": 30,
+              "count": 44,
+              "covered": 33,
               "percent": 75
             },
             "regions": {
-              "count": 37,
-              "covered": 26,
-              "notcovered": 11,
-              "percent": 70.27027027027027
+              "count": 28,
+              "covered": 21,
+              "notcovered": 7,
+              "percent": 75
             }
           }
         }
@@ -41,15 +41,15 @@
           "percent": 100
         },
         "lines": {
-          "count": 40,
-          "covered": 30,
+          "count": 44,
+          "covered": 33,
           "percent": 75
         },
         "regions": {
-          "count": 37,
-          "covered": 26,
-          "notcovered": 11,
-          "percent": 70.27027027027027
+          "count": 28,
+          "covered": 21,
+          "notcovered": 7,
+          "percent": 75
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.loops_branches.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.loops_branches.json
index 2dca41df9d24e..6d566f2b818c8 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.loops_branches.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.loops_branches.json
@@ -21,10 +21,10 @@
               "percent": 100
             },
             "regions": {
-              "count": 9,
-              "covered": 8,
+              "count": 8,
+              "covered": 7,
               "notcovered": 1,
-              "percent": 88.88888888888889
+              "percent": 87.5
             }
           }
         }
@@ -46,10 +46,10 @@
           "percent": 100
         },
         "regions": {
-          "count": 9,
-          "covered": 8,
+          "count": 8,
+          "covered": 7,
           "notcovered": 1,
-          "percent": 88.88888888888889
+          "percent": 87.5
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.nested_loops.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.nested_loops.json
index ce3c957e660c5..bf3b5cb031b92 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.nested_loops.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.nested_loops.json
@@ -17,14 +17,14 @@
             },
             "lines": {
               "count": 22,
-              "covered": 16,
-              "percent": 72.72727272727273
+              "covered": 17,
+              "percent": 77.27272727272727
             },
             "regions": {
-              "count": 17,
-              "covered": 13,
-              "notcovered": 4,
-              "percent": 76.47058823529412
+              "count": 14,
+              "covered": 11,
+              "notcovered": 3,
+              "percent": 78.57142857142857
             }
           }
         }
@@ -42,14 +42,14 @@
         },
         "lines": {
           "count": 22,
-          "covered": 16,
-          "percent": 72.72727272727273
+          "covered": 17,
+          "percent": 77.27272727272727
         },
         "regions": {
-          "count": 17,
-          "covered": 13,
-          "notcovered": 4,
-          "percent": 76.47058823529412
+          "count": 14,
+          "covered": 11,
+          "notcovered": 3,
+          "percent": 78.57142857142857
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.overflow.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.overflow.json
index 176bfd7abebac..030d7b033f009 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.overflow.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.overflow.json
@@ -16,15 +16,15 @@
               "percent": 100
             },
             "lines": {
-              "count": 21,
-              "covered": 17,
-              "percent": 80.95238095238095
+              "count": 23,
+              "covered": 19,
+              "percent": 82.6086956521739
             },
             "regions": {
-              "count": 14,
-              "covered": 12,
+              "count": 13,
+              "covered": 11,
               "notcovered": 2,
-              "percent": 85.71428571428571
+              "percent": 84.61538461538461
             }
           }
         }
@@ -41,15 +41,15 @@
           "percent": 100
         },
         "lines": {
-          "count": 21,
-          "covered": 17,
-          "percent": 80.95238095238095
+          "count": 23,
+          "covered": 19,
+          "percent": 82.6086956521739
         },
         "regions": {
-          "count": 14,
-          "covered": 12,
+          "count": 13,
+          "covered": 11,
           "notcovered": 2,
-          "percent": 85.71428571428571
+          "percent": 84.61538461538461
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.panic_unwind.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.panic_unwind.json
index 5b13109dbe6b2..b1d44fdfeac54 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.panic_unwind.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.panic_unwind.json
@@ -16,9 +16,9 @@
               "percent": 100
             },
             "lines": {
-              "count": 17,
-              "covered": 14,
-              "percent": 82.35294117647058
+              "count": 19,
+              "covered": 16,
+              "percent": 84.21052631578947
             },
             "regions": {
               "count": 13,
@@ -41,9 +41,9 @@
           "percent": 100
         },
         "lines": {
-          "count": 17,
-          "covered": 14,
-          "percent": 82.35294117647058
+          "count": 19,
+          "covered": 16,
+          "percent": 84.21052631578947
         },
         "regions": {
           "count": 13,
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.partial_eq.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.partial_eq.json
index a7b98247b6631..6a0d83a6d0e44 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.partial_eq.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.partial_eq.json
@@ -7,24 +7,24 @@
           "summary": {
             "functions": {
               "count": 5,
-              "covered": 5,
-              "percent": 100
+              "covered": 4,
+              "percent": 80
             },
             "instantiations": {
               "count": 5,
-              "covered": 5,
-              "percent": 100
+              "covered": 4,
+              "percent": 80
             },
             "lines": {
-              "count": 15,
-              "covered": 15,
-              "percent": 100
+              "count": 18,
+              "covered": 16,
+              "percent": 88.88888888888889
             },
             "regions": {
-              "count": 6,
-              "covered": 6,
-              "notcovered": 0,
-              "percent": 100
+              "count": 24,
+              "covered": 5,
+              "notcovered": 19,
+              "percent": 20.833333333333336
             }
           }
         }
@@ -32,24 +32,24 @@
       "totals": {
         "functions": {
           "count": 5,
-          "covered": 5,
-          "percent": 100
+          "covered": 4,
+          "percent": 80
         },
         "instantiations": {
           "count": 5,
-          "covered": 5,
-          "percent": 100
+          "covered": 4,
+          "percent": 80
         },
         "lines": {
-          "count": 15,
-          "covered": 15,
-          "percent": 100
+          "count": 18,
+          "covered": 16,
+          "percent": 88.88888888888889
         },
         "regions": {
-          "count": 6,
-          "covered": 6,
-          "notcovered": 0,
-          "percent": 100
+          "count": 24,
+          "covered": 5,
+          "notcovered": 19,
+          "percent": 20.833333333333336
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.simple_loop.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.simple_loop.json
index ada6bb062dd1e..4c849692a034c 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.simple_loop.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.simple_loop.json
@@ -16,15 +16,15 @@
               "percent": 100
             },
             "lines": {
-              "count": 19,
-              "covered": 19,
+              "count": 25,
+              "covered": 25,
               "percent": 100
             },
             "regions": {
-              "count": 9,
-              "covered": 8,
+              "count": 7,
+              "covered": 6,
               "notcovered": 1,
-              "percent": 88.88888888888889
+              "percent": 85.71428571428571
             }
           }
         }
@@ -41,15 +41,15 @@
           "percent": 100
         },
         "lines": {
-          "count": 19,
-          "covered": 19,
+          "count": 25,
+          "covered": 25,
           "percent": 100
         },
         "regions": {
-          "count": 9,
-          "covered": 8,
+          "count": 7,
+          "covered": 6,
           "notcovered": 1,
-          "percent": 88.88888888888889
+          "percent": 85.71428571428571
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.simple_match.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.simple_match.json
index 63d1ae74c5f5d..41bc4d57d59f4 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.simple_match.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.simple_match.json
@@ -16,15 +16,15 @@
               "percent": 100
             },
             "lines": {
-              "count": 24,
-              "covered": 24,
+              "count": 27,
+              "covered": 27,
               "percent": 100
             },
             "regions": {
-              "count": 15,
-              "covered": 14,
+              "count": 11,
+              "covered": 10,
               "notcovered": 1,
-              "percent": 93.33333333333333
+              "percent": 90.9090909090909
             }
           }
         }
@@ -41,15 +41,15 @@
           "percent": 100
         },
         "lines": {
-          "count": 24,
-          "covered": 24,
+          "count": 27,
+          "covered": 27,
           "percent": 100
         },
         "regions": {
-          "count": 15,
-          "covered": 14,
+          "count": 11,
+          "covered": 10,
           "notcovered": 1,
-          "percent": 93.33333333333333
+          "percent": 90.9090909090909
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.tight_inf_loop.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.tight_inf_loop.json
index 872560384eb90..7f6c90b92d296 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.tight_inf_loop.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.tight_inf_loop.json
@@ -16,8 +16,8 @@
               "percent": 100
             },
             "lines": {
-              "count": 2,
-              "covered": 2,
+              "count": 4,
+              "covered": 4,
               "percent": 100
             },
             "regions": {
@@ -41,8 +41,8 @@
           "percent": 100
         },
         "lines": {
-          "count": 2,
-          "covered": 2,
+          "count": 4,
+          "covered": 4,
           "percent": 100
         },
         "regions": {
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.try_error_result.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.try_error_result.json
index 78b935b15689a..df4de9dc54bdc 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.try_error_result.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.try_error_result.json
@@ -21,10 +21,10 @@
               "percent": 90
             },
             "regions": {
-              "count": 19,
-              "covered": 14,
-              "notcovered": 5,
-              "percent": 73.68421052631578
+              "count": 16,
+              "covered": 12,
+              "notcovered": 4,
+              "percent": 75
             }
           }
         }
@@ -46,10 +46,10 @@
           "percent": 90
         },
         "regions": {
-          "count": 19,
-          "covered": 14,
-          "notcovered": 5,
-          "percent": 73.68421052631578
+          "count": 16,
+          "covered": 12,
+          "notcovered": 4,
+          "percent": 75
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.while.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.while.json
index 339c65556682a..339c533ada6dc 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.while.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.while.json
@@ -16,9 +16,9 @@
               "percent": 100
             },
             "lines": {
-              "count": 4,
-              "covered": 3,
-              "percent": 75
+              "count": 5,
+              "covered": 4,
+              "percent": 80
             },
             "regions": {
               "count": 4,
@@ -41,9 +41,9 @@
           "percent": 100
         },
         "lines": {
-          "count": 4,
-          "covered": 3,
-          "percent": 75
+          "count": 5,
+          "covered": 4,
+          "percent": 80
         },
         "regions": {
           "count": 4,
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.while_early_ret.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.while_early_ret.json
index ad43f5d992630..b7fe2a0fb47df 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.while_early_ret.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.while_early_ret.json
@@ -16,9 +16,9 @@
               "percent": 100
             },
             "lines": {
-              "count": 17,
-              "covered": 15,
-              "percent": 88.23529411764706
+              "count": 19,
+              "covered": 17,
+              "percent": 89.47368421052632
             },
             "regions": {
               "count": 9,
@@ -41,9 +41,9 @@
           "percent": 100
         },
         "lines": {
-          "count": 17,
-          "covered": 15,
-          "percent": 88.23529411764706
+          "count": 19,
+          "covered": 17,
+          "percent": 89.47368421052632
         },
         "regions": {
           "count": 9,
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.yield.json b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.yield.json
index 9f25bc971c558..6fc41212bc091 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.yield.json
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_export_coverage.yield.json
@@ -16,15 +16,15 @@
               "percent": 100
             },
             "lines": {
-              "count": 23,
-              "covered": 16,
-              "percent": 69.56521739130434
+              "count": 26,
+              "covered": 19,
+              "percent": 73.07692307692307
             },
             "regions": {
-              "count": 22,
-              "covered": 16,
+              "count": 23,
+              "covered": 17,
               "notcovered": 6,
-              "percent": 72.72727272727273
+              "percent": 73.91304347826086
             }
           }
         }
@@ -41,15 +41,15 @@
           "percent": 100
         },
         "lines": {
-          "count": 23,
-          "covered": 16,
-          "percent": 69.56521739130434
+          "count": 26,
+          "covered": 19,
+          "percent": 73.07692307692307
         },
         "regions": {
-          "count": 22,
-          "covered": 16,
+          "count": 23,
+          "covered": 17,
           "notcovered": 6,
-          "percent": 72.72727272727273
+          "percent": 73.91304347826086
         }
       }
     }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.abort.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.abort.txt
index 40c9c71a2aad4..3b5d5eb422702 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.abort.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.abort.txt
@@ -2,34 +2,69 @@
     2|       |#![allow(unused_assignments)]
     3|       |
     4|       |#[unwind(aborts)]
-    5|       |fn might_abort(should_abort: bool) {
-    6|      4|    if should_abort {
+    5|     12|fn might_abort(should_abort: bool) {
+    6|     12|    if should_abort {
     7|      0|        println!("aborting...");
     8|      0|        panic!("panics and aborts");
-    9|      4|    } else {
-   10|      4|        println!("Don't Panic");
-   11|      4|    }
-   12|      4|}
+    9|     12|    } else {
+   10|     12|        println!("Don't Panic");
+   11|     12|    }
+   12|     12|}
    13|       |
-   14|       |fn main() -> Result<(),u8> {
+   14|      1|fn main() -> Result<(), u8> {
    15|      1|    let mut countdown = 10;
    16|     11|    while countdown > 0 {
    17|     10|        if countdown < 5 {
    18|      4|            might_abort(false);
    19|      6|        }
-   20|     10|        countdown -= 1;
-   21|       |    }
-   22|      1|    Ok(())
-   23|      1|}
-   24|       |
-   25|       |// Notes:
-   26|       |//   1. Compare this program and its coverage results to those of the similar tests
-   27|       |//      `panic_unwind.rs` and `try_error_result.rs`.
-   28|       |//   2. This test confirms the coverage generated when a program includes `TerminatorKind::Abort`.
-   29|       |//   3. The test does not invoke the abort. By executing to a successful completion, the coverage
-   30|       |//      results show where the program did and did not execute.
-   31|       |//   4. If the program actually aborted, the coverage counters would not be saved (which "works as
-   32|       |//      intended"). Coverage results would show no executed coverage regions.
-   33|       |//   6. If `should_abort` is `true` and the program aborts, the program exits with a `132` status
-   34|       |//      (on Linux at least).
+   20|       |        // See discussion (below the `Notes` section) on coverage results for the closing brace.
+   21|     10|        if countdown < 5 { might_abort(false); } // Counts for different regions on one line.
+                                       ^4                     ^6
+   22|       |        // For the following example, the closing brace is the last character on the line.
+   23|       |        // This shows the character after the closing brace is highlighted, even if that next
+   24|       |        // character is a newline.
+   25|     10|        if countdown < 5 { might_abort(false); }
+                                       ^4                     ^6
+   26|     10|        countdown -= 1;
+   27|       |    }
+   28|      1|    Ok(())
+   29|      1|}
+   30|       |
+   31|       |// Notes:
+   32|       |//   1. Compare this program and its coverage results to those of the similar tests
+   33|       |//      `panic_unwind.rs` and `try_error_result.rs`.
+   34|       |//   2. This test confirms the coverage generated when a program includes `TerminatorKind::Abort`.
+   35|       |//   3. The test does not invoke the abort. By executing to a successful completion, the coverage
+   36|       |//      results show where the program did and did not execute.
+   37|       |//   4. If the program actually aborted, the coverage counters would not be saved (which "works as
+   38|       |//      intended"). Coverage results would show no executed coverage regions.
+   39|       |//   6. If `should_abort` is `true` and the program aborts, the program exits with a `132` status
+   40|       |//      (on Linux at least).
+   41|       |
+   42|       |/*
+   43|       |
+   44|       |Expect the following coverage results:
+   45|       |
+   46|       |```text
+   47|       |    16|     11|    while countdown > 0 {
+   48|       |    17|     10|        if countdown < 5 {
+   49|       |    18|      4|            might_abort(false);
+   50|       |    19|      6|        }
+   51|       |```
+   52|       |
+   53|       |This is actually correct.
+   54|       |
+   55|       |The condition `countdown < 5` executed 10 times (10 loop iterations).
+   56|       |
+   57|       |It evaluated to `true` 4 times, and executed the `might_abort()` call.
+   58|       |
+   59|       |It skipped the body of the `might_abort()` call 6 times. If an `if` does not include an explicit
+   60|       |`else`, the coverage implementation injects a counter, at the character immediately after the `if`s
+   61|       |closing brace, to count the "implicit" `else`. This is the only way to capture the coverage of the
+   62|       |non-true condition.
+   63|       |
+   64|       |As another example of why this is important, say the condition was `countdown < 50`, which is always
+   65|       |`true`. In that case, we wouldn't have a test for what happens if `might_abort()` is not called.
+   66|       |The closing brace would have a count of `0`, highlighting the missed coverage.
+   67|       |*/
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.assert.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.assert.txt
index a6efcbabd3522..355b53f7f3b69 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.assert.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.assert.txt
@@ -1,20 +1,20 @@
     1|       |#![allow(unused_assignments)]
     2|       |// expect-exit-status-101
     3|       |
-    4|       |fn might_fail_assert(one_plus_one: u32) {
+    4|      4|fn might_fail_assert(one_plus_one: u32) {
     5|      4|    println!("does 1 + 1 = {}?", one_plus_one);
     6|      4|    assert_eq!(1 + 1, one_plus_one, "the argument was wrong");
                                                   ^1
     7|      3|}
     8|       |
-    9|       |fn main() -> Result<(),u8> {
+    9|      1|fn main() -> Result<(),u8> {
    10|      1|    let mut countdown = 10;
    11|     10|    while countdown > 0 {
    12|     10|        if countdown == 1 {
    13|      0|            might_fail_assert(3);
    14|     10|        } else if countdown < 5 {
    15|      3|            might_fail_assert(2);
-   16|     15|        }
+   16|      6|        }
    17|      9|        countdown -= 1;
    18|       |    }
    19|      0|    Ok(())
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.async.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.async.txt
index b5d99732102d0..f6d02891eea55 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.async.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.async.txt
@@ -2,65 +2,130 @@
     2|       |
     3|       |// require-rust-edition-2018
     4|       |
-    5|      1|async fn f() -> u8 { 1 }
-    6|       |
-    7|       |async fn foo() -> [bool; 10] { [false; 10] }
-    8|       |
-    9|       |pub async fn g(x: u8) {
-   10|       |    match x {
-   11|       |        y if f().await == y => (),
-   12|       |        _ => (),
-   13|       |    }
-   14|      1|}
-   15|       |
-   16|       |// #78366: check the reference to the binding is recorded even if the binding is not autorefed
-   17|       |
-   18|       |async fn h(x: usize) {
-   19|       |    match x {
-   20|       |        y if foo().await[y] => (),
-   21|       |        _ => (),
-   22|       |    }
-   23|      1|}
-   24|       |
-   25|      1|async fn i(x: u8) {
-   26|      1|    match x {
-   27|      1|        y if f().await == y + 1 => (),
+    5|      1|async fn c(x: u8) -> u8 {
+    6|      1|    if x == 8 {
+    7|      1|        1
+    8|       |    } else {
+    9|      0|        0
+   10|       |    }
+   11|      1|}
+   12|       |
+   13|      0|async fn d() -> u8 { 1 }
+   14|       |
+   15|      0|async fn e() -> u8 { 1 } // unused function; executor does not block on `g()`
+   16|       |
+   17|      1|async fn f() -> u8 { 1 }
+   18|       |
+   19|      0|async fn foo() -> [bool; 10] { [false; 10] } // unused function; executor does not block on `h()`
+   20|       |
+   21|      1|pub async fn g(x: u8) {
+   22|      0|    match x {
+   23|      0|        y if e().await == y => (),
+   24|      0|        y if f().await == y => (),
+   25|      0|        _ => (),
+   26|       |    }
+   27|      0|}
+   28|       |
+   29|      1|async fn h(x: usize) { // The function signature is counted when called, but the body is not
+   30|      0|                       // executed (not awaited) so the open brace has a `0` count (at least when
+   31|      0|                       // displayed with `llvm-cov show` in color-mode).
+   32|      0|    match x {
+   33|      0|        y if foo().await[y] => (),
+   34|      0|        _ => (),
+   35|       |    }
+   36|      0|}
+   37|       |
+   38|      1|async fn i(x: u8) { // line coverage is 1, but there are 2 regions:
+   39|      1|                    // (a) the function signature, counted when the function is called; and
+   40|      1|                    // (b) the open brace for the function body, counted once when the body is
+   41|      1|                    // executed asynchronously.
+   42|      1|    match x {
+   43|      1|        y if c(x).await == y + 1 => { d().await; }
+                      ^0                            ^0
+   44|      1|        y if f().await == y + 1 => (),
                       ^0                         ^0
-   28|      1|        _ => (),
-   29|       |    }
-   30|      2|}
-   31|       |
-   32|      1|fn main() {
-   33|      1|    let _ = g(10);
-   34|      1|    let _ = h(9);
-   35|      1|    let mut future = Box::pin(i(8));
-   36|      1|    executor::block_on(future.as_mut());
-   37|      1|}
-   38|       |
-   39|       |mod executor {
-   40|       |    use core::{
-   41|       |        future::Future,
-   42|       |        pin::Pin,
-   43|       |        task::{Context, Poll, RawWaker, RawWakerVTable, Waker},
-   44|       |    };
-   45|       |
-   46|       |    pub fn block_on<F: Future>(mut future: F) -> F::Output {
-   47|      1|        let mut future = unsafe { Pin::new_unchecked(&mut future) };
-   48|      1|
-   49|      1|        static VTABLE: RawWakerVTable = RawWakerVTable::new(
-   50|      1|            |_| unimplemented!("clone"),
-   51|      1|            |_| unimplemented!("wake"),
-   52|      1|            |_| unimplemented!("wake_by_ref"),
-   53|      1|            |_| (),
-   54|      1|        );
-   55|      1|        let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &VTABLE)) };
-   56|      1|        let mut context = Context::from_waker(&waker);
-   57|       |
-   58|       |        loop {
-   59|      1|            if let Poll::Ready(val) = future.as_mut().poll(&mut context) {
-   60|      1|                break val;
-   61|       |            }
-   62|      0|        }
-   63|      1|    }
-   64|       |}
+   45|      1|        _ => (),
+   46|       |    }
+   47|      1|}
+   48|       |
+   49|      1|fn j(x: u8) {
+   50|      1|    // non-async versions of `c()`, `d()`, and `f()` to make it similar to async `i()`.
+   51|      1|    fn c(x: u8) -> u8 {
+   52|      1|        if x == 8 {
+   53|      1|            1 // This line appears covered, but the 1-character expression span covering the `1`
+                          ^0
+   54|      1|              // is not executed. (`llvm-cov show` displays a `^0` below the `1` ). This is because
+   55|      1|              // `fn j()` executes the open brace for the funciton body, followed by the function's
+   56|      1|              // first executable statement, `match x`. Inner function declarations are not
+   57|      1|              // "visible" to the MIR for `j()`, so the code region counts all lines between the
+   58|      1|              // open brace and the first statement as executed, which is, in a sense, true.
+   59|      1|              // `llvm-cov show` overcomes this kind of situation by showing the actual counts
+   60|      1|              // of the enclosed coverages, (that is, the `1` expression was not executed, and
+   61|      1|              // accurately displays a `0`).
+   62|      1|        } else {
+   63|      1|            0
+   64|      1|        }
+   65|      1|    }
+   66|      1|    fn d() -> u8 { 1 }
+   67|      1|    fn f() -> u8 { 1 }
+   68|      1|    match x {
+   69|      1|        y if c(x) == y + 1 => { d(); }
+                      ^0                    ^0
+   70|      1|        y if f() == y + 1 => (),
+                      ^0                   ^0
+   71|      1|        _ => (),
+   72|       |    }
+   73|      1|}
+   74|       |
+   75|      0|fn k(x: u8) { // unused function
+   76|      0|    match x {
+   77|      0|        1 => (),
+   78|      0|        2 => (),
+   79|      0|        _ => (),
+   80|       |    }
+   81|      0|}
+   82|       |
+   83|      1|fn l(x: u8) {
+   84|      1|    match x {
+   85|      0|        1 => (),
+   86|      0|        2 => (),
+   87|      1|        _ => (),
+   88|       |    }
+   89|      1|}
+   90|       |
+   91|      1|fn main() {
+   92|      1|    let _ = g(10);
+   93|      1|    let _ = h(9);
+   94|      1|    let mut future = Box::pin(i(8));
+   95|      1|    j(7);
+   96|      1|    l(6);
+   97|      1|    executor::block_on(future.as_mut());
+   98|      1|}
+   99|       |
+  100|       |mod executor {
+  101|       |    use core::{
+  102|       |        future::Future,
+  103|       |        pin::Pin,
+  104|       |        task::{Context, Poll, RawWaker, RawWakerVTable, Waker},
+  105|       |    };
+  106|       |
+  107|      1|    pub fn block_on<F: Future>(mut future: F) -> F::Output {
+  108|      1|        let mut future = unsafe { Pin::new_unchecked(&mut future) };
+  109|      1|
+  110|      1|        static VTABLE: RawWakerVTable = RawWakerVTable::new(
+  111|      1|            |_| unimplemented!("clone"),
+  112|      1|            |_| unimplemented!("wake"),
+  113|      1|            |_| unimplemented!("wake_by_ref"),
+  114|      1|            |_| (),
+  115|      1|        );
+  116|      1|        let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &VTABLE)) };
+  117|      1|        let mut context = Context::from_waker(&waker);
+  118|       |
+  119|       |        loop {
+  120|      1|            if let Poll::Ready(val) = future.as_mut().poll(&mut context) {
+  121|      1|                break val;
+  122|      0|            }
+  123|       |        }
+  124|      1|    }
+  125|       |}
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.closure.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.closure.txt
index aef26a62e25fb..7261cf0a3b0da 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.closure.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.closure.txt
@@ -16,7 +16,7 @@
    16|      1|            unwrap_or_else
    17|      1|        (
    18|      1|            ||
-   19|       |            {
+   19|      0|            {
    20|      0|                let mut countdown = 0;
    21|      0|                if is_false {
    22|      0|                    countdown = 10;
@@ -31,7 +31,7 @@
    31|      1|        a
    32|      1|    =
    33|      1|        ||
-   34|       |    {
+   34|      0|    {
    35|      0|        let mut countdown = 0;
    36|      0|        if is_false {
    37|      0|            countdown = 10;
@@ -58,7 +58,7 @@
    58|      1|            unwrap_or_else
    59|      1|        (
    60|      1|            ||
-   61|       |            {
+   61|      1|            {
    62|      1|                let mut countdown = 0;
    63|      1|                if is_false {
    64|      0|                    countdown = 10;
@@ -73,7 +73,7 @@
    73|      1|        a
    74|      1|    =
    75|      1|        ||
-   76|       |    {
+   76|      1|    {
    77|      1|        let mut countdown = 0;
    78|      1|        if is_false {
    79|      0|            countdown = 10;
@@ -90,5 +90,71 @@
    90|      1|            a
    91|      1|        )
    92|      1|    );
-   93|      1|}
+   93|      1|
+   94|      1|    let
+   95|      1|        quote_closure
+   96|      1|    =
+   97|      1|        |val|
+   98|      5|    {
+   99|      5|        let mut countdown = 0;
+  100|      5|        if is_false {
+  101|      0|            countdown = 10;
+  102|      5|        }
+  103|      5|        format!("'{}'", val)
+  104|      5|    };
+  105|      1|    println!(
+  106|      1|        "Repeated, quoted string: {:?}"
+  107|      1|        ,
+  108|      1|        std::iter::repeat("repeat me")
+  109|      1|            .take(5)
+  110|      1|            .map
+  111|      1|        (
+  112|      1|            quote_closure
+  113|      1|        )
+  114|      1|            .collect::<Vec<_>>()
+  115|      1|    );
+  116|      1|
+  117|      1|    let
+  118|      1|        _unused_closure
+  119|      1|    =
+  120|      1|        |
+  121|       |            mut countdown
+  122|       |        |
+  123|      0|    {
+  124|      0|        if is_false {
+  125|      0|            countdown = 10;
+  126|      0|        }
+  127|      0|        "closure should be unused".to_owned()
+  128|      1|    };
+  129|      1|
+  130|      1|    let mut countdown = 10;
+  131|      1|    let _short_unused_closure = | _unused_arg: u8 | countdown += 1;
+                                                                  ^0
+  132|      1|
+  133|      1|    // Macros can sometimes confuse the coverage results. Compare this next assignment, with an
+  134|      1|    // unused closure that invokes the `println!()` macro, with the closure assignment above, that
+  135|      1|    // does not use a macro. The closure above correctly shows `0` executions.
+  136|      1|    let _short_unused_closure = | _unused_arg: u8 | println!("not called");
+  137|      1|    // The closure assignment above is executed, with a line count of `1`, but the `println!()`
+  138|      1|    // could not have been called, and yet, there is no indication that it wasn't...
+  139|      1|
+  140|      1|    // ...but adding block braces gives the expected result, showing the block was not executed.
+  141|      1|    let _short_unused_closure_block = | _unused_arg: u8 | { println!("not called") };
+                                                                        ^0
+  142|      1|
+  143|      1|    let _shortish_unused_closure = | _unused_arg: u8 | {
+  144|      0|        println!("not called")
+  145|      1|    };
+  146|      1|
+  147|      1|    let _as_short_unused_closure = |
+  148|       |        _unused_arg: u8
+  149|      1|    | { println!("not called") };
+                    ^0
+  150|      1|
+  151|      1|    let _almost_as_short_unused_closure = |
+  152|       |        _unused_arg: u8
+  153|      1|    | { println!("not called") }
+                    ^0
+  154|      1|    ;
+  155|      1|}
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.conditions.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.conditions.txt
index e55a574c056b8..656a26597759d 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.conditions.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.conditions.txt
@@ -1,6 +1,6 @@
     1|       |#![allow(unused_assignments, unused_variables)]
     2|       |
-    3|       |fn main() {
+    3|      1|fn main() {
     4|      1|    let mut countdown = 0;
     5|      1|    if true {
     6|      1|        countdown = 10;
@@ -38,69 +38,53 @@
    37|       |    }
    38|       |
    39|      1|    if true {
-   40|       |        // Demonstrate the difference with `TerminatorKind::Assert` as of 2020-11-15. Assert is no
-   41|       |        // longer treated as a `BasicCoverageBlock` terminator, which changed the coverage region,
-   42|       |        // for the executed `then` block above, to include the closing brace on line 30. That
-   43|       |        // changed the line count, but the coverage code region (for the `else if` condition) is
-   44|       |        // still valid.
-   45|       |        //
-   46|       |        // Note that `if` (then) and `else` blocks include the closing brace in their coverage
-   47|       |        // code regions when the last line in the block ends in a semicolon, because the Rust
-   48|       |        // compiler inserts a `StatementKind::Assign` to assign `const ()` to a `Place`, for the
-   49|       |        // empty value for the executed block. When the last line does not end in a semicolon
-   50|       |        // (that is, when the block actually results in a value), the additional `Assign` is not
-   51|       |        // generated, and the brace is not included.
-   52|      1|        let mut countdown = 0;
-   53|      1|        if true {
-   54|      1|            countdown = 10;
-   55|      1|        }
-   56|       |
-   57|      1|        if countdown > 7 {
-   58|      1|            countdown -= 4;
-   59|      1|        }
-   60|       |        // The closing brace of the `then` branch is now included in the coverage region, and shown
-   61|       |        // as "executed" (giving its line a count of 1 here). Since, in the original version above,
-   62|       |        // the closing brace shares the same line as the `else if` conditional expression (which is
-   63|       |        // not executed if the first `then` condition is true), only the condition's code region is
-   64|       |        // marked with a count of 0 now.
-   65|      0|        else if countdown > 2 {
-   66|      0|            if countdown < 1 || countdown > 5 || countdown != 9 {
-   67|      0|                countdown = 0;
-   68|      0|            }
-   69|      0|            countdown -= 5;
-   70|       |        } else {
-   71|      0|            return;
-   72|       |        }
-   73|      1|    }
-   74|       |
-   75|      1|    let mut countdown = 0;
-   76|      1|    if true {
-   77|      1|        countdown = 1;
-   78|      1|    }
-   79|       |
-   80|      1|    let z = if countdown > 7 {
+   40|      1|        let mut countdown = 0;
+   41|      1|        if true {
+   42|      1|            countdown = 10;
+   43|      1|        }
+   44|       |
+   45|      1|        if countdown > 7 {
+   46|      1|            countdown -= 4;
+   47|      1|        }
+   48|      0|        else if countdown > 2 {
+   49|      0|            if countdown < 1 || countdown > 5 || countdown != 9 {
+   50|      0|                countdown = 0;
+   51|      0|            }
+   52|      0|            countdown -= 5;
+   53|       |        } else {
+   54|      0|            return;
+   55|       |        }
+   56|       |    } // Note: closing brace shows uncovered (vs. `0` for implicit else) because condition literal
+   57|       |      // `true` was const-evaluated. The compiler knows the `if` block will be executed.
+   58|       |
+   59|      1|    let mut countdown = 0;
+   60|      1|    if true {
+   61|      1|        countdown = 1;
+   62|      1|    }
+   63|       |
+   64|      1|    let z = if countdown > 7 {
                       ^0
-   81|      0|        countdown -= 4;
-   82|      1|    } else if countdown > 2 {
-   83|      0|        if countdown < 1 || countdown > 5 || countdown != 9 {
-   84|      0|            countdown = 0;
-   85|      0|        }
-   86|      0|        countdown -= 5;
-   87|       |    } else {
-   88|      1|        let should_be_reachable = countdown;
-   89|      1|        println!("reached");
-   90|      1|        return;
-   91|       |    };
-   92|       |
-   93|      0|    let w = if countdown > 7 {
-   94|      0|        countdown -= 4;
-   95|      0|    } else if countdown > 2 {
-   96|      0|        if countdown < 1 || countdown > 5 || countdown != 9 {
-   97|      0|            countdown = 0;
-   98|      0|        }
-   99|      0|        countdown -= 5;
-  100|       |    } else {
-  101|      0|        return;
-  102|       |    };
-  103|      1|}
+   65|      0|        countdown -= 4;
+   66|      1|    } else if countdown > 2 {
+   67|      0|        if countdown < 1 || countdown > 5 || countdown != 9 {
+   68|      0|            countdown = 0;
+   69|      0|        }
+   70|      0|        countdown -= 5;
+   71|       |    } else {
+   72|      1|        let should_be_reachable = countdown;
+   73|      1|        println!("reached");
+   74|      1|        return;
+   75|       |    };
+   76|       |
+   77|      0|    let w = if countdown > 7 {
+   78|      0|        countdown -= 4;
+   79|      0|    } else if countdown > 2 {
+   80|      0|        if countdown < 1 || countdown > 5 || countdown != 9 {
+   81|      0|            countdown = 0;
+   82|      0|        }
+   83|      0|        countdown -= 5;
+   84|       |    } else {
+   85|      0|        return;
+   86|       |    };
+   87|      1|}
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.dead_code.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.dead_code.txt
new file mode 100644
index 0000000000000..09ff14c6f2722
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.dead_code.txt
@@ -0,0 +1,39 @@
+    1|       |#![allow(unused_assignments, unused_variables)]
+    2|       |
+    3|      0|pub fn unused_pub_fn_not_in_library() {
+    4|      0|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    5|      0|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    6|      0|    // dependent conditions.
+    7|      0|    let is_true = std::env::args().len() == 1;
+    8|      0|
+    9|      0|    let mut countdown = 0;
+   10|      0|    if is_true {
+   11|      0|        countdown = 10;
+   12|      0|    }
+   13|      0|}
+   14|       |
+   15|      0|fn unused_fn() {
+   16|      0|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+   17|      0|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+   18|      0|    // dependent conditions.
+   19|      0|    let is_true = std::env::args().len() == 1;
+   20|      0|
+   21|      0|    let mut countdown = 0;
+   22|      0|    if is_true {
+   23|      0|        countdown = 10;
+   24|      0|    }
+   25|      0|}
+   26|       |
+   27|      1|fn main() {
+   28|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+   29|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+   30|      1|    // dependent conditions.
+   31|      1|    let is_true = std::env::args().len() == 1;
+   32|      1|
+   33|      1|    let mut countdown = 0;
+   34|      1|    if is_true {
+   35|      1|        countdown = 10;
+   36|      1|    }
+                   ^0
+   37|      1|}
+
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.drop_trait.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.drop_trait.txt
index 72aa020ca1691..fab5be41901c9 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.drop_trait.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.drop_trait.txt
@@ -11,11 +11,11 @@
    11|      2|    }
    12|       |}
    13|       |
-   14|       |fn main() -> Result<(),u8> {
+   14|      1|fn main() -> Result<(),u8> {
    15|      1|    let _firecracker = Firework { strength: 1 };
    16|      1|
    17|      1|    let _tnt = Firework { strength: 100 };
-   18|       |
+   18|      1|
    19|      1|    if true {
    20|      1|        println!("Exiting with error...");
    21|      1|        return Err(1);
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.generics.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.generics.txt
index 86199d7476302..7b38ffb87cba8 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.generics.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.generics.txt
@@ -41,27 +41,31 @@
   ------------------
    20|       |}
    21|       |
-   22|       |fn main() -> Result<(),u8> {
+   22|      1|fn main() -> Result<(),u8> {
    23|      1|    let mut firecracker = Firework { strength: 1 };
    24|      1|    firecracker.set_strength(2);
    25|      1|
    26|      1|    let mut tnt = Firework { strength: 100.1 };
    27|      1|    tnt.set_strength(200.1);
    28|      1|    tnt.set_strength(300.3);
-   29|       |
+   29|      1|
    30|      1|    if true {
    31|      1|        println!("Exiting with error...");
    32|      1|        return Err(1);
-   33|       |    }
-   34|       |
-   35|       |    let _ = Firework { strength: 1000 };
-   36|       |
-   37|       |    Ok(())
-   38|      1|}
-   39|       |
-   40|       |// Expected program output:
-   41|       |//   Exiting with error...
-   42|       |//   BOOM times 100!!!
-   43|       |//   BOOM times 1!!!
-   44|       |//   Error: 1
+   33|       |    } // The remaining lines below have no coverage because `if true` (with the constant literal
+   34|       |      // `true`) is guaranteed to execute the `then` block, which is also guaranteed to `return`.
+   35|       |      // Thankfully, in the normal case, conditions are not guaranteed ahead of time, and as shown
+   36|       |      // in other tests, the lines below would have coverage (which would show they had `0`
+   37|       |      // executions, assuming the condition still evaluated to `true`).
+   38|       |
+   39|       |    let _ = Firework { strength: 1000 };
+   40|       |
+   41|       |    Ok(())
+   42|      1|}
+   43|       |
+   44|       |// Expected program output:
+   45|       |//   Exiting with error...
+   46|       |//   BOOM times 100!!!
+   47|       |//   BOOM times 1!!!
+   48|       |//   Error: 1
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.if.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.if.txt
index 85e6440ab3729..0c9eff227ed0c 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.if.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.if.txt
@@ -1,10 +1,10 @@
     1|       |#![allow(unused_assignments, unused_variables)]
     2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
-    7|       |    let
+    3|      1|fn main() {
+    4|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    5|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    6|      1|    // dependent conditions.
+    7|      1|    let
     8|      1|    is_true
     9|      1|    =
    10|      1|        std::env::args().len()
@@ -16,8 +16,8 @@
    16|      1|    countdown
    17|      1|    =
    18|      1|        0
-   19|       |    ;
-   20|       |    if
+   19|      1|    ;
+   20|      1|    if
    21|      1|        is_true
    22|      1|    {
    23|      1|        countdown
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.if_else.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.if_else.txt
index 5f899723e2554..77113ada103e4 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.if_else.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.if_else.txt
@@ -1,9 +1,9 @@
     1|       |#![allow(unused_assignments)]
     2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
+    3|      1|fn main() {
+    4|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    5|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    6|      1|    // dependent conditions.
     7|      1|    let is_true = std::env::args().len() == 1;
     8|      1|
     9|      1|    let mut countdown = 0;
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.inner_items.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.inner_items.txt
index efd9cd4f72d3e..db2a19ac4bf71 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.inner_items.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.inner_items.txt
@@ -1,6 +1,6 @@
     1|       |#![allow(unused_assignments, unused_variables)]
     2|       |
-    3|       |fn main() {
+    3|      1|fn main() {
     4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
     5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
     6|       |    // dependent conditions.
@@ -16,7 +16,7 @@
    15|       |        const IN_MOD_CONST: u32 = 1000;
    16|       |    }
    17|       |
-   18|       |    fn in_func(a: u32) {
+   18|      3|    fn in_func(a: u32) {
    19|      3|        let b = 1;
    20|      3|        let c = a + b;
    21|      3|        println!("c = {}", c)
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.lazy_boolean.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.lazy_boolean.txt
index 1b503033911c5..bd349df2fbce2 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.lazy_boolean.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.lazy_boolean.txt
@@ -1,9 +1,9 @@
     1|       |#![allow(unused_assignments, unused_variables)]
     2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
+    3|      1|fn main() {
+    4|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    5|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    6|      1|    // dependent conditions.
     7|      1|    let is_true = std::env::args().len() == 1;
     8|      1|
     9|      1|    let (mut a, mut b, mut c) = (0, 0, 0);
@@ -18,8 +18,7 @@
    17|       |        =
    18|      1|            a < b
    19|       |        ||
-   20|      1|            b < c
-                          ^0
+   20|      0|            b < c
    21|       |    ;
    22|       |    let
    23|      1|        somebool
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.loops_branches.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.loops_branches.txt
index 3a969a6b89869..135b7b67034f6 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.loops_branches.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.loops_branches.txt
@@ -6,7 +6,7 @@
     6|       |struct DebugTest;
     7|       |
     8|       |impl std::fmt::Debug for DebugTest {
-    9|       |    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+    9|      1|    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
    10|      1|        if true {
    11|      1|            if false {
    12|       |                while true {
@@ -15,7 +15,7 @@
    15|      1|            write!(f, "error")?;
                                             ^0
    16|       |        } else {
-   17|      1|        }
+   17|       |        }
    18|      1|        Ok(())
    19|      1|    }
    20|       |}
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.nested_loops.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.nested_loops.txt
index dd86a85815b3b..0dbd6bcf313e0 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.nested_loops.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.nested_loops.txt
@@ -1,4 +1,4 @@
-    1|       |fn main() {
+    1|      1|fn main() {
     2|      1|    let is_true = std::env::args().len() == 1;
     3|      1|    let mut countdown = 10;
     4|       |
@@ -8,7 +8,7 @@
     8|      3|        for _ in 0..50 {
     9|      3|            if a < 30 {
    10|      0|                break;
-   11|       |            }
+   11|      3|            }
    12|      3|            a -= 5;
    13|      3|            b -= 5;
    14|      3|            if b < 90 {
@@ -19,8 +19,8 @@
    19|      0|                    a -= 2;
    20|      0|                }
    21|      2|            }
-   22|      2|        }
+   22|       |        }
    23|      0|        countdown -= 1;
-   24|      0|    }
+   24|       |    }
    25|      1|}
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.overflow.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.overflow.txt
index 322de1da25a26..4dccb3413eae9 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.overflow.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.overflow.txt
@@ -1,7 +1,7 @@
     1|       |#![allow(unused_assignments)]
     2|       |// expect-exit-status-101
     3|       |
-    4|       |fn might_overflow(to_add: u32) -> u32 {
+    4|      4|fn might_overflow(to_add: u32) -> u32 {
     5|      4|    if to_add > 5 {
     6|      1|        println!("this will probably overflow");
     7|      3|    }
@@ -12,7 +12,7 @@
    12|      4|    result
    13|      4|}
    14|       |
-   15|       |fn main() -> Result<(),u8> {
+   15|      1|fn main() -> Result<(),u8> {
    16|      1|    let mut countdown = 10;
    17|     10|    while countdown > 0 {
    18|     10|        if countdown == 1 {
@@ -21,7 +21,7 @@
    21|     10|        } else if countdown < 5 {
    22|      3|            let result = might_overflow(1);
    23|      3|            println!("Result: {}", result);
-   24|     15|        }
+   24|      6|        }
    25|      9|        countdown -= 1;
    26|       |    }
    27|      0|    Ok(())
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.panic_unwind.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.panic_unwind.txt
index f5149c11b7be0..9ae78fee4b5e1 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.panic_unwind.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.panic_unwind.txt
@@ -1,7 +1,7 @@
     1|       |#![allow(unused_assignments)]
     2|       |// expect-exit-status-101
     3|       |
-    4|       |fn might_panic(should_panic: bool) {
+    4|      4|fn might_panic(should_panic: bool) {
     5|      4|    if should_panic {
     6|      1|        println!("panicking...");
     7|      1|        panic!("panics");
@@ -10,14 +10,14 @@
    10|      3|    }
    11|      3|}
    12|       |
-   13|       |fn main() -> Result<(),u8> {
+   13|      1|fn main() -> Result<(), u8> {
    14|      1|    let mut countdown = 10;
    15|     10|    while countdown > 0 {
    16|     10|        if countdown == 1 {
    17|      0|            might_panic(true);
    18|     10|        } else if countdown < 5 {
    19|      3|            might_panic(false);
-   20|     15|        }
+   20|      6|        }
    21|      9|        countdown -= 1;
    22|       |    }
    23|      0|    Ok(())
@@ -42,9 +42,9 @@
    42|       |//   5. The reason the coverage results actually show `panic!()` was called is most likely because
    43|       |//      `panic!()` is a macro, not a simple function call, and there are other `Statement`s and/or
    44|       |//      `Terminator`s that execute with a coverage counter before the panic and unwind occur.
-   45|       |//   6. By best practice, programs should not panic. By design, the coverage implementation will not
-   46|       |//      incur additional cost (in program size and execution time) to improve coverage results for
-   47|       |//      an event that is not supposted to happen.
+   45|       |//   6. Since the common practice is not to use `panic!()` for error handling, the coverage
+   46|       |//      implementation avoids incurring an additional cost (in program size and execution time) to
+   47|       |//      improve coverage results for an event that is generally not "supposed" to happen.
    48|       |//   7. FIXME(#78544): This issue describes a feature request for a proposed option to enable
    49|       |//      more accurate coverage results for tests that intentionally panic.
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.partial_eq.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.partial_eq.txt
index 310bf13a695af..c05cb36cd02b1 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.partial_eq.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.partial_eq.txt
@@ -2,15 +2,15 @@
     2|       |// structure of this test.
     3|       |
     4|      2|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-                                                    ^1       ^1
+                       ^0            ^0      ^0 ^0  ^1       ^0 ^0^0
     5|       |pub struct Version {
     6|       |    major: usize,
-    7|      1|    minor: usize,
-    8|       |    patch: usize,
+    7|      1|    minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0
+    8|      0|    patch: usize, // Count: 0 - `PartialOrd` was determined by `minor` (2 < 3)
     9|       |}
    10|       |
    11|       |impl Version {
-   12|       |    pub fn new(major: usize, minor: usize, patch: usize) -> Self {
+   12|      2|    pub fn new(major: usize, minor: usize, patch: usize) -> Self {
    13|      2|        Self {
    14|      2|            major,
    15|      2|            minor,
@@ -45,57 +45,4 @@
    44|       |`function_source_hash` without a code region, if necessary.
    45|       |
    46|       |*/
-   47|       |
-   48|       |// FIXME(richkadel): It may be worth investigating why the coverage report for this test produces
-   49|       |// the following results:
-   50|       |
-   51|       |/*
-   52|       |
-   53|       |1. Why are their two counts below different characters (first and last) of `PartialOrd`, on line 17?
-   54|       |
-   55|       |2. Line 17 is counted twice, but the `::lt` instance shows a line count of 1? Is there a missing
-   56|       |   line count with a different instance? Or was it really only called once?
-   57|       |
-   58|       |3. Line 20 shows another line count (of 1) for a line within a `struct` declaration (on only one of
-   59|       |   its 3 fields). I doubt the specific field (`minor`) is relevant, but rather I suspect there's a
-   60|       |   problem computing the file position here, for some reason.
-   61|       |
-   62|       |<snip>
-   63|       |   16|       |
-   64|       |   17|      2|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-   65|       |                                                    ^1       ^1
-   66|       |------------------
-   67|       ||Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::gt
-   68|       |------------------
-   69|       ||Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::le
-   70|       |------------------
-   71|       ||Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::ge
-   72|       |------------------
-   73|       ||<partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::lt:
-   74|       ||  17|      1|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-   75|       |------------------
-   76|       |   18|       |pub struct Version {
-   77|       |   19|       |    major: usize,
-   78|       |   20|      1|    minor: usize,
-   79|       |   21|       |    patch: usize,
-   80|       |   22|       |}
-   81|       |   23|       |
-   82|       |   24|       |impl Version {
-   83|       |   25|       |    pub fn new(major: usize, minor: usize, patch: usize) -> Self {
-   84|       |   26|      2|        Version {
-   85|       |   27|      2|            major,
-   86|       |   28|      2|            minor,
-   87|       |   29|      2|            patch,
-   88|       |   30|      2|        }
-   89|       |   31|      2|    }
-   90|       |   32|       |}
-   91|       |   33|       |
-   92|       |   34|      1|fn main() {
-   93|       |   35|      1|    let version_3_2_1 = Version::new(3, 2, 1);
-   94|       |   36|      1|    let version_3_3_0 = Version::new(3, 3, 0);
-   95|       |   37|      1|
-   96|       |   38|      1|    println!("{:?} < {:?} = {}", version_3_2_1, version_3_3_0, version_3_2_1 < version
-   97|       |_3_3_0);
-   98|       |   39|      1|}
-   99|       |*/
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.simple_loop.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.simple_loop.txt
index 064930dd75c93..feb83bad674d0 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.simple_loop.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.simple_loop.txt
@@ -1,14 +1,14 @@
     1|       |#![allow(unused_assignments)]
     2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
+    3|      1|fn main() {
+    4|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    5|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    6|      1|    // dependent conditions.
     7|      1|    let is_true = std::env::args().len() == 1;
     8|      1|
     9|      1|    let mut countdown = 0;
-   10|       |
-   11|       |    if
+   10|      1|
+   11|      1|    if
    12|      1|        is_true
    13|      1|    {
    14|      1|        countdown
@@ -27,11 +27,11 @@
    26|       |        {
    27|      1|            break
    28|       |            ;
-   29|       |        }
+   29|     10|        }
    30|     10|        countdown
    31|     10|        -=
    32|     10|        1
    33|       |        ;
-   34|      1|    }
+   34|       |    }
    35|      1|}
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.simple_match.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.simple_match.txt
index 1f7e71d3eb0e7..336853b96f34a 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.simple_match.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.simple_match.txt
@@ -1,9 +1,9 @@
     1|       |#![allow(unused_assignments)]
     2|       |
-    3|       |fn main() {
-    4|       |    // Initialize test constants in a way that cannot be determined at compile time, to ensure
-    5|       |    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
-    6|       |    // dependent conditions.
+    3|      1|fn main() {
+    4|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    5|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    6|      1|    // dependent conditions.
     7|      1|    let is_true = std::env::args().len() == 1;
     8|      1|
     9|      1|    let mut countdown = 1;
@@ -27,7 +27,6 @@
    26|      2|                x
    27|      2|                    <
    28|      2|                1
-                               ^1
    29|       |            =>
    30|      1|            {
    31|      1|                z = countdown
@@ -41,6 +40,6 @@
    39|       |            =>
    40|      1|            {}
    41|       |        }
-   42|      3|    }
+   42|       |    }
    43|      1|}
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.tight_inf_loop.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.tight_inf_loop.txt
index e02eac03a6b15..5adeef7d0850b 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.tight_inf_loop.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.tight_inf_loop.txt
@@ -1,6 +1,6 @@
-    1|       |fn main() {
+    1|      1|fn main() {
     2|      1|    if false {
     3|       |        loop {}
-    4|       |    }
+    4|      1|    }
     5|      1|}
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.try_error_result.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.try_error_result.txt
index 6b3a8c39c6338..c9ebffde039d8 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.try_error_result.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.try_error_result.txt
@@ -1,7 +1,7 @@
     1|       |#![allow(unused_assignments)]
     2|       |// expect-exit-status-1
     3|       |
-    4|       |fn call(return_error: bool) -> Result<(),()> {
+    4|      6|fn call(return_error: bool) -> Result<(),()> {
     5|      6|    if return_error {
     6|      1|        Err(())
     7|       |    } else {
@@ -9,7 +9,7 @@
     9|       |    }
    10|      6|}
    11|       |
-   12|       |fn main() -> Result<(),()> {
+   12|      1|fn main() -> Result<(),()> {
    13|      1|    let mut
    14|      1|        countdown = 10
    15|       |    ;
@@ -31,8 +31,8 @@
    31|       |        {
    32|      5|            call(/*return_error=*/ false)?;
                                                        ^0
-   33|      5|        }
-   34|      5|    }
+   33|       |        }
+   34|       |    }
    35|      0|    Ok(())
    36|      1|}
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.while.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.while.txt
index 194325b6b9eca..efa7d083f0c6f 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.while.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.while.txt
@@ -1,4 +1,4 @@
-    1|       |fn main() {
+    1|      1|fn main() {
     2|      1|    let num = 9;
     3|      1|    while num >= 10 {
     4|      0|    }
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.while_early_ret.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.while_early_ret.txt
index 26041136d2f4c..d19afc0de61d3 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.while_early_ret.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.while_early_ret.txt
@@ -1,7 +1,7 @@
     1|       |#![allow(unused_assignments)]
     2|       |// expect-exit-status-1
     3|       |
-    4|       |fn main() -> Result<(),u8> {
+    4|      1|fn main() -> Result<(),u8> {
     5|      1|    let mut countdown = 10;
     6|       |    while
     7|      7|        countdown
@@ -26,7 +26,7 @@
    26|      1|                    Err(1)
    27|       |                }
    28|       |                ;
-   29|       |        }
+   29|      6|        }
    30|      6|        countdown
    31|      6|            -=
    32|      6|        1
@@ -40,9 +40,4 @@
    40|       |// and MacOS. But on Windows (MSVC, at least), the call to `std::process::exit()` exits the program
    41|       |// without saving the InstrProf coverage counters. The use of `std::process:exit()` is not critical
    42|       |// to the coverage test for early returns, but this is a limitation that should be fixed.
-   43|       |//
-   44|       |// FIXME(richkadel): Consider creating a new tests for coverage when calling `std::process::exit()`,
-   45|       |// move the `ISSUE` comment to that test, and implement a new test directive that supports skipping
-   46|       |// coverage tests when targeting specific platforms (at least skipping Windows, or MSVC if the
-   47|       |// problem exists on MSVC only).
 
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.yield.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.yield.txt
index 28813dd6d0b07..6e2f23ee77b8d 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.yield.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.yield.txt
@@ -4,7 +4,7 @@
     4|       |use std::ops::{Generator, GeneratorState};
     5|       |use std::pin::Pin;
     6|       |
-    7|       |fn main() {
+    7|      1|fn main() {
     8|      1|    let mut generator = || {
     9|      1|        yield 1;
    10|      1|        return "foo"
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.abort.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.abort.txt
index e787e5e152d56..cbf7462eba5e6 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.abort.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.abort.txt
@@ -1,32 +1,48 @@
-Counter in file 0 15:9 -> 15:27, #1
+Counter in file 0 14:1 -> 15:27, #1
 Counter in file 0 16:11 -> 16:24, (#1 + (#2 + #3))
 Counter in file 0 17:12 -> 17:25, ((#1 + (#2 + #3)) - #4)
-Counter in file 0 17:26 -> 19:10, #2
-Counter in file 0 19:10 -> 19:11, #3
-Counter in file 0 20:9 -> 20:23, (#2 + #3)
-Counter in file 0 22:5 -> 23:2, #4
-Counter in file 0 6:8 -> 6:20, #1
+Counter in file 0 17:26 -> 19:10, #5
+Counter in file 0 19:10 -> 19:11, (((#1 + (#2 + #3)) - #4) - #5)
+Counter in file 0 21:12 -> 21:25, (#5 + (((#1 + (#2 + #3)) - #4) - #5))
+Counter in file 0 21:26 -> 21:49, #6
+Counter in file 0 21:49 -> 21:50, ((#5 + (((#1 + (#2 + #3)) - #4) - #5)) - #6)
+Counter in file 0 25:12 -> 25:25, (#6 + ((#5 + (((#1 + (#2 + #3)) - #4) - #5)) - #6))
+Counter in file 0 25:26 -> 25:49, #2
+Counter in file 0 25:49 -> 25:50, #3
+Counter in file 0 26:9 -> 26:23, (#2 + #3)
+Counter in file 0 28:5 -> 29:2, #4
+Counter in file 0 5:1 -> 5:36, #1
+Counter in file 0 6:8 -> 6:20, (#1 + 0)
 Counter in file 0 7:9 -> 8:37, #2
 Counter in file 0 9:12 -> 12:2, (#1 - #2)
 Emitting segments for file: ../coverage/abort.rs
 Combined regions:
-  6:8 -> 6:20 (count=4)
+  5:1 -> 5:36 (count=12)
+  6:8 -> 6:20 (count=12)
   7:9 -> 8:37 (count=0)
-  9:12 -> 12:2 (count=4)
-  15:9 -> 15:27 (count=1)
+  9:12 -> 12:2 (count=12)
+  14:1 -> 15:27 (count=1)
   16:11 -> 16:24 (count=11)
   17:12 -> 17:25 (count=10)
   17:26 -> 19:10 (count=4)
   19:10 -> 19:11 (count=6)
-  20:9 -> 20:23 (count=10)
-  22:5 -> 23:2 (count=1)
-Segment at 6:8 (count = 4), RegionEntry
+  21:12 -> 21:25 (count=10)
+  21:26 -> 21:49 (count=4)
+  21:49 -> 21:50 (count=6)
+  25:12 -> 25:25 (count=10)
+  25:26 -> 25:49 (count=4)
+  25:49 -> 25:50 (count=6)
+  26:9 -> 26:23 (count=10)
+  28:5 -> 29:2 (count=1)
+Segment at 5:1 (count = 12), RegionEntry
+Segment at 5:36 (count = 0), Skipped
+Segment at 6:8 (count = 12), RegionEntry
 Segment at 6:20 (count = 0), Skipped
 Segment at 7:9 (count = 0), RegionEntry
 Segment at 8:37 (count = 0), Skipped
-Segment at 9:12 (count = 4), RegionEntry
+Segment at 9:12 (count = 12), RegionEntry
 Segment at 12:2 (count = 0), Skipped
-Segment at 15:9 (count = 1), RegionEntry
+Segment at 14:1 (count = 1), RegionEntry
 Segment at 15:27 (count = 0), Skipped
 Segment at 16:11 (count = 11), RegionEntry
 Segment at 16:24 (count = 0), Skipped
@@ -35,7 +51,17 @@ Segment at 17:25 (count = 0), Skipped
 Segment at 17:26 (count = 4), RegionEntry
 Segment at 19:10 (count = 6), RegionEntry
 Segment at 19:11 (count = 0), Skipped
-Segment at 20:9 (count = 10), RegionEntry
-Segment at 20:23 (count = 0), Skipped
-Segment at 22:5 (count = 1), RegionEntry
-Segment at 23:2 (count = 0), Skipped
+Segment at 21:12 (count = 10), RegionEntry
+Segment at 21:25 (count = 0), Skipped
+Segment at 21:26 (count = 4), RegionEntry
+Segment at 21:49 (count = 6), RegionEntry
+Segment at 21:50 (count = 0), Skipped
+Segment at 25:12 (count = 10), RegionEntry
+Segment at 25:25 (count = 0), Skipped
+Segment at 25:26 (count = 4), RegionEntry
+Segment at 25:49 (count = 6), RegionEntry
+Segment at 25:50 (count = 0), Skipped
+Segment at 26:9 (count = 10), RegionEntry
+Segment at 26:23 (count = 0), Skipped
+Segment at 28:5 (count = 1), RegionEntry
+Segment at 29:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.assert.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.assert.txt
index 81cb6c03da702..916ebbbcc29d3 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.assert.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.assert.txt
@@ -1,32 +1,35 @@
-Counter in file 0 10:9 -> 10:27, #1
+Counter in file 0 9:1 -> 10:27, #1
 Counter in file 0 11:11 -> 11:24, (#1 + (#2 + (#3 + #4)))
 Counter in file 0 12:12 -> 12:26, ((#1 + (#2 + (#3 + #4))) - #5)
 Counter in file 0 12:27 -> 14:10, #2
 Counter in file 0 14:19 -> 14:32, (((#1 + (#2 + (#3 + #4))) - #5) - #2)
 Counter in file 0 14:33 -> 16:10, #3
 Counter in file 0 16:10 -> 16:11, #4
-Counter in file 0 16:10 -> 16:11, (#3 + #4)
 Counter in file 0 17:9 -> 17:23, (#2 + (#3 + #4))
 Counter in file 0 19:5 -> 20:2, #5
-Counter in file 0 5:5 -> 5:48, #1
+Counter in file 0 4:1 -> 4:41, #1
+Counter in file 0 5:5 -> 5:48, (#1 + 0)
 Counter in file 0 6:16 -> 6:21, (#1 + 0)
 Counter in file 0 6:37 -> 6:61, #2
 Counter in file 0 7:1 -> 7:2, (#1 - #2)
 Emitting segments for file: ../coverage/assert.rs
 Combined regions:
+  4:1 -> 4:41 (count=4)
   5:5 -> 5:48 (count=4)
   6:16 -> 6:21 (count=4)
   6:37 -> 6:61 (count=1)
   7:1 -> 7:2 (count=3)
-  10:9 -> 10:27 (count=1)
+  9:1 -> 10:27 (count=1)
   11:11 -> 11:24 (count=10)
   12:12 -> 12:26 (count=10)
   12:27 -> 14:10 (count=0)
   14:19 -> 14:32 (count=10)
   14:33 -> 16:10 (count=3)
-  16:10 -> 16:11 (count=15)
+  16:10 -> 16:11 (count=6)
   17:9 -> 17:23 (count=9)
   19:5 -> 20:2 (count=0)
+Segment at 4:1 (count = 4), RegionEntry
+Segment at 4:41 (count = 0), Skipped
 Segment at 5:5 (count = 4), RegionEntry
 Segment at 5:48 (count = 0), Skipped
 Segment at 6:16 (count = 4), RegionEntry
@@ -35,7 +38,7 @@ Segment at 6:37 (count = 1), RegionEntry
 Segment at 6:61 (count = 0), Skipped
 Segment at 7:1 (count = 3), RegionEntry
 Segment at 7:2 (count = 0), Skipped
-Segment at 10:9 (count = 1), RegionEntry
+Segment at 9:1 (count = 1), RegionEntry
 Segment at 10:27 (count = 0), Skipped
 Segment at 11:11 (count = 10), RegionEntry
 Segment at 11:24 (count = 0), Skipped
@@ -46,7 +49,7 @@ Segment at 14:10 (count = 0), Skipped
 Segment at 14:19 (count = 10), RegionEntry
 Segment at 14:32 (count = 0), Skipped
 Segment at 14:33 (count = 3), RegionEntry
-Segment at 16:10 (count = 15), RegionEntry
+Segment at 16:10 (count = 6), RegionEntry
 Segment at 16:11 (count = 0), Skipped
 Segment at 17:9 (count = 9), RegionEntry
 Segment at 17:23 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.async.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.async.txt
index 0490a319856b7..ce6ee3b1ed8df 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.async.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.async.txt
@@ -1,84 +1,304 @@
-Counter in file 0 15:9 -> 15:75, #1
-Counter in file 0 15:9 -> 15:75, #1
-Counter in file 0 15:9 -> 15:75, #1
-Counter in file 0 47:13 -> 56:54, #1
-Counter in file 0 59:32 -> 59:35, ((#1 + #2) - #2)
-Counter in file 0 59:39 -> 59:73, (#1 + #2)
-Counter in file 0 60:23 -> 60:26, (((#1 + #2) - #2) + 0)
-Counter in file 0 62:10 -> 62:11, #2
-Counter in file 0 63:5 -> 63:6, (((#1 + #2) - #2) + 0)
-Counter in file 0 53:17 -> 53:19, #1
-Counter in file 0 30:1 -> 30:2, #1
-Counter in file 0 5:24 -> 5:25, #1
-Counter in file 0 14:1 -> 14:2, #1
-Counter in file 0 5:22 -> 5:25, #1
-Counter in file 0 25:19 -> 26:12, #1
-Counter in file 0 27:9 -> 27:10, #3
-Counter in file 0 27:14 -> 27:17, (#1 + 0)
-Counter in file 0 27:27 -> 27:32, #2
-Counter in file 0 27:32 -> 27:33, (#2 - #3)
-Counter in file 0 27:36 -> 27:38, (#3 + 0)
-Counter in file 0 28:14 -> 28:16, #4
-Counter in file 0 30:1 -> 30:2, (#3 + #4)
-Counter in file 0 23:1 -> 23:2, #1
-Counter in file 0 32:11 -> 37:2, #1
+Counter in file 0 13:1 -> 13:20, #1
+Counter in file 0 15:1 -> 15:20, 0
+Counter in file 0 15:20 -> 15:21, 0
+Counter in file 0 19:1 -> 19:30, 0
+Counter in file 0 19:30 -> 19:31, 0
+Counter in file 0 21:23 -> 22:12, 0
+Counter in file 0 23:9 -> 23:10, 0
+Counter in file 0 23:14 -> 23:17, 0
+Counter in file 0 23:27 -> 23:28, 0
+Counter in file 0 23:32 -> 23:34, 0
+Counter in file 0 24:9 -> 24:10, 0
+Counter in file 0 24:14 -> 24:17, 0
+Counter in file 0 24:27 -> 24:28, 0
+Counter in file 0 24:32 -> 24:34, 0
+Counter in file 0 25:14 -> 25:16, 0
+Counter in file 0 27:1 -> 27:2, 0
+Counter in file 0 29:22 -> 32:12, 0
+Counter in file 0 33:9 -> 33:10, 0
+Counter in file 0 33:14 -> 33:19, 0
+Counter in file 0 33:26 -> 33:27, 0
+Counter in file 0 33:32 -> 33:34, 0
+Counter in file 0 34:14 -> 34:16, 0
+Counter in file 0 36:1 -> 36:2, 0
+Counter in file 0 75:1 -> 76:12, 0
+Counter in file 0 77:14 -> 77:16, 0
+Counter in file 0 78:14 -> 78:16, 0
+Counter in file 0 79:14 -> 79:16, 0
+Counter in file 0 81:1 -> 81:2, 0
+Counter in file 0 5:1 -> 5:25, #1
+Counter in file 0 21:1 -> 21:23, #1
+Counter in file 0 17:20 -> 17:21, #1
+Counter in file 0 67:5 -> 67:23, #1
+Counter in file 0 38:1 -> 38:19, #1
+Counter in file 0 13:20 -> 13:21, #1
+Counter in file 0 29:1 -> 29:22, #1
+Counter in file 0 91:1 -> 98:2, #1
+Counter in file 0 5:25 -> 6:14, #1
+Counter in file 0 7:9 -> 7:10, #2
+Counter in file 0 9:9 -> 9:10, (#1 - #2)
+Counter in file 0 11:1 -> 11:2, (#2 + (#1 - #2))
+Counter in file 0 38:19 -> 42:12, #1
+Counter in file 0 43:9 -> 43:10, #3
+Counter in file 0 43:14 -> 43:18, (#1 + 0)
+Counter in file 0 43:28 -> 43:33, #2
+Counter in file 0 43:39 -> 43:42, (#3 + 0)
+Counter in file 0 44:9 -> 44:10, #6
+Counter in file 0 44:14 -> 44:17, #4
+Counter in file 0 44:27 -> 44:32, #8
+Counter in file 0 44:36 -> 44:38, (#6 + 0)
+Counter in file 0 45:14 -> 45:16, #7
+Counter in file 0 47:1 -> 47:2, (#5 + (#6 + #7))
+Counter in file 0 51:5 -> 52:18, #1
+Counter in file 0 53:13 -> 53:14, #2
+Counter in file 0 63:13 -> 63:14, (#1 - #2)
+Counter in file 0 65:5 -> 65:6, (#2 + (#1 - #2))
+Counter in file 0 49:1 -> 68:12, #1
+Counter in file 0 69:9 -> 69:10, #2
+Counter in file 0 69:14 -> 69:27, (#1 + 0)
+Counter in file 0 69:31 -> 69:39, (#2 + 0)
+Counter in file 0 70:9 -> 70:10, #3
+Counter in file 0 70:14 -> 70:26, #5
+Counter in file 0 70:30 -> 70:32, (#3 + 0)
+Counter in file 0 71:14 -> 71:16, #4
+Counter in file 0 73:1 -> 73:2, (#2 + (#3 + #4))
+Counter in file 0 83:1 -> 84:12, #1
+Counter in file 0 85:14 -> 85:16, (#1 - (#3 + #2))
+Counter in file 0 86:14 -> 86:16, #2
+Counter in file 0 87:14 -> 87:16, #3
+Counter in file 0 89:1 -> 89:2, (#3 + (#2 + (#1 - (#3 + #2))))
+Counter in file 0 17:1 -> 17:20, #1
+Counter in file 0 66:5 -> 66:23, #1
+Counter in file 0 107:5 -> 117:54, #1
+Counter in file 0 120:32 -> 120:35, ((#1 + #2) - #2)
+Counter in file 0 120:39 -> 120:73, (#1 + #2)
+Counter in file 0 121:23 -> 121:26, (((#1 + #2) - #2) + 0)
+Counter in file 0 122:14 -> 122:15, #2
+Counter in file 0 124:5 -> 124:6, (((#1 + #2) - #2) + 0)
+Counter in file 0 114:17 -> 114:19, #1
+Counter in file 0 17:9 -> 17:10, #1
+Counter in file 0 17:9 -> 17:10, #1
+Counter in file 0 17:9 -> 17:10, #1
 Emitting segments for file: ../coverage/async.rs
 Combined regions:
-  5:22 -> 5:25 (count=1)
-  5:24 -> 5:25 (count=1)
-  14:1 -> 14:2 (count=1)
-  23:1 -> 23:2 (count=1)
-  25:19 -> 26:12 (count=1)
-  27:9 -> 27:10 (count=0)
-  27:14 -> 27:17 (count=1)
-  27:27 -> 27:32 (count=1)
-  27:32 -> 27:33 (count=1)
-  27:36 -> 27:38 (count=0)
-  28:14 -> 28:16 (count=1)
-  30:1 -> 30:2 (count=2)
-  32:11 -> 37:2 (count=1)
-  47:13 -> 56:54 (count=1)
-  53:17 -> 53:19 (count=1)
-  59:32 -> 59:35 (count=1)
-  59:39 -> 59:73 (count=1)
-  60:23 -> 60:26 (count=1)
-  62:10 -> 62:11 (count=0)
-  63:5 -> 63:6 (count=1)
-Segment at 5:22 (count = 1), RegionEntry
-Segment at 5:24 (count = 1), RegionEntry
-Segment at 5:25 (count = 0), Skipped
-Segment at 14:1 (count = 1), RegionEntry
-Segment at 14:2 (count = 0), Skipped
-Segment at 23:1 (count = 1), RegionEntry
-Segment at 23:2 (count = 0), Skipped
-Segment at 25:19 (count = 1), RegionEntry
-Segment at 26:12 (count = 0), Skipped
-Segment at 27:9 (count = 0), RegionEntry
-Segment at 27:10 (count = 0), Skipped
-Segment at 27:14 (count = 1), RegionEntry
-Segment at 27:17 (count = 0), Skipped
-Segment at 27:27 (count = 1), RegionEntry
-Segment at 27:32 (count = 1), RegionEntry
-Segment at 27:33 (count = 0), Skipped
-Segment at 27:36 (count = 0), RegionEntry
-Segment at 27:38 (count = 0), Skipped
-Segment at 28:14 (count = 1), RegionEntry
-Segment at 28:16 (count = 0), Skipped
-Segment at 30:1 (count = 2), RegionEntry
-Segment at 30:2 (count = 0), Skipped
-Segment at 32:11 (count = 1), RegionEntry
-Segment at 37:2 (count = 0), Skipped
-Segment at 47:13 (count = 1), RegionEntry
-Segment at 53:17 (count = 1), RegionEntry
-Segment at 53:19 (count = 1)
-Segment at 56:54 (count = 0), Skipped
-Segment at 59:32 (count = 1), RegionEntry
-Segment at 59:35 (count = 0), Skipped
-Segment at 59:39 (count = 1), RegionEntry
-Segment at 59:73 (count = 0), Skipped
-Segment at 60:23 (count = 1), RegionEntry
-Segment at 60:26 (count = 0), Skipped
-Segment at 62:10 (count = 0), RegionEntry
-Segment at 62:11 (count = 0), Skipped
-Segment at 63:5 (count = 1), RegionEntry
-Segment at 63:6 (count = 0), Skipped
+  5:1 -> 5:25 (count=1)
+  5:25 -> 6:14 (count=1)
+  7:9 -> 7:10 (count=1)
+  9:9 -> 9:10 (count=0)
+  11:1 -> 11:2 (count=1)
+  13:1 -> 13:20 (count=0)
+  15:1 -> 15:20 (count=0)
+  15:20 -> 15:21 (count=0)
+  17:1 -> 17:20 (count=1)
+  17:20 -> 17:21 (count=1)
+  19:1 -> 19:30 (count=0)
+  19:30 -> 19:31 (count=0)
+  21:1 -> 21:23 (count=1)
+  21:23 -> 22:12 (count=0)
+  23:9 -> 23:10 (count=0)
+  23:14 -> 23:17 (count=0)
+  23:27 -> 23:28 (count=0)
+  23:32 -> 23:34 (count=0)
+  24:9 -> 24:10 (count=0)
+  24:14 -> 24:17 (count=0)
+  24:27 -> 24:28 (count=0)
+  24:32 -> 24:34 (count=0)
+  25:14 -> 25:16 (count=0)
+  27:1 -> 27:2 (count=0)
+  29:1 -> 29:22 (count=1)
+  29:22 -> 32:12 (count=0)
+  33:9 -> 33:10 (count=0)
+  33:14 -> 33:19 (count=0)
+  33:26 -> 33:27 (count=0)
+  33:32 -> 33:34 (count=0)
+  34:14 -> 34:16 (count=0)
+  36:1 -> 36:2 (count=0)
+  38:1 -> 38:19 (count=1)
+  38:19 -> 42:12 (count=1)
+  43:9 -> 43:10 (count=0)
+  43:14 -> 43:18 (count=1)
+  43:28 -> 43:33 (count=1)
+  43:39 -> 43:42 (count=0)
+  44:9 -> 44:10 (count=0)
+  44:14 -> 44:17 (count=1)
+  44:27 -> 44:32 (count=1)
+  44:36 -> 44:38 (count=0)
+  45:14 -> 45:16 (count=1)
+  47:1 -> 47:2 (count=1)
+  49:1 -> 68:12 (count=1)
+  51:5 -> 52:18 (count=1)
+  53:13 -> 53:14 (count=0)
+  63:13 -> 63:14 (count=1)
+  65:5 -> 65:6 (count=1)
+  67:5 -> 67:23 (count=1)
+  69:9 -> 69:10 (count=0)
+  69:14 -> 69:27 (count=1)
+  69:31 -> 69:39 (count=0)
+  70:9 -> 70:10 (count=0)
+  70:14 -> 70:26 (count=1)
+  70:30 -> 70:32 (count=0)
+  71:14 -> 71:16 (count=1)
+  73:1 -> 73:2 (count=1)
+  75:1 -> 76:12 (count=0)
+  77:14 -> 77:16 (count=0)
+  78:14 -> 78:16 (count=0)
+  79:14 -> 79:16 (count=0)
+  81:1 -> 81:2 (count=0)
+  83:1 -> 84:12 (count=1)
+  85:14 -> 85:16 (count=0)
+  86:14 -> 86:16 (count=0)
+  87:14 -> 87:16 (count=1)
+  89:1 -> 89:2 (count=1)
+  91:1 -> 98:2 (count=1)
+  107:5 -> 117:54 (count=1)
+  114:17 -> 114:19 (count=1)
+  120:32 -> 120:35 (count=1)
+  120:39 -> 120:73 (count=1)
+  121:23 -> 121:26 (count=1)
+  122:14 -> 122:15 (count=0)
+  124:5 -> 124:6 (count=1)
+Segment at 5:1 (count = 1), RegionEntry
+Segment at 5:25 (count = 1), RegionEntry
+Segment at 6:14 (count = 0), Skipped
+Segment at 7:9 (count = 1), RegionEntry
+Segment at 7:10 (count = 0), Skipped
+Segment at 9:9 (count = 0), RegionEntry
+Segment at 9:10 (count = 0), Skipped
+Segment at 11:1 (count = 1), RegionEntry
+Segment at 11:2 (count = 0), Skipped
+Segment at 13:1 (count = 0), RegionEntry
+Segment at 13:20 (count = 0), Skipped
+Segment at 15:1 (count = 0), RegionEntry
+Segment at 15:20 (count = 0), RegionEntry
+Segment at 15:21 (count = 0), Skipped
+Segment at 17:1 (count = 1), RegionEntry
+Segment at 17:20 (count = 1), RegionEntry
+Segment at 17:21 (count = 0), Skipped
+Segment at 19:1 (count = 0), RegionEntry
+Segment at 19:30 (count = 0), RegionEntry
+Segment at 19:31 (count = 0), Skipped
+Segment at 21:1 (count = 1), RegionEntry
+Segment at 21:23 (count = 0), RegionEntry
+Segment at 22:12 (count = 0), Skipped
+Segment at 23:9 (count = 0), RegionEntry
+Segment at 23:10 (count = 0), Skipped
+Segment at 23:14 (count = 0), RegionEntry
+Segment at 23:17 (count = 0), Skipped
+Segment at 23:27 (count = 0), RegionEntry
+Segment at 23:28 (count = 0), Skipped
+Segment at 23:32 (count = 0), RegionEntry
+Segment at 23:34 (count = 0), Skipped
+Segment at 24:9 (count = 0), RegionEntry
+Segment at 24:10 (count = 0), Skipped
+Segment at 24:14 (count = 0), RegionEntry
+Segment at 24:17 (count = 0), Skipped
+Segment at 24:27 (count = 0), RegionEntry
+Segment at 24:28 (count = 0), Skipped
+Segment at 24:32 (count = 0), RegionEntry
+Segment at 24:34 (count = 0), Skipped
+Segment at 25:14 (count = 0), RegionEntry
+Segment at 25:16 (count = 0), Skipped
+Segment at 27:1 (count = 0), RegionEntry
+Segment at 27:2 (count = 0), Skipped
+Segment at 29:1 (count = 1), RegionEntry
+Segment at 29:22 (count = 0), RegionEntry
+Segment at 32:12 (count = 0), Skipped
+Segment at 33:9 (count = 0), RegionEntry
+Segment at 33:10 (count = 0), Skipped
+Segment at 33:14 (count = 0), RegionEntry
+Segment at 33:19 (count = 0), Skipped
+Segment at 33:26 (count = 0), RegionEntry
+Segment at 33:27 (count = 0), Skipped
+Segment at 33:32 (count = 0), RegionEntry
+Segment at 33:34 (count = 0), Skipped
+Segment at 34:14 (count = 0), RegionEntry
+Segment at 34:16 (count = 0), Skipped
+Segment at 36:1 (count = 0), RegionEntry
+Segment at 36:2 (count = 0), Skipped
+Segment at 38:1 (count = 1), RegionEntry
+Segment at 38:19 (count = 1), RegionEntry
+Segment at 42:12 (count = 0), Skipped
+Segment at 43:9 (count = 0), RegionEntry
+Segment at 43:10 (count = 0), Skipped
+Segment at 43:14 (count = 1), RegionEntry
+Segment at 43:18 (count = 0), Skipped
+Segment at 43:28 (count = 1), RegionEntry
+Segment at 43:33 (count = 0), Skipped
+Segment at 43:39 (count = 0), RegionEntry
+Segment at 43:42 (count = 0), Skipped
+Segment at 44:9 (count = 0), RegionEntry
+Segment at 44:10 (count = 0), Skipped
+Segment at 44:14 (count = 1), RegionEntry
+Segment at 44:17 (count = 0), Skipped
+Segment at 44:27 (count = 1), RegionEntry
+Segment at 44:32 (count = 0), Skipped
+Segment at 44:36 (count = 0), RegionEntry
+Segment at 44:38 (count = 0), Skipped
+Segment at 45:14 (count = 1), RegionEntry
+Segment at 45:16 (count = 0), Skipped
+Segment at 47:1 (count = 1), RegionEntry
+Segment at 47:2 (count = 0), Skipped
+Segment at 49:1 (count = 1), RegionEntry
+Segment at 51:5 (count = 1), RegionEntry
+Segment at 52:18 (count = 1)
+Segment at 53:13 (count = 0), RegionEntry
+Segment at 53:14 (count = 1)
+Segment at 63:13 (count = 1), RegionEntry
+Segment at 63:14 (count = 1)
+Segment at 65:5 (count = 1), RegionEntry
+Segment at 65:6 (count = 1)
+Segment at 67:5 (count = 1), RegionEntry
+Segment at 67:23 (count = 1)
+Segment at 68:12 (count = 0), Skipped
+Segment at 69:9 (count = 0), RegionEntry
+Segment at 69:10 (count = 0), Skipped
+Segment at 69:14 (count = 1), RegionEntry
+Segment at 69:27 (count = 0), Skipped
+Segment at 69:31 (count = 0), RegionEntry
+Segment at 69:39 (count = 0), Skipped
+Segment at 70:9 (count = 0), RegionEntry
+Segment at 70:10 (count = 0), Skipped
+Segment at 70:14 (count = 1), RegionEntry
+Segment at 70:26 (count = 0), Skipped
+Segment at 70:30 (count = 0), RegionEntry
+Segment at 70:32 (count = 0), Skipped
+Segment at 71:14 (count = 1), RegionEntry
+Segment at 71:16 (count = 0), Skipped
+Segment at 73:1 (count = 1), RegionEntry
+Segment at 73:2 (count = 0), Skipped
+Segment at 75:1 (count = 0), RegionEntry
+Segment at 76:12 (count = 0), Skipped
+Segment at 77:14 (count = 0), RegionEntry
+Segment at 77:16 (count = 0), Skipped
+Segment at 78:14 (count = 0), RegionEntry
+Segment at 78:16 (count = 0), Skipped
+Segment at 79:14 (count = 0), RegionEntry
+Segment at 79:16 (count = 0), Skipped
+Segment at 81:1 (count = 0), RegionEntry
+Segment at 81:2 (count = 0), Skipped
+Segment at 83:1 (count = 1), RegionEntry
+Segment at 84:12 (count = 0), Skipped
+Segment at 85:14 (count = 0), RegionEntry
+Segment at 85:16 (count = 0), Skipped
+Segment at 86:14 (count = 0), RegionEntry
+Segment at 86:16 (count = 0), Skipped
+Segment at 87:14 (count = 1), RegionEntry
+Segment at 87:16 (count = 0), Skipped
+Segment at 89:1 (count = 1), RegionEntry
+Segment at 89:2 (count = 0), Skipped
+Segment at 91:1 (count = 1), RegionEntry
+Segment at 98:2 (count = 0), Skipped
+Segment at 107:5 (count = 1), RegionEntry
+Segment at 114:17 (count = 1), RegionEntry
+Segment at 114:19 (count = 1)
+Segment at 117:54 (count = 0), Skipped
+Segment at 120:32 (count = 1), RegionEntry
+Segment at 120:35 (count = 0), Skipped
+Segment at 120:39 (count = 1), RegionEntry
+Segment at 120:73 (count = 0), Skipped
+Segment at 121:23 (count = 1), RegionEntry
+Segment at 121:26 (count = 0), Skipped
+Segment at 122:14 (count = 0), RegionEntry
+Segment at 122:15 (count = 0), Skipped
+Segment at 124:5 (count = 1), RegionEntry
+Segment at 124:6 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.closure.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.closure.txt
index fb797796e4e7d..1aacac0ed2515 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.closure.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.closure.txt
@@ -1,60 +1,92 @@
-Counter in file 0 20:21 -> 20:38, #1
-Counter in file 0 21:20 -> 21:28, (#1 + 0)
-Counter in file 0 21:29 -> 23:18, #2
-Counter in file 0 23:18 -> 23:19, (#1 - #2)
-Counter in file 0 24:17 -> 25:14, (#2 + (#1 - #2))
-Counter in file 0 3:11 -> 18:13, #1
+Counter in file 0 98:5 -> 100:20, #1
+Counter in file 0 100:21 -> 102:10, #2
+Counter in file 0 102:10 -> 102:11, (#1 - #2)
+Counter in file 0 103:9 -> 104:6, (#2 + (#1 - #2))
+Counter in file 0 123:5 -> 124:20, 0
+Counter in file 0 124:21 -> 126:10, 0
+Counter in file 0 126:10 -> 126:11, 0
+Counter in file 0 127:9 -> 128:6, 0
+Counter in file 0 131:53 -> 131:67, 0
+Counter in file 0 141:59 -> 141:85, 0
+Counter in file 0 143:56 -> 145:6, 0
+Counter in file 0 149:7 -> 149:33, 0
+Counter in file 0 153:7 -> 153:33, 0
+Counter in file 0 3:1 -> 18:13, #1
 Counter in file 0 25:14 -> 33:9, (#1 + 0)
 Counter in file 0 40:6 -> 60:13, (#1 + 0)
 Counter in file 0 67:14 -> 75:9, (#1 + 0)
-Counter in file 0 82:6 -> 93:2, (#1 + 0)
-Counter in file 0 77:13 -> 77:30, #1
-Counter in file 0 78:12 -> 78:20, (#1 + 0)
-Counter in file 0 78:21 -> 80:10, #2
-Counter in file 0 80:10 -> 80:11, (#1 - #2)
-Counter in file 0 81:9 -> 82:6, (#2 + (#1 - #2))
-Counter in file 0 62:21 -> 62:38, #1
-Counter in file 0 63:20 -> 63:28, (#1 + 0)
+Counter in file 0 82:6 -> 97:9, (#1 + 0)
+Counter in file 0 104:6 -> 120:9, (#1 + 0)
+Counter in file 0 128:6 -> 131:33, (#1 + 0)
+Counter in file 0 131:67 -> 136:33, (#1 + 0)
+Counter in file 0 136:75 -> 141:39, (#1 + 0)
+Counter in file 0 141:85 -> 143:36, (#1 + 0)
+Counter in file 0 145:6 -> 147:36, (#1 + 0)
+Counter in file 0 149:33 -> 151:43, (#1 + 0)
+Counter in file 0 153:33 -> 155:2, (#1 + 0)
+Counter in file 0 61:13 -> 63:28, #1
 Counter in file 0 63:29 -> 65:18, #2
 Counter in file 0 65:18 -> 65:19, (#1 - #2)
 Counter in file 0 66:17 -> 67:14, (#2 + (#1 - #2))
-Counter in file 0 35:13 -> 35:30, #1
-Counter in file 0 36:12 -> 36:20, (#1 + 0)
+Counter in file 0 76:5 -> 78:20, #1
+Counter in file 0 78:21 -> 80:10, #2
+Counter in file 0 80:10 -> 80:11, (#1 - #2)
+Counter in file 0 81:9 -> 82:6, (#2 + (#1 - #2))
+Counter in file 0 34:5 -> 36:20, #1
 Counter in file 0 36:21 -> 38:10, #2
 Counter in file 0 38:10 -> 38:11, (#1 - #2)
 Counter in file 0 39:9 -> 40:6, (#2 + (#1 - #2))
+Counter in file 0 19:13 -> 21:28, #1
+Counter in file 0 21:29 -> 23:18, #2
+Counter in file 0 23:18 -> 23:19, (#1 - #2)
+Counter in file 0 24:17 -> 25:14, (#2 + (#1 - #2))
 Emitting segments for file: ../coverage/closure.rs
 Combined regions:
-  3:11 -> 18:13 (count=1)
-  20:21 -> 20:38 (count=0)
-  21:20 -> 21:28 (count=0)
+  3:1 -> 18:13 (count=1)
+  19:13 -> 21:28 (count=0)
   21:29 -> 23:18 (count=0)
   23:18 -> 23:19 (count=0)
   24:17 -> 25:14 (count=0)
   25:14 -> 33:9 (count=1)
-  35:13 -> 35:30 (count=0)
-  36:12 -> 36:20 (count=0)
+  34:5 -> 36:20 (count=0)
   36:21 -> 38:10 (count=0)
   38:10 -> 38:11 (count=0)
   39:9 -> 40:6 (count=0)
   40:6 -> 60:13 (count=1)
-  62:21 -> 62:38 (count=1)
-  63:20 -> 63:28 (count=1)
+  61:13 -> 63:28 (count=1)
   63:29 -> 65:18 (count=0)
   65:18 -> 65:19 (count=1)
   66:17 -> 67:14 (count=1)
   67:14 -> 75:9 (count=1)
-  77:13 -> 77:30 (count=1)
-  78:12 -> 78:20 (count=1)
+  76:5 -> 78:20 (count=1)
   78:21 -> 80:10 (count=0)
   80:10 -> 80:11 (count=1)
   81:9 -> 82:6 (count=1)
-  82:6 -> 93:2 (count=1)
-Segment at 3:11 (count = 1), RegionEntry
+  82:6 -> 97:9 (count=1)
+  98:5 -> 100:20 (count=5)
+  100:21 -> 102:10 (count=0)
+  102:10 -> 102:11 (count=5)
+  103:9 -> 104:6 (count=5)
+  104:6 -> 120:9 (count=1)
+  123:5 -> 124:20 (count=0)
+  124:21 -> 126:10 (count=0)
+  126:10 -> 126:11 (count=0)
+  127:9 -> 128:6 (count=0)
+  128:6 -> 131:33 (count=1)
+  131:53 -> 131:67 (count=0)
+  131:67 -> 136:33 (count=1)
+  136:75 -> 141:39 (count=1)
+  141:59 -> 141:85 (count=0)
+  141:85 -> 143:36 (count=1)
+  143:56 -> 145:6 (count=0)
+  145:6 -> 147:36 (count=1)
+  149:7 -> 149:33 (count=0)
+  149:33 -> 151:43 (count=1)
+  153:7 -> 153:33 (count=0)
+  153:33 -> 155:2 (count=1)
+Segment at 3:1 (count = 1), RegionEntry
 Segment at 18:13 (count = 0), Skipped
-Segment at 20:21 (count = 0), RegionEntry
-Segment at 20:38 (count = 0), Skipped
-Segment at 21:20 (count = 0), RegionEntry
+Segment at 19:13 (count = 0), RegionEntry
 Segment at 21:28 (count = 0), Skipped
 Segment at 21:29 (count = 0), RegionEntry
 Segment at 23:18 (count = 0), RegionEntry
@@ -62,9 +94,7 @@ Segment at 23:19 (count = 0), Skipped
 Segment at 24:17 (count = 0), RegionEntry
 Segment at 25:14 (count = 1), RegionEntry
 Segment at 33:9 (count = 0), Skipped
-Segment at 35:13 (count = 0), RegionEntry
-Segment at 35:30 (count = 0), Skipped
-Segment at 36:12 (count = 0), RegionEntry
+Segment at 34:5 (count = 0), RegionEntry
 Segment at 36:20 (count = 0), Skipped
 Segment at 36:21 (count = 0), RegionEntry
 Segment at 38:10 (count = 0), RegionEntry
@@ -72,9 +102,7 @@ Segment at 38:11 (count = 0), Skipped
 Segment at 39:9 (count = 0), RegionEntry
 Segment at 40:6 (count = 1), RegionEntry
 Segment at 60:13 (count = 0), Skipped
-Segment at 62:21 (count = 1), RegionEntry
-Segment at 62:38 (count = 0), Skipped
-Segment at 63:20 (count = 1), RegionEntry
+Segment at 61:13 (count = 1), RegionEntry
 Segment at 63:28 (count = 0), Skipped
 Segment at 63:29 (count = 0), RegionEntry
 Segment at 65:18 (count = 1), RegionEntry
@@ -82,13 +110,44 @@ Segment at 65:19 (count = 0), Skipped
 Segment at 66:17 (count = 1), RegionEntry
 Segment at 67:14 (count = 1), RegionEntry
 Segment at 75:9 (count = 0), Skipped
-Segment at 77:13 (count = 1), RegionEntry
-Segment at 77:30 (count = 0), Skipped
-Segment at 78:12 (count = 1), RegionEntry
+Segment at 76:5 (count = 1), RegionEntry
 Segment at 78:20 (count = 0), Skipped
 Segment at 78:21 (count = 0), RegionEntry
 Segment at 80:10 (count = 1), RegionEntry
 Segment at 80:11 (count = 0), Skipped
 Segment at 81:9 (count = 1), RegionEntry
 Segment at 82:6 (count = 1), RegionEntry
-Segment at 93:2 (count = 0), Skipped
+Segment at 97:9 (count = 0), Skipped
+Segment at 98:5 (count = 5), RegionEntry
+Segment at 100:20 (count = 0), Skipped
+Segment at 100:21 (count = 0), RegionEntry
+Segment at 102:10 (count = 5), RegionEntry
+Segment at 102:11 (count = 0), Skipped
+Segment at 103:9 (count = 5), RegionEntry
+Segment at 104:6 (count = 1), RegionEntry
+Segment at 120:9 (count = 0), Skipped
+Segment at 123:5 (count = 0), RegionEntry
+Segment at 124:20 (count = 0), Skipped
+Segment at 124:21 (count = 0), RegionEntry
+Segment at 126:10 (count = 0), RegionEntry
+Segment at 126:11 (count = 0), Skipped
+Segment at 127:9 (count = 0), RegionEntry
+Segment at 128:6 (count = 1), RegionEntry
+Segment at 131:33 (count = 0), Skipped
+Segment at 131:53 (count = 0), RegionEntry
+Segment at 131:67 (count = 1), RegionEntry
+Segment at 136:33 (count = 0), Skipped
+Segment at 136:75 (count = 1), RegionEntry
+Segment at 141:39 (count = 0), Skipped
+Segment at 141:59 (count = 0), RegionEntry
+Segment at 141:85 (count = 1), RegionEntry
+Segment at 143:36 (count = 0), Skipped
+Segment at 143:56 (count = 0), RegionEntry
+Segment at 145:6 (count = 1), RegionEntry
+Segment at 147:36 (count = 0), Skipped
+Segment at 149:7 (count = 0), RegionEntry
+Segment at 149:33 (count = 1), RegionEntry
+Segment at 151:43 (count = 0), Skipped
+Segment at 153:7 (count = 0), RegionEntry
+Segment at 153:33 (count = 1), RegionEntry
+Segment at 155:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.conditions.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.conditions.txt
index a4c1a9c0f121a..3a9c6a9b92e98 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.conditions.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.conditions.txt
@@ -1,5 +1,5 @@
-Counter in file 0 4:9 -> 4:26, #1
-Counter in file 0 5:8 -> 5:12, (#1 + 0)
+Counter in file 0 3:1 -> 3:11, #1
+Counter in file 0 4:9 -> 5:12, (#1 + 0)
 Counter in file 0 5:13 -> 7:6, #2
 Counter in file 0 10:9 -> 10:10, (#3 + (#12 + #13))
 Counter in file 0 10:16 -> 10:29, (#2 + 0)
@@ -7,89 +7,65 @@ Counter in file 0 11:9 -> 12:10, #3
 Counter in file 0 13:15 -> 13:28, ((#2 + 0) - #3)
 Counter in file 0 14:12 -> 14:25, #4
 Counter in file 0 14:29 -> 14:42, (#4 - #15)
-Counter in file 0 14:42 -> 14:43, ((#4 - #15) - #16)
-Counter in file 0 14:42 -> 14:43, (#15 + #16)
-Counter in file 0 14:46 -> 14:60, #23
-Counter in file 0 14:60 -> 14:61, (#18 + #19)
-Counter in file 0 14:60 -> 14:61, (#23 - #19)
+Counter in file 0 14:46 -> 14:60, #21
 Counter in file 0 14:61 -> 16:10, #12
 Counter in file 0 16:10 -> 16:11, #13
 Counter in file 0 17:9 -> 18:18, (#12 + #13)
 Counter in file 0 20:9 -> 20:15, (((#2 + 0) - #3) - #4)
-Counter in file 0 23:9 -> 23:26, ((#3 + (#12 + #13)) + 0)
-Counter in file 0 24:8 -> 24:12, ((#3 + (#12 + #13)) + 0)
+Counter in file 0 23:9 -> 24:12, ((#3 + (#12 + #13)) + 0)
 Counter in file 0 24:13 -> 26:6, #14
 Counter in file 0 28:8 -> 28:21, (#14 + 0)
-Counter in file 0 28:22 -> 30:6, #17
-Counter in file 0 30:15 -> 30:28, ((#14 + 0) - #17)
-Counter in file 0 31:12 -> 31:25, (((#14 + 0) - #17) - #8)
-Counter in file 0 31:29 -> 31:42, ((((#14 + 0) - #17) - #8) - #24)
-Counter in file 0 31:42 -> 31:43, (((((#14 + 0) - #17) - #8) - #24) - #25)
-Counter in file 0 31:42 -> 31:43, (#24 + #25)
-Counter in file 0 31:46 -> 31:60, #34
-Counter in file 0 31:60 -> 31:61, (#34 - #32)
-Counter in file 0 31:60 -> 31:61, (#31 + #32)
-Counter in file 0 31:61 -> 33:10, #20
-Counter in file 0 33:10 -> 33:11, #21
-Counter in file 0 34:9 -> 34:23, (#20 + #21)
-Counter in file 0 36:9 -> 36:15, #8
-Counter in file 0 39:8 -> 39:12, (#17 + (#20 + #21))
-Counter in file 0 52:13 -> 52:30, #22
-Counter in file 0 53:12 -> 53:16, (#22 + 0)
-Counter in file 0 53:17 -> 55:10, #26
-Counter in file 0 57:12 -> 57:25, (#26 + 0)
-Counter in file 0 57:26 -> 59:10, #27
-Counter in file 0 65:17 -> 65:30, ((#26 + 0) - #27)
-Counter in file 0 66:16 -> 66:29, (((#26 + 0) - #27) - #7)
-Counter in file 0 66:33 -> 66:46, ((((#26 + 0) - #27) - #7) - #37)
-Counter in file 0 66:46 -> 66:47, (#37 + #38)
-Counter in file 0 66:46 -> 66:47, (((((#26 + 0) - #27) - #7) - #37) - #38)
-Counter in file 0 66:50 -> 66:64, #47
-Counter in file 0 66:64 -> 66:65, (#47 - #42)
-Counter in file 0 66:64 -> 66:65, (#41 + #42)
-Counter in file 0 66:65 -> 68:14, #28
-Counter in file 0 68:14 -> 68:15, #29
-Counter in file 0 69:13 -> 69:27, (#28 + #29)
-Counter in file 0 71:13 -> 71:19, #7
-Counter in file 0 73:6 -> 73:7, (#27 + (#28 + #29))
-Counter in file 0 75:9 -> 75:26, ((#27 + (#28 + #29)) + 0)
-Counter in file 0 76:8 -> 76:12, (((#27 + (#28 + #29)) + 0) + 0)
-Counter in file 0 76:13 -> 78:6, #30
-Counter in file 0 80:9 -> 80:10, (#33 + (#35 + #36))
-Counter in file 0 80:16 -> 80:29, (#30 + 0)
-Counter in file 0 80:30 -> 82:6, #33
-Counter in file 0 82:15 -> 82:28, ((#30 + 0) - #33)
-Counter in file 0 83:12 -> 83:25, (((#30 + 0) - #33) - #6)
-Counter in file 0 83:29 -> 83:42, ((((#30 + 0) - #33) - #6) - #39)
-Counter in file 0 83:42 -> 83:43, (#39 + #40)
-Counter in file 0 83:42 -> 83:43, (((((#30 + 0) - #33) - #6) - #39) - #40)
-Counter in file 0 83:46 -> 83:60, #48
-Counter in file 0 83:60 -> 83:61, (#43 + #44)
-Counter in file 0 83:60 -> 83:61, (#48 - #44)
-Counter in file 0 83:61 -> 85:10, #35
-Counter in file 0 85:10 -> 85:11, #36
-Counter in file 0 86:9 -> 86:23, (#35 + #36)
-Counter in file 0 88:13 -> 90:15, #6
-Counter in file 0 93:9 -> 93:10, (#9 + (#10 + #11))
-Counter in file 0 93:16 -> 93:29, ((#33 + (#35 + #36)) + 0)
-Counter in file 0 93:30 -> 95:6, #9
-Counter in file 0 95:15 -> 95:28, ((#33 + (#35 + #36)) - #9)
-Counter in file 0 96:12 -> 96:25, (((#33 + (#35 + #36)) - #9) - #5)
-Counter in file 0 96:29 -> 96:42, ((((#33 + (#35 + #36)) - #9) - #5) - #45)
-Counter in file 0 96:42 -> 96:43, (#45 + #46)
-Counter in file 0 96:42 -> 96:43, (((((#33 + (#35 + #36)) - #9) - #5) - #45) - #46)
-Counter in file 0 96:46 -> 96:60, #51
-Counter in file 0 96:60 -> 96:61, (#49 + #50)
-Counter in file 0 96:60 -> 96:61, (#51 - #50)
-Counter in file 0 96:61 -> 98:10, #10
-Counter in file 0 98:10 -> 98:11, #11
-Counter in file 0 99:9 -> 99:23, (#10 + #11)
-Counter in file 0 101:9 -> 101:15, #5
-Counter in file 0 103:1 -> 103:2, ((#9 + (#10 + #11)) + (((#5 + #6) + (#7 + #8)) + (((#2 + 0) - #3) - #4)))
+Counter in file 0 28:22 -> 30:6, #16
+Counter in file 0 30:15 -> 30:28, ((#14 + 0) - #16)
+Counter in file 0 31:12 -> 31:25, (((#14 + 0) - #16) - #11)
+Counter in file 0 31:29 -> 31:42, ((((#14 + 0) - #16) - #11) - #23)
+Counter in file 0 31:46 -> 31:60, #31
+Counter in file 0 31:61 -> 33:10, #18
+Counter in file 0 33:10 -> 33:11, #19
+Counter in file 0 34:9 -> 34:23, (#18 + #19)
+Counter in file 0 36:9 -> 36:15, #11
+Counter in file 0 39:8 -> 39:12, (#16 + (#18 + #19))
+Counter in file 0 40:13 -> 41:16, #20
+Counter in file 0 41:17 -> 43:10, #24
+Counter in file 0 45:12 -> 45:25, (#24 + 0)
+Counter in file 0 45:26 -> 47:10, #25
+Counter in file 0 48:17 -> 48:30, ((#24 + 0) - #25)
+Counter in file 0 49:16 -> 49:29, (((#24 + 0) - #25) - #10)
+Counter in file 0 49:33 -> 49:46, ((((#24 + 0) - #25) - #10) - #35)
+Counter in file 0 49:50 -> 49:64, #40
+Counter in file 0 49:65 -> 51:14, #26
+Counter in file 0 51:14 -> 51:15, #27
+Counter in file 0 52:13 -> 52:27, (#26 + #27)
+Counter in file 0 54:13 -> 54:19, #10
+Counter in file 0 59:9 -> 60:12, ((#25 + (#26 + #27)) + 0)
+Counter in file 0 60:13 -> 62:6, #28
+Counter in file 0 64:9 -> 64:10, (#30 + (#33 + #34))
+Counter in file 0 64:16 -> 64:29, (#28 + 0)
+Counter in file 0 64:30 -> 66:6, #30
+Counter in file 0 66:15 -> 66:28, ((#28 + 0) - #30)
+Counter in file 0 67:12 -> 67:25, (((#28 + 0) - #30) - #9)
+Counter in file 0 67:29 -> 67:42, ((((#28 + 0) - #30) - #9) - #36)
+Counter in file 0 67:46 -> 67:60, #42
+Counter in file 0 67:61 -> 69:10, #33
+Counter in file 0 69:10 -> 69:11, #34
+Counter in file 0 70:9 -> 70:23, (#33 + #34)
+Counter in file 0 72:13 -> 74:15, #9
+Counter in file 0 77:9 -> 77:10, (#5 + (#6 + #7))
+Counter in file 0 77:16 -> 77:29, ((#30 + (#33 + #34)) + 0)
+Counter in file 0 77:30 -> 79:6, #5
+Counter in file 0 79:15 -> 79:28, ((#30 + (#33 + #34)) - #5)
+Counter in file 0 80:12 -> 80:25, (((#30 + (#33 + #34)) - #5) - #8)
+Counter in file 0 80:29 -> 80:42, ((((#30 + (#33 + #34)) - #5) - #8) - #39)
+Counter in file 0 80:46 -> 80:60, #45
+Counter in file 0 80:61 -> 82:10, #6
+Counter in file 0 82:10 -> 82:11, #7
+Counter in file 0 83:9 -> 83:23, (#6 + #7)
+Counter in file 0 85:9 -> 85:15, #8
+Counter in file 0 87:1 -> 87:2, ((#5 + (#6 + #7)) + (((#8 + #9) + (#10 + #11)) + (((#2 + 0) - #3) - #4)))
 Emitting segments for file: ../coverage/conditions.rs
 Combined regions:
-  4:9 -> 4:26 (count=1)
-  5:8 -> 5:12 (count=1)
+  3:1 -> 3:11 (count=1)
+  4:9 -> 5:12 (count=1)
   5:13 -> 7:6 (count=1)
   10:9 -> 10:10 (count=1)
   10:16 -> 10:29 (count=1)
@@ -97,78 +73,64 @@ Combined regions:
   13:15 -> 13:28 (count=0)
   14:12 -> 14:25 (count=0)
   14:29 -> 14:42 (count=0)
-  14:42 -> 14:43 (count=0)
   14:46 -> 14:60 (count=0)
-  14:60 -> 14:61 (count=0)
   14:61 -> 16:10 (count=0)
   16:10 -> 16:11 (count=0)
   17:9 -> 18:18 (count=0)
   20:9 -> 20:15 (count=0)
-  23:9 -> 23:26 (count=1)
-  24:8 -> 24:12 (count=1)
+  23:9 -> 24:12 (count=1)
   24:13 -> 26:6 (count=1)
   28:8 -> 28:21 (count=1)
   28:22 -> 30:6 (count=1)
   30:15 -> 30:28 (count=0)
   31:12 -> 31:25 (count=0)
   31:29 -> 31:42 (count=0)
-  31:42 -> 31:43 (count=0)
   31:46 -> 31:60 (count=0)
-  31:60 -> 31:61 (count=0)
   31:61 -> 33:10 (count=0)
   33:10 -> 33:11 (count=0)
   34:9 -> 34:23 (count=0)
   36:9 -> 36:15 (count=0)
   39:8 -> 39:12 (count=1)
-  52:13 -> 52:30 (count=1)
-  53:12 -> 53:16 (count=1)
-  53:17 -> 55:10 (count=1)
-  57:12 -> 57:25 (count=1)
-  57:26 -> 59:10 (count=1)
-  65:17 -> 65:30 (count=0)
-  66:16 -> 66:29 (count=0)
-  66:33 -> 66:46 (count=0)
-  66:46 -> 66:47 (count=0)
-  66:50 -> 66:64 (count=0)
-  66:64 -> 66:65 (count=0)
-  66:65 -> 68:14 (count=0)
-  68:14 -> 68:15 (count=0)
-  69:13 -> 69:27 (count=0)
-  71:13 -> 71:19 (count=0)
-  73:6 -> 73:7 (count=1)
-  75:9 -> 75:26 (count=1)
-  76:8 -> 76:12 (count=1)
-  76:13 -> 78:6 (count=1)
-  80:9 -> 80:10 (count=0)
-  80:16 -> 80:29 (count=1)
-  80:30 -> 82:6 (count=0)
-  82:15 -> 82:28 (count=1)
-  83:12 -> 83:25 (count=0)
-  83:29 -> 83:42 (count=0)
-  83:42 -> 83:43 (count=0)
-  83:46 -> 83:60 (count=0)
-  83:60 -> 83:61 (count=0)
-  83:61 -> 85:10 (count=0)
-  85:10 -> 85:11 (count=0)
-  86:9 -> 86:23 (count=0)
-  88:13 -> 90:15 (count=1)
-  93:9 -> 93:10 (count=0)
-  93:16 -> 93:29 (count=0)
-  93:30 -> 95:6 (count=0)
-  95:15 -> 95:28 (count=0)
-  96:12 -> 96:25 (count=0)
-  96:29 -> 96:42 (count=0)
-  96:42 -> 96:43 (count=0)
-  96:46 -> 96:60 (count=0)
-  96:60 -> 96:61 (count=0)
-  96:61 -> 98:10 (count=0)
-  98:10 -> 98:11 (count=0)
-  99:9 -> 99:23 (count=0)
-  101:9 -> 101:15 (count=0)
-  103:1 -> 103:2 (count=1)
+  40:13 -> 41:16 (count=1)
+  41:17 -> 43:10 (count=1)
+  45:12 -> 45:25 (count=1)
+  45:26 -> 47:10 (count=1)
+  48:17 -> 48:30 (count=0)
+  49:16 -> 49:29 (count=0)
+  49:33 -> 49:46 (count=0)
+  49:50 -> 49:64 (count=0)
+  49:65 -> 51:14 (count=0)
+  51:14 -> 51:15 (count=0)
+  52:13 -> 52:27 (count=0)
+  54:13 -> 54:19 (count=0)
+  59:9 -> 60:12 (count=1)
+  60:13 -> 62:6 (count=1)
+  64:9 -> 64:10 (count=0)
+  64:16 -> 64:29 (count=1)
+  64:30 -> 66:6 (count=0)
+  66:15 -> 66:28 (count=1)
+  67:12 -> 67:25 (count=0)
+  67:29 -> 67:42 (count=0)
+  67:46 -> 67:60 (count=0)
+  67:61 -> 69:10 (count=0)
+  69:10 -> 69:11 (count=0)
+  70:9 -> 70:23 (count=0)
+  72:13 -> 74:15 (count=1)
+  77:9 -> 77:10 (count=0)
+  77:16 -> 77:29 (count=0)
+  77:30 -> 79:6 (count=0)
+  79:15 -> 79:28 (count=0)
+  80:12 -> 80:25 (count=0)
+  80:29 -> 80:42 (count=0)
+  80:46 -> 80:60 (count=0)
+  80:61 -> 82:10 (count=0)
+  82:10 -> 82:11 (count=0)
+  83:9 -> 83:23 (count=0)
+  85:9 -> 85:15 (count=0)
+  87:1 -> 87:2 (count=1)
+Segment at 3:1 (count = 1), RegionEntry
+Segment at 3:11 (count = 0), Skipped
 Segment at 4:9 (count = 1), RegionEntry
-Segment at 4:26 (count = 0), Skipped
-Segment at 5:8 (count = 1), RegionEntry
 Segment at 5:12 (count = 0), Skipped
 Segment at 5:13 (count = 1), RegionEntry
 Segment at 7:6 (count = 0), Skipped
@@ -183,10 +145,9 @@ Segment at 13:28 (count = 0), Skipped
 Segment at 14:12 (count = 0), RegionEntry
 Segment at 14:25 (count = 0), Skipped
 Segment at 14:29 (count = 0), RegionEntry
-Segment at 14:42 (count = 0), RegionEntry
-Segment at 14:43 (count = 0), Skipped
+Segment at 14:42 (count = 0), Skipped
 Segment at 14:46 (count = 0), RegionEntry
-Segment at 14:60 (count = 0), RegionEntry
+Segment at 14:60 (count = 0), Skipped
 Segment at 14:61 (count = 0), RegionEntry
 Segment at 16:10 (count = 0), RegionEntry
 Segment at 16:11 (count = 0), Skipped
@@ -195,8 +156,6 @@ Segment at 18:18 (count = 0), Skipped
 Segment at 20:9 (count = 0), RegionEntry
 Segment at 20:15 (count = 0), Skipped
 Segment at 23:9 (count = 1), RegionEntry
-Segment at 23:26 (count = 0), Skipped
-Segment at 24:8 (count = 1), RegionEntry
 Segment at 24:12 (count = 0), Skipped
 Segment at 24:13 (count = 1), RegionEntry
 Segment at 26:6 (count = 0), Skipped
@@ -209,10 +168,9 @@ Segment at 30:28 (count = 0), Skipped
 Segment at 31:12 (count = 0), RegionEntry
 Segment at 31:25 (count = 0), Skipped
 Segment at 31:29 (count = 0), RegionEntry
-Segment at 31:42 (count = 0), RegionEntry
-Segment at 31:43 (count = 0), Skipped
+Segment at 31:42 (count = 0), Skipped
 Segment at 31:46 (count = 0), RegionEntry
-Segment at 31:60 (count = 0), RegionEntry
+Segment at 31:60 (count = 0), Skipped
 Segment at 31:61 (count = 0), RegionEntry
 Segment at 33:10 (count = 0), RegionEntry
 Segment at 33:11 (count = 0), Skipped
@@ -222,83 +180,74 @@ Segment at 36:9 (count = 0), RegionEntry
 Segment at 36:15 (count = 0), Skipped
 Segment at 39:8 (count = 1), RegionEntry
 Segment at 39:12 (count = 0), Skipped
-Segment at 52:13 (count = 1), RegionEntry
-Segment at 52:30 (count = 0), Skipped
-Segment at 53:12 (count = 1), RegionEntry
-Segment at 53:16 (count = 0), Skipped
-Segment at 53:17 (count = 1), RegionEntry
-Segment at 55:10 (count = 0), Skipped
-Segment at 57:12 (count = 1), RegionEntry
-Segment at 57:25 (count = 0), Skipped
-Segment at 57:26 (count = 1), RegionEntry
-Segment at 59:10 (count = 0), Skipped
-Segment at 65:17 (count = 0), RegionEntry
-Segment at 65:30 (count = 0), Skipped
-Segment at 66:16 (count = 0), RegionEntry
-Segment at 66:29 (count = 0), Skipped
-Segment at 66:33 (count = 0), RegionEntry
-Segment at 66:46 (count = 0), RegionEntry
-Segment at 66:47 (count = 0), Skipped
-Segment at 66:50 (count = 0), RegionEntry
-Segment at 66:64 (count = 0), RegionEntry
-Segment at 66:65 (count = 0), RegionEntry
-Segment at 68:14 (count = 0), RegionEntry
-Segment at 68:15 (count = 0), Skipped
-Segment at 69:13 (count = 0), RegionEntry
-Segment at 69:27 (count = 0), Skipped
-Segment at 71:13 (count = 0), RegionEntry
-Segment at 71:19 (count = 0), Skipped
-Segment at 73:6 (count = 1), RegionEntry
-Segment at 73:7 (count = 0), Skipped
-Segment at 75:9 (count = 1), RegionEntry
-Segment at 75:26 (count = 0), Skipped
-Segment at 76:8 (count = 1), RegionEntry
-Segment at 76:12 (count = 0), Skipped
-Segment at 76:13 (count = 1), RegionEntry
-Segment at 78:6 (count = 0), Skipped
-Segment at 80:9 (count = 0), RegionEntry
-Segment at 80:10 (count = 0), Skipped
-Segment at 80:16 (count = 1), RegionEntry
-Segment at 80:29 (count = 0), Skipped
-Segment at 80:30 (count = 0), RegionEntry
-Segment at 82:6 (count = 0), Skipped
-Segment at 82:15 (count = 1), RegionEntry
-Segment at 82:28 (count = 0), Skipped
-Segment at 83:12 (count = 0), RegionEntry
-Segment at 83:25 (count = 0), Skipped
-Segment at 83:29 (count = 0), RegionEntry
-Segment at 83:42 (count = 0), RegionEntry
-Segment at 83:43 (count = 0), Skipped
-Segment at 83:46 (count = 0), RegionEntry
-Segment at 83:60 (count = 0), RegionEntry
-Segment at 83:61 (count = 0), RegionEntry
-Segment at 85:10 (count = 0), RegionEntry
-Segment at 85:11 (count = 0), Skipped
-Segment at 86:9 (count = 0), RegionEntry
-Segment at 86:23 (count = 0), Skipped
-Segment at 88:13 (count = 1), RegionEntry
-Segment at 90:15 (count = 0), Skipped
-Segment at 93:9 (count = 0), RegionEntry
-Segment at 93:10 (count = 0), Skipped
-Segment at 93:16 (count = 0), RegionEntry
-Segment at 93:29 (count = 0), Skipped
-Segment at 93:30 (count = 0), RegionEntry
-Segment at 95:6 (count = 0), Skipped
-Segment at 95:15 (count = 0), RegionEntry
-Segment at 95:28 (count = 0), Skipped
-Segment at 96:12 (count = 0), RegionEntry
-Segment at 96:25 (count = 0), Skipped
-Segment at 96:29 (count = 0), RegionEntry
-Segment at 96:42 (count = 0), RegionEntry
-Segment at 96:43 (count = 0), Skipped
-Segment at 96:46 (count = 0), RegionEntry
-Segment at 96:60 (count = 0), RegionEntry
-Segment at 96:61 (count = 0), RegionEntry
-Segment at 98:10 (count = 0), RegionEntry
-Segment at 98:11 (count = 0), Skipped
-Segment at 99:9 (count = 0), RegionEntry
-Segment at 99:23 (count = 0), Skipped
-Segment at 101:9 (count = 0), RegionEntry
-Segment at 101:15 (count = 0), Skipped
-Segment at 103:1 (count = 1), RegionEntry
-Segment at 103:2 (count = 0), Skipped
+Segment at 40:13 (count = 1), RegionEntry
+Segment at 41:16 (count = 0), Skipped
+Segment at 41:17 (count = 1), RegionEntry
+Segment at 43:10 (count = 0), Skipped
+Segment at 45:12 (count = 1), RegionEntry
+Segment at 45:25 (count = 0), Skipped
+Segment at 45:26 (count = 1), RegionEntry
+Segment at 47:10 (count = 0), Skipped
+Segment at 48:17 (count = 0), RegionEntry
+Segment at 48:30 (count = 0), Skipped
+Segment at 49:16 (count = 0), RegionEntry
+Segment at 49:29 (count = 0), Skipped
+Segment at 49:33 (count = 0), RegionEntry
+Segment at 49:46 (count = 0), Skipped
+Segment at 49:50 (count = 0), RegionEntry
+Segment at 49:64 (count = 0), Skipped
+Segment at 49:65 (count = 0), RegionEntry
+Segment at 51:14 (count = 0), RegionEntry
+Segment at 51:15 (count = 0), Skipped
+Segment at 52:13 (count = 0), RegionEntry
+Segment at 52:27 (count = 0), Skipped
+Segment at 54:13 (count = 0), RegionEntry
+Segment at 54:19 (count = 0), Skipped
+Segment at 59:9 (count = 1), RegionEntry
+Segment at 60:12 (count = 0), Skipped
+Segment at 60:13 (count = 1), RegionEntry
+Segment at 62:6 (count = 0), Skipped
+Segment at 64:9 (count = 0), RegionEntry
+Segment at 64:10 (count = 0), Skipped
+Segment at 64:16 (count = 1), RegionEntry
+Segment at 64:29 (count = 0), Skipped
+Segment at 64:30 (count = 0), RegionEntry
+Segment at 66:6 (count = 0), Skipped
+Segment at 66:15 (count = 1), RegionEntry
+Segment at 66:28 (count = 0), Skipped
+Segment at 67:12 (count = 0), RegionEntry
+Segment at 67:25 (count = 0), Skipped
+Segment at 67:29 (count = 0), RegionEntry
+Segment at 67:42 (count = 0), Skipped
+Segment at 67:46 (count = 0), RegionEntry
+Segment at 67:60 (count = 0), Skipped
+Segment at 67:61 (count = 0), RegionEntry
+Segment at 69:10 (count = 0), RegionEntry
+Segment at 69:11 (count = 0), Skipped
+Segment at 70:9 (count = 0), RegionEntry
+Segment at 70:23 (count = 0), Skipped
+Segment at 72:13 (count = 1), RegionEntry
+Segment at 74:15 (count = 0), Skipped
+Segment at 77:9 (count = 0), RegionEntry
+Segment at 77:10 (count = 0), Skipped
+Segment at 77:16 (count = 0), RegionEntry
+Segment at 77:29 (count = 0), Skipped
+Segment at 77:30 (count = 0), RegionEntry
+Segment at 79:6 (count = 0), Skipped
+Segment at 79:15 (count = 0), RegionEntry
+Segment at 79:28 (count = 0), Skipped
+Segment at 80:12 (count = 0), RegionEntry
+Segment at 80:25 (count = 0), Skipped
+Segment at 80:29 (count = 0), RegionEntry
+Segment at 80:42 (count = 0), Skipped
+Segment at 80:46 (count = 0), RegionEntry
+Segment at 80:60 (count = 0), Skipped
+Segment at 80:61 (count = 0), RegionEntry
+Segment at 82:10 (count = 0), RegionEntry
+Segment at 82:11 (count = 0), Skipped
+Segment at 83:9 (count = 0), RegionEntry
+Segment at 83:23 (count = 0), Skipped
+Segment at 85:9 (count = 0), RegionEntry
+Segment at 85:15 (count = 0), Skipped
+Segment at 87:1 (count = 1), RegionEntry
+Segment at 87:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.dead_code.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.dead_code.txt
new file mode 100644
index 0000000000000..a2187d477c820
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.dead_code.txt
@@ -0,0 +1,47 @@
+Counter in file 0 3:1 -> 10:15, 0
+Counter in file 0 10:16 -> 12:6, 0
+Counter in file 0 12:6 -> 12:7, 0
+Counter in file 0 13:1 -> 13:2, 0
+Counter in file 0 15:1 -> 22:15, 0
+Counter in file 0 22:16 -> 24:6, 0
+Counter in file 0 24:6 -> 24:7, 0
+Counter in file 0 25:1 -> 25:2, 0
+Counter in file 0 27:1 -> 34:15, #1
+Counter in file 0 34:16 -> 36:6, #2
+Counter in file 0 36:6 -> 36:7, (#1 - #2)
+Counter in file 0 37:1 -> 37:2, (#2 + (#1 - #2))
+Emitting segments for file: ../coverage/dead_code.rs
+Combined regions:
+  3:1 -> 10:15 (count=0)
+  10:16 -> 12:6 (count=0)
+  12:6 -> 12:7 (count=0)
+  13:1 -> 13:2 (count=0)
+  15:1 -> 22:15 (count=0)
+  22:16 -> 24:6 (count=0)
+  24:6 -> 24:7 (count=0)
+  25:1 -> 25:2 (count=0)
+  27:1 -> 34:15 (count=1)
+  34:16 -> 36:6 (count=1)
+  36:6 -> 36:7 (count=0)
+  37:1 -> 37:2 (count=1)
+Segment at 3:1 (count = 0), RegionEntry
+Segment at 10:15 (count = 0), Skipped
+Segment at 10:16 (count = 0), RegionEntry
+Segment at 12:6 (count = 0), RegionEntry
+Segment at 12:7 (count = 0), Skipped
+Segment at 13:1 (count = 0), RegionEntry
+Segment at 13:2 (count = 0), Skipped
+Segment at 15:1 (count = 0), RegionEntry
+Segment at 22:15 (count = 0), Skipped
+Segment at 22:16 (count = 0), RegionEntry
+Segment at 24:6 (count = 0), RegionEntry
+Segment at 24:7 (count = 0), Skipped
+Segment at 25:1 (count = 0), RegionEntry
+Segment at 25:2 (count = 0), Skipped
+Segment at 27:1 (count = 1), RegionEntry
+Segment at 34:15 (count = 0), Skipped
+Segment at 34:16 (count = 1), RegionEntry
+Segment at 36:6 (count = 0), RegionEntry
+Segment at 36:7 (count = 0), Skipped
+Segment at 37:1 (count = 1), RegionEntry
+Segment at 37:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.drop_trait.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.drop_trait.txt
index 375025fe8bcc2..66c51e3a2982d 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.drop_trait.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.drop_trait.txt
@@ -1,20 +1,16 @@
-Counter in file 0 9:24 -> 11:6, #1
-Counter in file 0 15:9 -> 17:42, #1
-Counter in file 0 19:8 -> 19:12, (#1 + 0)
+Counter in file 0 9:5 -> 11:6, #1
+Counter in file 0 14:1 -> 19:12, #1
 Counter in file 0 20:9 -> 21:22, #2
 Counter in file 0 27:1 -> 27:2, (#2 + 0)
 Emitting segments for file: ../coverage/drop_trait.rs
 Combined regions:
-  9:24 -> 11:6 (count=2)
-  15:9 -> 17:42 (count=1)
-  19:8 -> 19:12 (count=1)
+  9:5 -> 11:6 (count=2)
+  14:1 -> 19:12 (count=1)
   20:9 -> 21:22 (count=1)
   27:1 -> 27:2 (count=1)
-Segment at 9:24 (count = 2), RegionEntry
+Segment at 9:5 (count = 2), RegionEntry
 Segment at 11:6 (count = 0), Skipped
-Segment at 15:9 (count = 1), RegionEntry
-Segment at 17:42 (count = 0), Skipped
-Segment at 19:8 (count = 1), RegionEntry
+Segment at 14:1 (count = 1), RegionEntry
 Segment at 19:12 (count = 0), Skipped
 Segment at 20:9 (count = 1), RegionEntry
 Segment at 21:22 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.generics.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.generics.txt
index 013a69ed3983a..e2cbf6f709e6e 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.generics.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.generics.txt
@@ -1,48 +1,44 @@
-Counter in file 0 17:24 -> 19:6, #1
-Counter in file 0 17:24 -> 19:6, #1
-Counter in file 0 23:9 -> 28:28, #1
-Counter in file 0 30:8 -> 30:12, (#1 + 0)
+Counter in file 0 17:5 -> 19:6, #1
+Counter in file 0 17:5 -> 19:6, #1
+Counter in file 0 22:1 -> 30:12, #1
 Counter in file 0 31:9 -> 32:22, #2
-Counter in file 0 38:1 -> 38:2, (#2 + 0)
-Counter in file 0 10:49 -> 12:6, #1
-Counter in file 0 10:49 -> 12:6, #1
+Counter in file 0 42:1 -> 42:2, (#2 + 0)
+Counter in file 0 10:5 -> 12:6, #1
+Counter in file 0 10:5 -> 12:6, #1
 Emitting segments for file: ../coverage/generics.rs
 Combined regions:
-  10:49 -> 12:6 (count=3)
-  17:24 -> 19:6 (count=2)
-  23:9 -> 28:28 (count=1)
-  30:8 -> 30:12 (count=1)
+  10:5 -> 12:6 (count=3)
+  17:5 -> 19:6 (count=2)
+  22:1 -> 30:12 (count=1)
   31:9 -> 32:22 (count=1)
-  38:1 -> 38:2 (count=1)
-Segment at 10:49 (count = 3), RegionEntry
+  42:1 -> 42:2 (count=1)
+Segment at 10:5 (count = 3), RegionEntry
 Segment at 12:6 (count = 0), Skipped
-Segment at 17:24 (count = 2), RegionEntry
+Segment at 17:5 (count = 2), RegionEntry
 Segment at 19:6 (count = 0), Skipped
-Segment at 23:9 (count = 1), RegionEntry
-Segment at 28:28 (count = 0), Skipped
-Segment at 30:8 (count = 1), RegionEntry
+Segment at 22:1 (count = 1), RegionEntry
 Segment at 30:12 (count = 0), Skipped
 Segment at 31:9 (count = 1), RegionEntry
 Segment at 32:22 (count = 0), Skipped
-Segment at 38:1 (count = 1), RegionEntry
-Segment at 38:2 (count = 0), Skipped
+Segment at 42:1 (count = 1), RegionEntry
+Segment at 42:2 (count = 0), Skipped
 Emitting segments for function: _RNvMCs4fqI2P2rA04_8genericsINtB2_8FireworkdE12set_strengthB2_
 Combined regions:
-  10:49 -> 12:6 (count=2)
-Segment at 10:49 (count = 2), RegionEntry
+  10:5 -> 12:6 (count=2)
+Segment at 10:5 (count = 2), RegionEntry
 Segment at 12:6 (count = 0), Skipped
 Emitting segments for function: _RNvMCs4fqI2P2rA04_8genericsINtB2_8FireworklE12set_strengthB2_
 Combined regions:
-  10:49 -> 12:6 (count=1)
-Segment at 10:49 (count = 1), RegionEntry
+  10:5 -> 12:6 (count=1)
+Segment at 10:5 (count = 1), RegionEntry
 Segment at 12:6 (count = 0), Skipped
-Emitting segments for function: _RNvXs_Cs4fqI2P2rA04_8genericsINtB4_8FireworklENtNtNtCs7f2nZg1zwMz_4core3ops4drop4Drop4dropB4_
+Emitting segments for function: _RNvXs_Cs4fqI2P2rA04_8genericsINtB4_8FireworklENtNtNtCs3rFBWs28XFJ_4core3ops4drop4Drop4dropB4_
 Combined regions:
-  17:24 -> 19:6 (count=1)
-Segment at 17:24 (count = 1), RegionEntry
+  17:5 -> 19:6 (count=1)
+Segment at 17:5 (count = 1), RegionEntry
 Segment at 19:6 (count = 0), Skipped
-Emitting segments for function: _RNvXs_Cs4fqI2P2rA04_8genericsINtB4_8FireworkdENtNtNtCs7f2nZg1zwMz_4core3ops4drop4Drop4dropB4_
+Emitting segments for function: _RNvXs_Cs4fqI2P2rA04_8genericsINtB4_8FireworkdENtNtNtCs3rFBWs28XFJ_4core3ops4drop4Drop4dropB4_
 Combined regions:
-  17:24 -> 19:6 (count=1)
-Segment at 17:24 (count = 1), RegionEntry
+  17:5 -> 19:6 (count=1)
+Segment at 17:5 (count = 1), RegionEntry
 Segment at 19:6 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.if.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.if.txt
index c2bef365ea9d8..2e802a462ea2c 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.if.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.if.txt
@@ -1,18 +1,14 @@
-Counter in file 0 8:5 -> 18:10, #1
-Counter in file 0 21:9 -> 21:16, (#1 + 0)
+Counter in file 0 3:1 -> 21:16, #1
 Counter in file 0 22:5 -> 27:6, #2
 Counter in file 0 27:6 -> 27:7, (#1 - #2)
 Counter in file 0 28:1 -> 28:2, (#2 + (#1 - #2))
 Emitting segments for file: ../coverage/if.rs
 Combined regions:
-  8:5 -> 18:10 (count=1)
-  21:9 -> 21:16 (count=1)
+  3:1 -> 21:16 (count=1)
   22:5 -> 27:6 (count=1)
   27:6 -> 27:7 (count=0)
   28:1 -> 28:2 (count=1)
-Segment at 8:5 (count = 1), RegionEntry
-Segment at 18:10 (count = 0), Skipped
-Segment at 21:9 (count = 1), RegionEntry
+Segment at 3:1 (count = 1), RegionEntry
 Segment at 21:16 (count = 0), Skipped
 Segment at 22:5 (count = 1), RegionEntry
 Segment at 27:6 (count = 0), RegionEntry
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.if_else.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.if_else.txt
index faf5c094bbaaa..03b35b0f00999 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.if_else.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.if_else.txt
@@ -1,4 +1,4 @@
-Counter in file 0 7:9 -> 11:16, #1
+Counter in file 0 3:1 -> 11:16, #1
 Counter in file 0 12:5 -> 17:6, #2
 Counter in file 0 20:9 -> 22:16, (#1 - #2)
 Counter in file 0 26:9 -> 26:16, (#2 + (#1 - #2))
@@ -7,14 +7,14 @@ Counter in file 0 34:5 -> 39:6, ((#2 + (#1 - #2)) - #3)
 Counter in file 0 40:1 -> 40:2, (#3 + ((#2 + (#1 - #2)) - #3))
 Emitting segments for file: ../coverage/if_else.rs
 Combined regions:
-  7:9 -> 11:16 (count=1)
+  3:1 -> 11:16 (count=1)
   12:5 -> 17:6 (count=1)
   20:9 -> 22:16 (count=0)
   26:9 -> 26:16 (count=1)
   27:5 -> 32:6 (count=1)
   34:5 -> 39:6 (count=0)
   40:1 -> 40:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
+Segment at 3:1 (count = 1), RegionEntry
 Segment at 11:16 (count = 0), Skipped
 Segment at 12:5 (count = 1), RegionEntry
 Segment at 17:6 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.inner_items.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.inner_items.txt
index e4dfae7681783..5dc704d6149f1 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.inner_items.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.inner_items.txt
@@ -1,39 +1,39 @@
-Counter in file 0 19:13 -> 22:6, #1
-Counter in file 0 7:9 -> 9:26, #1
-Counter in file 0 10:8 -> 10:15, (#1 + 0)
+Counter in file 0 18:5 -> 22:6, #1
+Counter in file 0 3:1 -> 3:11, #1
+Counter in file 0 7:9 -> 10:15, (#1 + 0)
 Counter in file 0 10:16 -> 12:6, #2
 Counter in file 0 12:6 -> 12:7, (#1 - #2)
 Counter in file 0 48:8 -> 48:15, (#2 + (#1 - #2))
 Counter in file 0 48:16 -> 50:6, #3
 Counter in file 0 50:6 -> 50:7, ((#2 + (#1 - #2)) - #3)
 Counter in file 0 52:9 -> 57:2, (#3 + ((#2 + (#1 - #2)) - #3))
-Counter in file 0 33:42 -> 36:10, #1
-Counter in file 0 40:45 -> 43:10, #1
+Counter in file 0 33:9 -> 36:10, #1
+Counter in file 0 40:9 -> 43:10, #1
 Emitting segments for file: ../coverage/inner_items.rs
 Combined regions:
-  7:9 -> 9:26 (count=1)
-  10:8 -> 10:15 (count=1)
+  3:1 -> 3:11 (count=1)
+  7:9 -> 10:15 (count=1)
   10:16 -> 12:6 (count=1)
   12:6 -> 12:7 (count=0)
-  19:13 -> 22:6 (count=3)
-  33:42 -> 36:10 (count=1)
-  40:45 -> 43:10 (count=1)
+  18:5 -> 22:6 (count=3)
+  33:9 -> 36:10 (count=1)
+  40:9 -> 43:10 (count=1)
   48:8 -> 48:15 (count=1)
   48:16 -> 50:6 (count=1)
   50:6 -> 50:7 (count=0)
   52:9 -> 57:2 (count=1)
+Segment at 3:1 (count = 1), RegionEntry
+Segment at 3:11 (count = 0), Skipped
 Segment at 7:9 (count = 1), RegionEntry
-Segment at 9:26 (count = 0), Skipped
-Segment at 10:8 (count = 1), RegionEntry
 Segment at 10:15 (count = 0), Skipped
 Segment at 10:16 (count = 1), RegionEntry
 Segment at 12:6 (count = 0), RegionEntry
 Segment at 12:7 (count = 0), Skipped
-Segment at 19:13 (count = 3), RegionEntry
+Segment at 18:5 (count = 3), RegionEntry
 Segment at 22:6 (count = 0), Skipped
-Segment at 33:42 (count = 1), RegionEntry
+Segment at 33:9 (count = 1), RegionEntry
 Segment at 36:10 (count = 0), Skipped
-Segment at 40:45 (count = 1), RegionEntry
+Segment at 40:9 (count = 1), RegionEntry
 Segment at 43:10 (count = 0), Skipped
 Segment at 48:8 (count = 1), RegionEntry
 Segment at 48:15 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.lazy_boolean.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.lazy_boolean.txt
index 8e56d79d9d2aa..d5667fb861e2c 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.lazy_boolean.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.lazy_boolean.txt
@@ -1,62 +1,48 @@
-Counter in file 0 7:9 -> 9:42, #1
-Counter in file 0 10:8 -> 10:15, (#1 + 0)
+Counter in file 0 3:1 -> 10:15, #1
 Counter in file 0 10:16 -> 14:6, #2
 Counter in file 0 14:6 -> 14:7, (#1 - #2)
 Counter in file 0 16:9 -> 16:17, ((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4))
 Counter in file 0 18:13 -> 18:18, (#2 + (#1 - #2))
 Counter in file 0 20:13 -> 20:18, ((#2 + (#1 - #2)) - #3)
-Counter in file 0 20:18 -> 20:19, (#3 + #4)
-Counter in file 0 20:18 -> 20:19, (((#2 + (#1 - #2)) - #3) - #4)
 Counter in file 0 23:9 -> 23:17, ((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6))
 Counter in file 0 25:13 -> 25:18, (((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) + 0)
 Counter in file 0 27:13 -> 27:18, (((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5)
-Counter in file 0 27:18 -> 27:19, (#5 + #6)
-Counter in file 0 27:18 -> 27:19, ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)
-Counter in file 0 29:9 -> 29:17, ((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8))
+Counter in file 0 29:9 -> 29:17, (#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8)))
 Counter in file 0 29:20 -> 29:25, (((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) + 0)
 Counter in file 0 29:29 -> 29:34, #7
-Counter in file 0 29:34 -> 29:35, ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)
-Counter in file 0 29:34 -> 29:35, (#7 - #8)
-Counter in file 0 30:9 -> 30:17, ((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10))
-Counter in file 0 30:20 -> 30:25, (((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) + 0)
+Counter in file 0 30:9 -> 30:17, (#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10)))
+Counter in file 0 30:20 -> 30:25, ((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) + 0)
 Counter in file 0 30:29 -> 30:34, #9
-Counter in file 0 30:34 -> 30:35, ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)
-Counter in file 0 30:34 -> 30:35, (#9 - #10)
-Counter in file 0 33:9 -> 34:16, (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) + 0)
+Counter in file 0 33:9 -> 34:16, ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) + 0)
 Counter in file 0 35:5 -> 38:6, #11
-Counter in file 0 38:6 -> 38:7, (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)
-Counter in file 0 41:9 -> 41:16, (#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11))
+Counter in file 0 38:6 -> 38:7, ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) - #11)
+Counter in file 0 41:9 -> 41:16, (#11 + ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) - #11))
 Counter in file 0 42:5 -> 45:6, #12
-Counter in file 0 47:5 -> 50:6, ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)
-Counter in file 0 52:8 -> 52:16, (#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12))
+Counter in file 0 47:5 -> 50:6, ((#11 + ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) - #11)) - #12)
+Counter in file 0 52:8 -> 52:16, (#12 + ((#11 + ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) - #11)) - #12))
 Counter in file 0 52:17 -> 54:6, #13
-Counter in file 0 54:6 -> 54:7, ((#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)) - #13)
-Counter in file 0 56:8 -> 56:15, (#13 + ((#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)) - #13))
+Counter in file 0 54:6 -> 54:7, ((#12 + ((#11 + ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) - #11)) - #12)) - #13)
+Counter in file 0 56:8 -> 56:15, (#13 + ((#12 + ((#11 + ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) - #11)) - #12)) - #13))
 Counter in file 0 56:16 -> 58:6, #14
-Counter in file 0 58:12 -> 60:6, ((#13 + ((#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)) - #13)) - #14)
-Counter in file 0 61:1 -> 61:2, (#14 + ((#13 + ((#12 + ((#11 + (((#9 - #10) + ((((#7 - #8) + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + #8)) - #9) + #10)) - #11)) - #12)) - #13)) - #14))
+Counter in file 0 58:12 -> 60:6, ((#13 + ((#12 + ((#11 + ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) - #11)) - #12)) - #13)) - #14)
+Counter in file 0 61:1 -> 61:2, (#14 + ((#13 + ((#12 + ((#11 + ((#10 + (((#8 + ((((#5 + #6) + ((((#3 + #4) + (((#2 + (#1 - #2)) - #3) - #4)) - #5) - #6)) - #7) + (#7 - #8))) - #9) + (#9 - #10))) - #11)) - #12)) - #13)) - #14))
 Emitting segments for file: ../coverage/lazy_boolean.rs
 Combined regions:
-  7:9 -> 9:42 (count=1)
-  10:8 -> 10:15 (count=1)
+  3:1 -> 10:15 (count=1)
   10:16 -> 14:6 (count=1)
   14:6 -> 14:7 (count=0)
   16:9 -> 16:17 (count=1)
   18:13 -> 18:18 (count=1)
   20:13 -> 20:18 (count=0)
-  20:18 -> 20:19 (count=1)
   23:9 -> 23:17 (count=1)
   25:13 -> 25:18 (count=1)
   27:13 -> 27:18 (count=1)
-  27:18 -> 27:19 (count=1)
   29:9 -> 29:17 (count=1)
   29:20 -> 29:25 (count=1)
   29:29 -> 29:34 (count=1)
-  29:34 -> 29:35 (count=1)
   30:9 -> 30:17 (count=1)
   30:20 -> 30:25 (count=1)
   30:29 -> 30:34 (count=0)
-  30:34 -> 30:35 (count=1)
   33:9 -> 34:16 (count=1)
   35:5 -> 38:6 (count=0)
   38:6 -> 38:7 (count=1)
@@ -70,9 +56,7 @@ Combined regions:
   56:16 -> 58:6 (count=1)
   58:12 -> 60:6 (count=0)
   61:1 -> 61:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
-Segment at 9:42 (count = 0), Skipped
-Segment at 10:8 (count = 1), RegionEntry
+Segment at 3:1 (count = 1), RegionEntry
 Segment at 10:15 (count = 0), Skipped
 Segment at 10:16 (count = 1), RegionEntry
 Segment at 14:6 (count = 0), RegionEntry
@@ -82,29 +66,25 @@ Segment at 16:17 (count = 0), Skipped
 Segment at 18:13 (count = 1), RegionEntry
 Segment at 18:18 (count = 0), Skipped
 Segment at 20:13 (count = 0), RegionEntry
-Segment at 20:18 (count = 1), RegionEntry
-Segment at 20:19 (count = 0), Skipped
+Segment at 20:18 (count = 0), Skipped
 Segment at 23:9 (count = 1), RegionEntry
 Segment at 23:17 (count = 0), Skipped
 Segment at 25:13 (count = 1), RegionEntry
 Segment at 25:18 (count = 0), Skipped
 Segment at 27:13 (count = 1), RegionEntry
-Segment at 27:18 (count = 1), RegionEntry
-Segment at 27:19 (count = 0), Skipped
+Segment at 27:18 (count = 0), Skipped
 Segment at 29:9 (count = 1), RegionEntry
 Segment at 29:17 (count = 0), Skipped
 Segment at 29:20 (count = 1), RegionEntry
 Segment at 29:25 (count = 0), Skipped
 Segment at 29:29 (count = 1), RegionEntry
-Segment at 29:34 (count = 1), RegionEntry
-Segment at 29:35 (count = 0), Skipped
+Segment at 29:34 (count = 0), Skipped
 Segment at 30:9 (count = 1), RegionEntry
 Segment at 30:17 (count = 0), Skipped
 Segment at 30:20 (count = 1), RegionEntry
 Segment at 30:25 (count = 0), Skipped
 Segment at 30:29 (count = 0), RegionEntry
-Segment at 30:34 (count = 1), RegionEntry
-Segment at 30:35 (count = 0), Skipped
+Segment at 30:34 (count = 0), Skipped
 Segment at 33:9 (count = 1), RegionEntry
 Segment at 34:16 (count = 0), Skipped
 Segment at 35:5 (count = 0), RegionEntry
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.loop_break_value.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.loop_break_value.txt
index a6144b8072ace..17bd5c2ff3186 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.loop_break_value.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.loop_break_value.txt
@@ -1,6 +1,6 @@
-Counter in file 0 3:11 -> 13:2, #1
+Counter in file 0 3:1 -> 13:2, #1
 Emitting segments for file: ../coverage/loop_break_value.rs
 Combined regions:
-  3:11 -> 13:2 (count=1)
-Segment at 3:11 (count = 1), RegionEntry
+  3:1 -> 13:2 (count=1)
+Segment at 3:1 (count = 1), RegionEntry
 Segment at 13:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.loops_branches.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.loops_branches.txt
index d8af6998964cf..d1da50b1529e4 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.loops_branches.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.loops_branches.txt
@@ -1,24 +1,22 @@
-Counter in file 0 10:12 -> 10:16, #1
+Counter in file 0 9:5 -> 10:16, #1
 Counter in file 0 11:16 -> 11:21, #2
 Counter in file 0 14:14 -> 14:15, (#2 - #5)
-Counter in file 0 15:13 -> 15:31, (0 + (#2 - #5))
+Counter in file 0 15:13 -> 15:31, ((0 - #6) + (#2 - #5))
 Counter in file 0 15:31 -> 15:32, #4
-Counter in file 0 17:10 -> 17:11, #3
 Counter in file 0 18:9 -> 18:15, (#3 + 0)
 Counter in file 0 19:5 -> 19:6, (#4 + (#3 + 0))
-Counter in file 0 22:11 -> 25:2, #1
+Counter in file 0 22:1 -> 25:2, #1
 Emitting segments for file: ../coverage/loops_branches.rs
 Combined regions:
-  10:12 -> 10:16 (count=1)
+  9:5 -> 10:16 (count=1)
   11:16 -> 11:21 (count=1)
   14:14 -> 14:15 (count=1)
   15:13 -> 15:31 (count=1)
   15:31 -> 15:32 (count=0)
-  17:10 -> 17:11 (count=1)
   18:9 -> 18:15 (count=1)
   19:5 -> 19:6 (count=1)
-  22:11 -> 25:2 (count=1)
-Segment at 10:12 (count = 1), RegionEntry
+  22:1 -> 25:2 (count=1)
+Segment at 9:5 (count = 1), RegionEntry
 Segment at 10:16 (count = 0), Skipped
 Segment at 11:16 (count = 1), RegionEntry
 Segment at 11:21 (count = 0), Skipped
@@ -27,11 +25,9 @@ Segment at 14:15 (count = 0), Skipped
 Segment at 15:13 (count = 1), RegionEntry
 Segment at 15:31 (count = 0), RegionEntry
 Segment at 15:32 (count = 0), Skipped
-Segment at 17:10 (count = 1), RegionEntry
-Segment at 17:11 (count = 0), Skipped
 Segment at 18:9 (count = 1), RegionEntry
 Segment at 18:15 (count = 0), Skipped
 Segment at 19:5 (count = 1), RegionEntry
 Segment at 19:6 (count = 0), Skipped
-Segment at 22:11 (count = 1), RegionEntry
+Segment at 22:1 (count = 1), RegionEntry
 Segment at 25:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.nested_loops.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.nested_loops.txt
index f8e504c56c48e..f30dd9e37164e 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.nested_loops.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.nested_loops.txt
@@ -1,40 +1,34 @@
-Counter in file 0 2:9 -> 3:27, #1
+Counter in file 0 1:1 -> 3:27, #1
 Counter in file 0 5:19 -> 5:32, (#1 + (#2 + #3))
 Counter in file 0 6:13 -> 7:24, ((#1 + (#2 + #3)) - #4)
 Counter in file 0 8:13 -> 8:14, ((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3)
 Counter in file 0 8:18 -> 8:23, (((#1 + (#2 + #3)) - #4) + (#6 + #7))
 Counter in file 0 9:16 -> 9:22, (((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) + 0)
 Counter in file 0 10:17 -> 10:22, #2
-Counter in file 0 12:13 -> 13:19, (((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) - #2)
-Counter in file 0 14:16 -> 14:22, ((((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) - #2) + 0)
+Counter in file 0 11:14 -> 14:22, (((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) - #2)
 Counter in file 0 15:17 -> 16:27, ((((((#1 + (#2 + #3)) - #4) + (#6 + #7)) - #3) - #2) - #7)
 Counter in file 0 17:21 -> 17:33, #5
-Counter in file 0 18:24 -> 21:14, #6
+Counter in file 0 18:24 -> 20:18, #6
 Counter in file 0 21:14 -> 21:15, #7
-Counter in file 0 22:10 -> 22:11, (#6 + #7)
 Counter in file 0 23:9 -> 23:23, (#2 + #3)
-Counter in file 0 24:6 -> 24:7, #4
 Counter in file 0 25:1 -> 25:2, (#5 + #4)
 Emitting segments for file: ../coverage/nested_loops.rs
 Combined regions:
-  2:9 -> 3:27 (count=1)
+  1:1 -> 3:27 (count=1)
   5:19 -> 5:32 (count=1)
   6:13 -> 7:24 (count=1)
   8:13 -> 8:14 (count=3)
   8:18 -> 8:23 (count=3)
   9:16 -> 9:22 (count=3)
   10:17 -> 10:22 (count=0)
-  12:13 -> 13:19 (count=3)
-  14:16 -> 14:22 (count=3)
+  11:14 -> 14:22 (count=3)
   15:17 -> 16:27 (count=1)
   17:21 -> 17:33 (count=1)
-  18:24 -> 21:14 (count=0)
+  18:24 -> 20:18 (count=0)
   21:14 -> 21:15 (count=2)
-  22:10 -> 22:11 (count=2)
   23:9 -> 23:23 (count=0)
-  24:6 -> 24:7 (count=0)
   25:1 -> 25:2 (count=1)
-Segment at 2:9 (count = 1), RegionEntry
+Segment at 1:1 (count = 1), RegionEntry
 Segment at 3:27 (count = 0), Skipped
 Segment at 5:19 (count = 1), RegionEntry
 Segment at 5:32 (count = 0), Skipped
@@ -48,22 +42,17 @@ Segment at 9:16 (count = 3), RegionEntry
 Segment at 9:22 (count = 0), Skipped
 Segment at 10:17 (count = 0), RegionEntry
 Segment at 10:22 (count = 0), Skipped
-Segment at 12:13 (count = 3), RegionEntry
-Segment at 13:19 (count = 0), Skipped
-Segment at 14:16 (count = 3), RegionEntry
+Segment at 11:14 (count = 3), RegionEntry
 Segment at 14:22 (count = 0), Skipped
 Segment at 15:17 (count = 1), RegionEntry
 Segment at 16:27 (count = 0), Skipped
 Segment at 17:21 (count = 1), RegionEntry
 Segment at 17:33 (count = 0), Skipped
 Segment at 18:24 (count = 0), RegionEntry
+Segment at 20:18 (count = 0), Skipped
 Segment at 21:14 (count = 2), RegionEntry
 Segment at 21:15 (count = 0), Skipped
-Segment at 22:10 (count = 2), RegionEntry
-Segment at 22:11 (count = 0), Skipped
 Segment at 23:9 (count = 0), RegionEntry
 Segment at 23:23 (count = 0), Skipped
-Segment at 24:6 (count = 0), RegionEntry
-Segment at 24:7 (count = 0), Skipped
 Segment at 25:1 (count = 1), RegionEntry
 Segment at 25:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.overflow.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.overflow.txt
index 8696e102b568e..fbc3adbfb6d70 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.overflow.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.overflow.txt
@@ -1,40 +1,39 @@
-Counter in file 0 16:9 -> 16:27, #1
+Counter in file 0 15:1 -> 16:27, #1
 Counter in file 0 17:11 -> 17:24, (#1 + (#2 + (#3 + #4)))
 Counter in file 0 18:12 -> 18:26, ((#1 + (#2 + (#3 + #4))) - #5)
 Counter in file 0 18:27 -> 21:10, #2
 Counter in file 0 21:19 -> 21:32, (((#1 + (#2 + (#3 + #4))) - #5) - #2)
 Counter in file 0 21:33 -> 24:10, #3
 Counter in file 0 24:10 -> 24:11, #4
-Counter in file 0 24:10 -> 24:11, (#3 + #4)
 Counter in file 0 25:9 -> 25:23, (#2 + (#3 + #4))
 Counter in file 0 27:5 -> 28:2, #5
-Counter in file 0 5:8 -> 5:18, #1
+Counter in file 0 4:1 -> 5:18, #1
 Counter in file 0 5:19 -> 7:6, #2
 Counter in file 0 7:6 -> 7:7, (#1 - #2)
 Counter in file 0 8:9 -> 13:2, (#2 + (#1 - #2))
 Emitting segments for file: ../coverage/overflow.rs
 Combined regions:
-  5:8 -> 5:18 (count=4)
+  4:1 -> 5:18 (count=4)
   5:19 -> 7:6 (count=1)
   7:6 -> 7:7 (count=3)
   8:9 -> 13:2 (count=4)
-  16:9 -> 16:27 (count=1)
+  15:1 -> 16:27 (count=1)
   17:11 -> 17:24 (count=10)
   18:12 -> 18:26 (count=10)
   18:27 -> 21:10 (count=0)
   21:19 -> 21:32 (count=10)
   21:33 -> 24:10 (count=3)
-  24:10 -> 24:11 (count=15)
+  24:10 -> 24:11 (count=6)
   25:9 -> 25:23 (count=9)
   27:5 -> 28:2 (count=0)
-Segment at 5:8 (count = 4), RegionEntry
+Segment at 4:1 (count = 4), RegionEntry
 Segment at 5:18 (count = 0), Skipped
 Segment at 5:19 (count = 1), RegionEntry
 Segment at 7:6 (count = 3), RegionEntry
 Segment at 7:7 (count = 0), Skipped
 Segment at 8:9 (count = 4), RegionEntry
 Segment at 13:2 (count = 0), Skipped
-Segment at 16:9 (count = 1), RegionEntry
+Segment at 15:1 (count = 1), RegionEntry
 Segment at 16:27 (count = 0), Skipped
 Segment at 17:11 (count = 10), RegionEntry
 Segment at 17:24 (count = 0), Skipped
@@ -45,7 +44,7 @@ Segment at 21:10 (count = 0), Skipped
 Segment at 21:19 (count = 10), RegionEntry
 Segment at 21:32 (count = 0), Skipped
 Segment at 21:33 (count = 3), RegionEntry
-Segment at 24:10 (count = 15), RegionEntry
+Segment at 24:10 (count = 6), RegionEntry
 Segment at 24:11 (count = 0), Skipped
 Segment at 25:9 (count = 9), RegionEntry
 Segment at 25:23 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.panic_unwind.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.panic_unwind.txt
index 9602ff1a985aa..ad87f03026d38 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.panic_unwind.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.panic_unwind.txt
@@ -1,37 +1,40 @@
-Counter in file 0 14:9 -> 14:27, #1
+Counter in file 0 13:1 -> 14:27, #1
 Counter in file 0 15:11 -> 15:24, (#1 + (#2 + (#3 + #4)))
 Counter in file 0 16:12 -> 16:26, ((#1 + (#2 + (#3 + #4))) - #5)
 Counter in file 0 16:27 -> 18:10, #2
 Counter in file 0 18:19 -> 18:32, (((#1 + (#2 + (#3 + #4))) - #5) - #2)
 Counter in file 0 18:33 -> 20:10, #3
 Counter in file 0 20:10 -> 20:11, #4
-Counter in file 0 20:10 -> 20:11, (#3 + #4)
 Counter in file 0 21:9 -> 21:23, (#2 + (#3 + #4))
 Counter in file 0 23:5 -> 24:2, #5
-Counter in file 0 5:8 -> 5:20, #1
+Counter in file 0 4:1 -> 4:36, #1
+Counter in file 0 5:8 -> 5:20, (#1 + 0)
 Counter in file 0 6:9 -> 7:26, #2
 Counter in file 0 8:12 -> 11:2, (#1 - #2)
 Emitting segments for file: ../coverage/panic_unwind.rs
 Combined regions:
+  4:1 -> 4:36 (count=4)
   5:8 -> 5:20 (count=4)
   6:9 -> 7:26 (count=1)
   8:12 -> 11:2 (count=3)
-  14:9 -> 14:27 (count=1)
+  13:1 -> 14:27 (count=1)
   15:11 -> 15:24 (count=10)
   16:12 -> 16:26 (count=10)
   16:27 -> 18:10 (count=0)
   18:19 -> 18:32 (count=10)
   18:33 -> 20:10 (count=3)
-  20:10 -> 20:11 (count=15)
+  20:10 -> 20:11 (count=6)
   21:9 -> 21:23 (count=9)
   23:5 -> 24:2 (count=0)
+Segment at 4:1 (count = 4), RegionEntry
+Segment at 4:36 (count = 0), Skipped
 Segment at 5:8 (count = 4), RegionEntry
 Segment at 5:20 (count = 0), Skipped
 Segment at 6:9 (count = 1), RegionEntry
 Segment at 7:26 (count = 0), Skipped
 Segment at 8:12 (count = 3), RegionEntry
 Segment at 11:2 (count = 0), Skipped
-Segment at 14:9 (count = 1), RegionEntry
+Segment at 13:1 (count = 1), RegionEntry
 Segment at 14:27 (count = 0), Skipped
 Segment at 15:11 (count = 10), RegionEntry
 Segment at 15:24 (count = 0), Skipped
@@ -42,7 +45,7 @@ Segment at 18:10 (count = 0), Skipped
 Segment at 18:19 (count = 10), RegionEntry
 Segment at 18:32 (count = 0), Skipped
 Segment at 18:33 (count = 3), RegionEntry
-Segment at 20:10 (count = 15), RegionEntry
+Segment at 20:10 (count = 6), RegionEntry
 Segment at 20:11 (count = 0), Skipped
 Segment at 21:9 (count = 9), RegionEntry
 Segment at 21:23 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.partial_eq.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.partial_eq.txt
index cdef821c0aef2..fa5c12bb6f8e0 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.partial_eq.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.partial_eq.txt
@@ -1,27 +1,66 @@
+Counter in file 0 4:10 -> 4:15, 0
+Counter in file 0 4:24 -> 4:25, 0
+Counter in file 0 4:24 -> 4:25, 0
+Counter in file 0 4:32 -> 4:33, 0
+Counter in file 0 4:32 -> 4:33, 0
+Counter in file 0 4:35 -> 4:36, 0
+Counter in file 0 4:39 -> 4:40, 0
+Counter in file 0 4:39 -> 4:40, 0
+Counter in file 0 4:39 -> 4:40, 0
+Counter in file 0 4:39 -> 4:40, 0
+Counter in file 0 4:48 -> 4:49, 0
+Counter in file 0 4:51 -> 4:52, 0
+Counter in file 0 4:53 -> 4:54, 0
 Counter in file 0 7:5 -> 7:6, #1
-Counter in file 0 21:11 -> 26:2, #1
+Counter in file 0 7:5 -> 7:6, 0
+Counter in file 0 7:5 -> 7:6, 0
+Counter in file 0 7:5 -> 7:6, 0
+Counter in file 0 8:5 -> 8:17, 0
+Counter in file 0 8:5 -> 8:17, 0
+Counter in file 0 8:5 -> 8:17, 0
+Counter in file 0 21:1 -> 26:2, #1
 Counter in file 0 4:17 -> 4:22, #1
-Counter in file 0 13:9 -> 18:6, #1
+Counter in file 0 12:5 -> 18:6, #1
 Counter in file 0 4:39 -> 4:40, #1
-Counter in file 0 4:48 -> 4:49, (#1 + 0)
 Counter in file 0 8:5 -> 8:17, #1
 Emitting segments for file: ../coverage/partial_eq.rs
 Combined regions:
+  4:10 -> 4:15 (count=0)
   4:17 -> 4:22 (count=2)
+  4:24 -> 4:25 (count=0)
+  4:32 -> 4:33 (count=0)
+  4:35 -> 4:36 (count=0)
   4:39 -> 4:40 (count=1)
-  4:48 -> 4:49 (count=1)
+  4:48 -> 4:49 (count=0)
+  4:51 -> 4:52 (count=0)
+  4:53 -> 4:54 (count=0)
   7:5 -> 7:6 (count=1)
-  13:9 -> 18:6 (count=2)
-  21:11 -> 26:2 (count=1)
+  8:5 -> 8:17 (count=0)
+  12:5 -> 18:6 (count=2)
+  21:1 -> 26:2 (count=1)
+Segment at 4:10 (count = 0), RegionEntry
+Segment at 4:15 (count = 0), Skipped
 Segment at 4:17 (count = 2), RegionEntry
 Segment at 4:22 (count = 0), Skipped
+Segment at 4:24 (count = 0), RegionEntry
+Segment at 4:25 (count = 0), Skipped
+Segment at 4:32 (count = 0), RegionEntry
+Segment at 4:33 (count = 0), Skipped
+Segment at 4:35 (count = 0), RegionEntry
+Segment at 4:36 (count = 0), Skipped
 Segment at 4:39 (count = 1), RegionEntry
 Segment at 4:40 (count = 0), Skipped
-Segment at 4:48 (count = 1), RegionEntry
+Segment at 4:48 (count = 0), RegionEntry
 Segment at 4:49 (count = 0), Skipped
+Segment at 4:51 (count = 0), RegionEntry
+Segment at 4:52 (count = 0), Skipped
+Segment at 4:53 (count = 0), RegionEntry
+Segment at 4:54 (count = 0), Skipped
 Segment at 7:5 (count = 1), RegionEntry
 Segment at 7:6 (count = 0), Skipped
-Segment at 13:9 (count = 2), RegionEntry
+Segment at 8:5 (count = 0), RegionEntry
+Segment at 8:17 (count = 0), Skipped
+Segment at 12:5 (count = 2), RegionEntry
 Segment at 18:6 (count = 0), Skipped
-Segment at 21:11 (count = 1), RegionEntry
+Segment at 21:1 (count = 1), RegionEntry
 Segment at 26:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.simple_loop.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.simple_loop.txt
index 6ea09248d65ca..c0b09486dfba4 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.simple_loop.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.simple_loop.txt
@@ -1,26 +1,20 @@
-Counter in file 0 7:9 -> 9:26, #1
-Counter in file 0 12:9 -> 12:16, (#1 + 0)
+Counter in file 0 3:1 -> 12:16, #1
 Counter in file 0 13:5 -> 18:6, #2
 Counter in file 0 18:6 -> 18:7, (#1 - #2)
 Counter in file 0 23:13 -> 25:14, ((#2 + (#1 - #2)) + #3)
 Counter in file 0 27:13 -> 27:18, (((#2 + (#1 - #2)) + #3) - #3)
-Counter in file 0 30:9 -> 32:10, #3
-Counter in file 0 34:6 -> 34:7, (#2 + (#1 - #2))
+Counter in file 0 29:10 -> 32:10, #3
 Counter in file 0 35:1 -> 35:2, ((((#2 + (#1 - #2)) + #3) - #3) + 0)
 Emitting segments for file: ../coverage/simple_loop.rs
 Combined regions:
-  7:9 -> 9:26 (count=1)
-  12:9 -> 12:16 (count=1)
+  3:1 -> 12:16 (count=1)
   13:5 -> 18:6 (count=1)
   18:6 -> 18:7 (count=0)
   23:13 -> 25:14 (count=11)
   27:13 -> 27:18 (count=1)
-  30:9 -> 32:10 (count=10)
-  34:6 -> 34:7 (count=1)
+  29:10 -> 32:10 (count=10)
   35:1 -> 35:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
-Segment at 9:26 (count = 0), Skipped
-Segment at 12:9 (count = 1), RegionEntry
+Segment at 3:1 (count = 1), RegionEntry
 Segment at 12:16 (count = 0), Skipped
 Segment at 13:5 (count = 1), RegionEntry
 Segment at 18:6 (count = 0), RegionEntry
@@ -29,9 +23,7 @@ Segment at 23:13 (count = 11), RegionEntry
 Segment at 25:14 (count = 0), Skipped
 Segment at 27:13 (count = 1), RegionEntry
 Segment at 27:18 (count = 0), Skipped
-Segment at 30:9 (count = 10), RegionEntry
+Segment at 29:10 (count = 10), RegionEntry
 Segment at 32:10 (count = 0), Skipped
-Segment at 34:6 (count = 1), RegionEntry
-Segment at 34:7 (count = 0), Skipped
 Segment at 35:1 (count = 1), RegionEntry
 Segment at 35:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.simple_match.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.simple_match.txt
index 1682a379bc0ff..c01630bd87bc9 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.simple_match.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.simple_match.txt
@@ -1,5 +1,4 @@
-Counter in file 0 7:9 -> 9:26, #1
-Counter in file 0 10:8 -> 10:15, (#1 + 0)
+Counter in file 0 3:1 -> 10:15, #1
 Counter in file 0 10:16 -> 12:6, #2
 Counter in file 0 12:6 -> 12:7, (#1 - #2)
 Counter in file 0 15:9 -> 15:10, (((#2 + (#1 - #2)) + (#3 + #4)) - #5)
@@ -7,16 +6,12 @@ Counter in file 0 17:9 -> 17:13, ((#2 + (#1 - #2)) + (#3 + #4))
 Counter in file 0 22:13 -> 22:22, ((((#2 + (#1 - #2)) + (#3 + #4)) - #5) + 0)
 Counter in file 0 24:13 -> 24:14, #3
 Counter in file 0 26:17 -> 28:18, ((((#2 + (#1 - #2)) + (#3 + #4)) - #5) + 0)
-Counter in file 0 28:18 -> 28:19, ((((#2 + (#1 - #2)) + (#3 + #4)) - #5) - #3)
 Counter in file 0 30:13 -> 37:14, (#3 + 0)
 Counter in file 0 40:13 -> 40:15, #4
-Counter in file 0 42:6 -> 42:7, (#2 + (#1 - #2))
-Counter in file 0 42:6 -> 42:7, (#3 + #4)
 Counter in file 0 43:1 -> 43:2, #5
 Emitting segments for file: ../coverage/simple_match.rs
 Combined regions:
-  7:9 -> 9:26 (count=1)
-  10:8 -> 10:15 (count=1)
+  3:1 -> 10:15 (count=1)
   10:16 -> 12:6 (count=1)
   12:6 -> 12:7 (count=0)
   15:9 -> 15:10 (count=2)
@@ -24,14 +19,10 @@ Combined regions:
   22:13 -> 22:22 (count=2)
   24:13 -> 24:14 (count=1)
   26:17 -> 28:18 (count=2)
-  28:18 -> 28:19 (count=1)
   30:13 -> 37:14 (count=1)
   40:13 -> 40:15 (count=1)
-  42:6 -> 42:7 (count=3)
   43:1 -> 43:2 (count=1)
-Segment at 7:9 (count = 1), RegionEntry
-Segment at 9:26 (count = 0), Skipped
-Segment at 10:8 (count = 1), RegionEntry
+Segment at 3:1 (count = 1), RegionEntry
 Segment at 10:15 (count = 0), Skipped
 Segment at 10:16 (count = 1), RegionEntry
 Segment at 12:6 (count = 0), RegionEntry
@@ -45,13 +36,10 @@ Segment at 22:22 (count = 0), Skipped
 Segment at 24:13 (count = 1), RegionEntry
 Segment at 24:14 (count = 0), Skipped
 Segment at 26:17 (count = 2), RegionEntry
-Segment at 28:18 (count = 1), RegionEntry
-Segment at 28:19 (count = 0), Skipped
+Segment at 28:18 (count = 0), Skipped
 Segment at 30:13 (count = 1), RegionEntry
 Segment at 37:14 (count = 0), Skipped
 Segment at 40:13 (count = 1), RegionEntry
 Segment at 40:15 (count = 0), Skipped
-Segment at 42:6 (count = 3), RegionEntry
-Segment at 42:7 (count = 0), Skipped
 Segment at 43:1 (count = 1), RegionEntry
 Segment at 43:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.tight_inf_loop.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.tight_inf_loop.txt
index 5887658fe67a2..a6cd429880856 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.tight_inf_loop.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.tight_inf_loop.txt
@@ -1,10 +1,10 @@
-Counter in file 0 2:8 -> 2:13, #1
-Counter in file 0 5:1 -> 5:2, (#1 - #2)
+Counter in file 0 1:1 -> 2:13, #1
+Counter in file 0 4:6 -> 5:2, (#1 - #2)
 Emitting segments for file: ../coverage/tight_inf_loop.rs
 Combined regions:
-  2:8 -> 2:13 (count=1)
-  5:1 -> 5:2 (count=1)
-Segment at 2:8 (count = 1), RegionEntry
+  1:1 -> 2:13 (count=1)
+  4:6 -> 5:2 (count=1)
+Segment at 1:1 (count = 1), RegionEntry
 Segment at 2:13 (count = 0), Skipped
-Segment at 5:1 (count = 1), RegionEntry
+Segment at 4:6 (count = 1), RegionEntry
 Segment at 5:2 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.try_error_result.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.try_error_result.txt
index 5b7f5496af819..2b7962df2f9f9 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.try_error_result.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.try_error_result.txt
@@ -1,4 +1,4 @@
-Counter in file 0 13:9 -> 14:23, #1
+Counter in file 0 12:1 -> 14:23, #1
 Counter in file 0 17:9 -> 17:10, ((#1 + (#2 + #3)) - #4)
 Counter in file 0 19:9 -> 19:14, (#1 + (#2 + #3))
 Counter in file 0 21:9 -> 25:26, (((#1 + (#2 + #3)) - #4) + 0)
@@ -8,22 +8,19 @@ Counter in file 0 28:13 -> 28:42, (#8 - #5)
 Counter in file 0 28:42 -> 28:43, #6
 Counter in file 0 32:13 -> 32:42, (((#1 + (#2 + #3)) - #4) - #8)
 Counter in file 0 32:42 -> 32:43, #7
-Counter in file 0 33:10 -> 33:11, #2
-Counter in file 0 33:10 -> 33:11, #3
-Counter in file 0 34:6 -> 34:7, (#2 + #3)
 Counter in file 0 35:5 -> 35:11, #4
 Counter in file 0 36:1 -> 36:2, ((#5 + (#6 + #7)) + #4)
-Counter in file 0 5:8 -> 5:20, #1
+Counter in file 0 4:1 -> 5:20, #1
 Counter in file 0 6:9 -> 6:16, #2
 Counter in file 0 8:9 -> 8:15, (#1 - #2)
 Counter in file 0 10:1 -> 10:2, (#2 + (#1 - #2))
 Emitting segments for file: ../coverage/try_error_result.rs
 Combined regions:
-  5:8 -> 5:20 (count=6)
+  4:1 -> 5:20 (count=6)
   6:9 -> 6:16 (count=1)
   8:9 -> 8:15 (count=5)
   10:1 -> 10:2 (count=6)
-  13:9 -> 14:23 (count=1)
+  12:1 -> 14:23 (count=1)
   17:9 -> 17:10 (count=6)
   19:9 -> 19:14 (count=6)
   21:9 -> 25:26 (count=6)
@@ -33,11 +30,9 @@ Combined regions:
   28:42 -> 28:43 (count=0)
   32:13 -> 32:42 (count=5)
   32:42 -> 32:43 (count=0)
-  33:10 -> 33:11 (count=5)
-  34:6 -> 34:7 (count=5)
   35:5 -> 35:11 (count=0)
   36:1 -> 36:2 (count=1)
-Segment at 5:8 (count = 6), RegionEntry
+Segment at 4:1 (count = 6), RegionEntry
 Segment at 5:20 (count = 0), Skipped
 Segment at 6:9 (count = 1), RegionEntry
 Segment at 6:16 (count = 0), Skipped
@@ -45,7 +40,7 @@ Segment at 8:9 (count = 5), RegionEntry
 Segment at 8:15 (count = 0), Skipped
 Segment at 10:1 (count = 6), RegionEntry
 Segment at 10:2 (count = 0), Skipped
-Segment at 13:9 (count = 1), RegionEntry
+Segment at 12:1 (count = 1), RegionEntry
 Segment at 14:23 (count = 0), Skipped
 Segment at 17:9 (count = 6), RegionEntry
 Segment at 17:10 (count = 0), Skipped
@@ -62,10 +57,6 @@ Segment at 28:43 (count = 0), Skipped
 Segment at 32:13 (count = 5), RegionEntry
 Segment at 32:42 (count = 0), RegionEntry
 Segment at 32:43 (count = 0), Skipped
-Segment at 33:10 (count = 5), RegionEntry
-Segment at 33:11 (count = 0), Skipped
-Segment at 34:6 (count = 5), RegionEntry
-Segment at 34:7 (count = 0), Skipped
 Segment at 35:5 (count = 0), RegionEntry
 Segment at 35:11 (count = 0), Skipped
 Segment at 36:1 (count = 1), RegionEntry
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.while.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.while.txt
index b0e881da7c8cb..90629ac84cdf6 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.while.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.while.txt
@@ -1,14 +1,14 @@
-Counter in file 0 2:9 -> 2:16, #1
+Counter in file 0 1:1 -> 2:16, #1
 Counter in file 0 3:11 -> 3:20, (#1 + #2)
 Counter in file 0 3:21 -> 4:6, #2
 Counter in file 0 5:1 -> 5:2, ((#1 + #2) - #2)
 Emitting segments for file: ../coverage/while.rs
 Combined regions:
-  2:9 -> 2:16 (count=1)
+  1:1 -> 2:16 (count=1)
   3:11 -> 3:20 (count=1)
   3:21 -> 4:6 (count=0)
   5:1 -> 5:2 (count=1)
-Segment at 2:9 (count = 1), RegionEntry
+Segment at 1:1 (count = 1), RegionEntry
 Segment at 2:16 (count = 0), Skipped
 Segment at 3:11 (count = 1), RegionEntry
 Segment at 3:20 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.while_early_ret.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.while_early_ret.txt
index 7e79a8f00e1a6..12f444945a18a 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.while_early_ret.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.while_early_ret.txt
@@ -1,24 +1,24 @@
-Counter in file 0 5:9 -> 5:27, #1
+Counter in file 0 4:1 -> 5:27, #1
 Counter in file 0 7:9 -> 9:10, (#1 + #2)
 Counter in file 0 12:13 -> 14:14, ((#1 + #2) - #3)
 Counter in file 0 18:21 -> 20:22, (((#1 + #2) - #3) - #2)
 Counter in file 0 22:21 -> 22:27, #4
 Counter in file 0 26:21 -> 26:27, #5
-Counter in file 0 30:9 -> 32:10, #2
+Counter in file 0 29:10 -> 32:10, #2
 Counter in file 0 35:5 -> 35:11, #3
 Counter in file 0 36:1 -> 36:2, ((#4 + #5) + #3)
 Emitting segments for file: ../coverage/while_early_ret.rs
 Combined regions:
-  5:9 -> 5:27 (count=1)
+  4:1 -> 5:27 (count=1)
   7:9 -> 9:10 (count=7)
   12:13 -> 14:14 (count=7)
   18:21 -> 20:22 (count=1)
   22:21 -> 22:27 (count=0)
   26:21 -> 26:27 (count=1)
-  30:9 -> 32:10 (count=6)
+  29:10 -> 32:10 (count=6)
   35:5 -> 35:11 (count=0)
   36:1 -> 36:2 (count=1)
-Segment at 5:9 (count = 1), RegionEntry
+Segment at 4:1 (count = 1), RegionEntry
 Segment at 5:27 (count = 0), Skipped
 Segment at 7:9 (count = 7), RegionEntry
 Segment at 9:10 (count = 0), Skipped
@@ -30,7 +30,7 @@ Segment at 22:21 (count = 0), RegionEntry
 Segment at 22:27 (count = 0), Skipped
 Segment at 26:21 (count = 1), RegionEntry
 Segment at 26:27 (count = 0), Skipped
-Segment at 30:9 (count = 6), RegionEntry
+Segment at 29:10 (count = 6), RegionEntry
 Segment at 32:10 (count = 0), Skipped
 Segment at 35:5 (count = 0), RegionEntry
 Segment at 35:11 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.yield.txt b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.yield.txt
index a107535821164..6ed3e465611e9 100644
--- a/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.yield.txt
+++ b/src/test/run-make-fulldeps/coverage-reports/expected_show_coverage_counters.yield.txt
@@ -1,4 +1,5 @@
-Counter in file 0 8:9 -> 8:22, #1
+Counter in file 0 7:1 -> 7:11, #1
+Counter in file 0 8:9 -> 8:22, (#1 + 0)
 Counter in file 0 13:11 -> 14:35, (#1 + 0)
 Counter in file 0 14:39 -> 14:41, #4
 Counter in file 0 15:14 -> 15:52, (#2 + #3)
@@ -14,16 +15,17 @@ Counter in file 0 33:11 -> 34:35, (#9 + 0)
 Counter in file 0 34:39 -> 34:41, #12
 Counter in file 0 35:14 -> 35:52, (#10 + #11)
 Counter in file 0 37:1 -> 37:2, (#12 + 0)
-Counter in file 0 9:9 -> 9:16, #1
+Counter in file 0 8:28 -> 9:16, #1
 Counter in file 0 10:16 -> 11:6, #2
-Counter in file 0 23:9 -> 23:16, #1
+Counter in file 0 22:28 -> 23:16, #1
 Counter in file 0 24:9 -> 24:16, #2
 Counter in file 0 25:9 -> 25:16, #3
 Counter in file 0 26:16 -> 27:6, #4
 Emitting segments for file: ../coverage/yield.rs
 Combined regions:
+  7:1 -> 7:11 (count=1)
   8:9 -> 8:22 (count=1)
-  9:9 -> 9:16 (count=1)
+  8:28 -> 9:16 (count=1)
   10:16 -> 11:6 (count=1)
   13:11 -> 14:35 (count=1)
   14:39 -> 14:41 (count=1)
@@ -33,7 +35,7 @@ Combined regions:
   18:44 -> 18:46 (count=1)
   19:14 -> 19:52 (count=0)
   22:9 -> 22:22 (count=1)
-  23:9 -> 23:16 (count=1)
+  22:28 -> 23:16 (count=1)
   24:9 -> 24:16 (count=1)
   25:9 -> 25:16 (count=0)
   26:16 -> 27:6 (count=0)
@@ -44,9 +46,11 @@ Combined regions:
   34:39 -> 34:41 (count=1)
   35:14 -> 35:52 (count=0)
   37:1 -> 37:2 (count=1)
+Segment at 7:1 (count = 1), RegionEntry
+Segment at 7:11 (count = 0), Skipped
 Segment at 8:9 (count = 1), RegionEntry
 Segment at 8:22 (count = 0), Skipped
-Segment at 9:9 (count = 1), RegionEntry
+Segment at 8:28 (count = 1), RegionEntry
 Segment at 9:16 (count = 0), Skipped
 Segment at 10:16 (count = 1), RegionEntry
 Segment at 11:6 (count = 0), Skipped
@@ -66,7 +70,7 @@ Segment at 19:14 (count = 0), RegionEntry
 Segment at 19:52 (count = 0), Skipped
 Segment at 22:9 (count = 1), RegionEntry
 Segment at 22:22 (count = 0), Skipped
-Segment at 23:9 (count = 1), RegionEntry
+Segment at 22:28 (count = 1), RegionEntry
 Segment at 23:16 (count = 0), Skipped
 Segment at 24:9 (count = 1), RegionEntry
 Segment at 24:16 (count = 0), Skipped
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/Makefile b/src/test/run-make-fulldeps/coverage-spanview-deadcode/Makefile
deleted file mode 100644
index 2bc61fccde46e..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-# needs-profiler-support
-# ignore-msvc
-
-# LINK_DEAD_CODE requires ignore-msvc due to Issue #76038
-LINK_DEAD_CODE=yes
-
--include ../coverage-spanview/Makefile
-
-# ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and
-# `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`.
-# See ../coverage/coverage_tools.mk for more information.
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.abort/abort.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.abort/abort.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 63f7d2dd2d9ff..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.abort/abort.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,99 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>abort.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 13"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="15:25-15:27: @0[1]: _1 = const 10_i32
-15:9-15:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="16:11-16:20: @2[2]: _5 = _1
-16:11-16:24: @2[3]: _4 = Gt(move _5, const 0_i32)
-16:11-16:24: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown &gt; 0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="17:12-17:21: @5[3]: _8 = _1
-17:12-17:25: @5[4]: _7 = Lt(move _8, const 5_i32)
-17:12-17:25: @5[6]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@3,5⦊</span>countdown &lt; 5<span class="annotation">⦉@3,5</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb12]
-17:26-19:10: @9[1]: _6 = const ()
-19:10-19:10: @9.Goto: goto -&gt; bb10"><span class="annotation">@6,8,9⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb12]
-17:26-19:10: @9[1]: _6 = const ()
-19:10-19:10: @9.Goto: goto -&gt; bb10">            might_abort(false);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb12]
-17:26-19:10: @9[1]: _6 = const ()
-19:10-19:10: @9.Goto: goto -&gt; bb10">        }<span class="annotation">⦉@6,8,9</span></span></span><span><span class="code even" style="--layer: 1" title="19:10-19:10: @7.Goto: goto -&gt; bb10"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="20:9-20:23: @10[2]: _10 = CheckedSub(_1, const 1_i32)
-20:9-20:23: @11[0]: _1 = move (_10.0: i32)"><span class="annotation">@10,11⦊</span>countdown -= 1<span class="annotation">⦉@10,11</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="22:8-22:10: @4[4]: _12 = ()
-22:5-22:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _12)
-23:2-23:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="22:8-22:10: @4[4]: _12 = ()
-22:5-22:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _12)
-23:2-23:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.abort/abort.might_abort.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.abort/abort.might_abort.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 444ca72ce4c10..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.abort/abort.might_abort.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,164 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.might_abort.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>abort.might_abort - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">fn might_abort(should_abort: bool) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="6:8-6:20: @0[1]: _2 = _1
-6:8-6:20: @0[2]: FakeRead(ForMatchedPlace, _2)"><span class="annotation">@0⦊</span>should_abort<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="7:18-7:31: @3[6]: _33 = const might_abort::promoted[3]
-7:18-7:31: @3[7]: _9 = &amp;(*_33)
-7:18-7:31: @3[8]: _8 = &amp;(*_9)
-7:18-7:31: @3[9]: _7 = move _8 as &amp;[&amp;str] (Pointer(Unsize))
-7:9-7:33: @3[15]: _15 = ()
-7:9-7:33: @3[16]: FakeRead(ForMatchedPlace, _15)
-7:9-7:33: @3[17]: _32 = const might_abort::promoted[2]
-7:9-7:33: @3[18]: _13 = &amp;(*_32)
-7:9-7:33: @3[19]: _12 = &amp;(*_13)
-7:9-7:33: @3[20]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-7:9-7:33: @3.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb4, unwind: bb8]
-7:9-7:33: @4.Call: _5 = _print(move _6) -&gt; [return: bb5, unwind: bb8]
-7:9-7:33: @5[5]: _4 = const ()
-8:9-8:37: @5.Call: begin_panic::&lt;&amp;str&gt;(const &quot;panics and aborts&quot;) -&gt; bb8"><span class="annotation">@1,3,4,5⦊</span>println!("aborting...");</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="7:18-7:31: @3[6]: _33 = const might_abort::promoted[3]
-7:18-7:31: @3[7]: _9 = &amp;(*_33)
-7:18-7:31: @3[8]: _8 = &amp;(*_9)
-7:18-7:31: @3[9]: _7 = move _8 as &amp;[&amp;str] (Pointer(Unsize))
-7:9-7:33: @3[15]: _15 = ()
-7:9-7:33: @3[16]: FakeRead(ForMatchedPlace, _15)
-7:9-7:33: @3[17]: _32 = const might_abort::promoted[2]
-7:9-7:33: @3[18]: _13 = &amp;(*_32)
-7:9-7:33: @3[19]: _12 = &amp;(*_13)
-7:9-7:33: @3[20]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-7:9-7:33: @3.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb4, unwind: bb8]
-7:9-7:33: @4.Call: _5 = _print(move _6) -&gt; [return: bb5, unwind: bb8]
-7:9-7:33: @5[5]: _4 = const ()
-8:9-8:37: @5.Call: begin_panic::&lt;&amp;str&gt;(const &quot;panics and aborts&quot;) -&gt; bb8">        panic!("panics and aborts");<span class="annotation">⦉@1,3,4,5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    } else </span><span><span class="code even" style="--layer: 1" title="10:18-10:31: @2[6]: _31 = const might_abort::promoted[1]
-10:18-10:31: @2[7]: _23 = &amp;(*_31)
-10:18-10:31: @2[8]: _22 = &amp;(*_23)
-10:18-10:31: @2[9]: _21 = move _22 as &amp;[&amp;str] (Pointer(Unsize))
-10:9-10:33: @2[15]: _29 = ()
-10:9-10:33: @2[16]: FakeRead(ForMatchedPlace, _29)
-10:9-10:33: @2[17]: _30 = const might_abort::promoted[0]
-10:9-10:33: @2[18]: _27 = &amp;(*_30)
-10:9-10:33: @2[19]: _26 = &amp;(*_27)
-10:9-10:33: @2[20]: _25 = move _26 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-10:9-10:33: @2.Call: _20 = Arguments::new_v1(move _21, move _25) -&gt; [return: bb6, unwind: bb8]
-10:9-10:33: @6.Call: _19 = _print(move _20) -&gt; [return: bb7, unwind: bb8]
-10:9-10:33: @7[5]: _18 = const ()
-9:12-11:6: @7[7]: _0 = const ()
-12:2-12:2: @7.Return: return"><span class="annotation">@2,6,7⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:18-10:31: @2[6]: _31 = const might_abort::promoted[1]
-10:18-10:31: @2[7]: _23 = &amp;(*_31)
-10:18-10:31: @2[8]: _22 = &amp;(*_23)
-10:18-10:31: @2[9]: _21 = move _22 as &amp;[&amp;str] (Pointer(Unsize))
-10:9-10:33: @2[15]: _29 = ()
-10:9-10:33: @2[16]: FakeRead(ForMatchedPlace, _29)
-10:9-10:33: @2[17]: _30 = const might_abort::promoted[0]
-10:9-10:33: @2[18]: _27 = &amp;(*_30)
-10:9-10:33: @2[19]: _26 = &amp;(*_27)
-10:9-10:33: @2[20]: _25 = move _26 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-10:9-10:33: @2.Call: _20 = Arguments::new_v1(move _21, move _25) -&gt; [return: bb6, unwind: bb8]
-10:9-10:33: @6.Call: _19 = _print(move _20) -&gt; [return: bb7, unwind: bb8]
-10:9-10:33: @7[5]: _18 = const ()
-9:12-11:6: @7[7]: _0 = const ()
-12:2-12:2: @7.Return: return">        println!("Don't Panic");</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:18-10:31: @2[6]: _31 = const might_abort::promoted[1]
-10:18-10:31: @2[7]: _23 = &amp;(*_31)
-10:18-10:31: @2[8]: _22 = &amp;(*_23)
-10:18-10:31: @2[9]: _21 = move _22 as &amp;[&amp;str] (Pointer(Unsize))
-10:9-10:33: @2[15]: _29 = ()
-10:9-10:33: @2[16]: FakeRead(ForMatchedPlace, _29)
-10:9-10:33: @2[17]: _30 = const might_abort::promoted[0]
-10:9-10:33: @2[18]: _27 = &amp;(*_30)
-10:9-10:33: @2[19]: _26 = &amp;(*_27)
-10:9-10:33: @2[20]: _25 = move _26 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-10:9-10:33: @2.Call: _20 = Arguments::new_v1(move _21, move _25) -&gt; [return: bb6, unwind: bb8]
-10:9-10:33: @6.Call: _19 = _print(move _20) -&gt; [return: bb7, unwind: bb8]
-10:9-10:33: @7[5]: _18 = const ()
-9:12-11:6: @7[7]: _0 = const ()
-12:2-12:2: @7.Return: return">    }</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:18-10:31: @2[6]: _31 = const might_abort::promoted[1]
-10:18-10:31: @2[7]: _23 = &amp;(*_31)
-10:18-10:31: @2[8]: _22 = &amp;(*_23)
-10:18-10:31: @2[9]: _21 = move _22 as &amp;[&amp;str] (Pointer(Unsize))
-10:9-10:33: @2[15]: _29 = ()
-10:9-10:33: @2[16]: FakeRead(ForMatchedPlace, _29)
-10:9-10:33: @2[17]: _30 = const might_abort::promoted[0]
-10:9-10:33: @2[18]: _27 = &amp;(*_30)
-10:9-10:33: @2[19]: _26 = &amp;(*_27)
-10:9-10:33: @2[20]: _25 = move _26 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-10:9-10:33: @2.Call: _20 = Arguments::new_v1(move _21, move _25) -&gt; [return: bb6, unwind: bb8]
-10:9-10:33: @6.Call: _19 = _print(move _20) -&gt; [return: bb7, unwind: bb8]
-10:9-10:33: @7[5]: _18 = const ()
-9:12-11:6: @7[7]: _0 = const ()
-12:2-12:2: @7.Return: return">}<span class="annotation">⦉@2,6,7</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.assert/assert.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.assert/assert.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index d84e200cc1a62..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.assert/assert.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,103 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>assert.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 8"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="10:25-10:27: @0[1]: _1 = const 10_i32
-10:9-10:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="11:11-11:20: @2[2]: _5 = _1
-11:11-11:24: @2[3]: _4 = Gt(move _5, const 0_i32)
-11:11-11:24: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown &gt; 0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="12:12-12:21: @5[3]: _8 = _1
-12:12-12:26: @5[4]: _7 = Eq(move _8, const 1_i32)
-12:12-12:26: @5[6]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@3,5⦊</span>countdown == 1<span class="annotation">⦉@3,5</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="13:13-13:33: @8.Call: _9 = might_fail_assert(const 3_u32) -&gt; [return: bb9, unwind: bb17]
-12:27-14:10: @9[1]: _6 = const ()"><span class="annotation">@6,8,9⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="13:13-13:33: @8.Call: _9 = might_fail_assert(const 3_u32) -&gt; [return: bb9, unwind: bb17]
-12:27-14:10: @9[1]: _6 = const ()">            might_fail_assert(3);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="13:13-13:33: @8.Call: _9 = might_fail_assert(const 3_u32) -&gt; [return: bb9, unwind: bb17]
-12:27-14:10: @9[1]: _6 = const ()">        }<span class="annotation">⦉@6,8,9</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code even" style="--layer: 1" title="14:19-14:28: @7[2]: _11 = _1
-14:19-14:32: @7[3]: _10 = Lt(move _11, const 5_i32)
-14:19-14:32: @7[5]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@7⦊</span>countdown &lt; 5<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="15:13-15:33: @12.Call: _12 = might_fail_assert(const 2_u32) -&gt; [return: bb13, unwind: bb17]
-14:33-16:10: @13[1]: _6 = const ()"><span class="annotation">@10,12,13⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="15:13-15:33: @12.Call: _12 = might_fail_assert(const 2_u32) -&gt; [return: bb13, unwind: bb17]
-14:33-16:10: @13[1]: _6 = const ()">            might_fail_assert(2);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="15:13-15:33: @12.Call: _12 = might_fail_assert(const 2_u32) -&gt; [return: bb13, unwind: bb17]
-14:33-16:10: @13[1]: _6 = const ()">        }<span class="annotation">⦉@10,12,13</span></span></span><span><span class="code even" style="--layer: 1" title="16:10-16:10: @11.Goto: goto -&gt; bb14"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span><span><span class="code odd" style="--layer: 1" title="16:10-16:10: @14.Goto: goto -&gt; bb15"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="17:9-17:23: @15[2]: _13 = CheckedSub(_1, const 1_i32)
-17:9-17:23: @16[0]: _1 = move (_13.0: i32)"><span class="annotation">@15,16⦊</span>countdown -= 1<span class="annotation">⦉@15,16</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="19:8-19:10: @4[4]: _15 = ()
-19:5-19:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)
-20:2-20:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="19:8-19:10: @4[4]: _15 = ()
-19:5-19:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)
-20:2-20:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.assert/assert.might_fail_assert.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.assert/assert.might_fail_assert.-------.InstrumentCoverage.0.html
deleted file mode 100644
index c03fc8e416e5e..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.assert/assert.might_fail_assert.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,97 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.might_fail_assert.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>assert.might_fail_assert - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn might_fail_assert(one_plus_one: u32) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="5:14-5:32: @0[6]: _75 = const might_fail_assert::promoted[4]
-5:14-5:32: @0[7]: _7 = &amp;(*_75)
-5:14-5:32: @0[8]: _6 = &amp;(*_7)
-5:14-5:32: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-5:34-5:46: @0[17]: _14 = &amp;_1
-5:5-5:48: @0[18]: _13 = (move _14,)
-5:5-5:48: @0[20]: FakeRead(ForMatchedPlace, _13)
-5:5-5:48: @0[22]: _15 = (_13.0: &amp;u32)
-5:5-5:48: @0[25]: _17 = &amp;(*_15)
-5:5-5:48: @0[27]: _18 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-5:5-5:48: @0.Call: _16 = ArgumentV1::new::&lt;u32&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb13]
-5:5-5:48: @1[2]: _12 = [move _16]
-5:5-5:48: @1[5]: _11 = &amp;_12
-5:5-5:48: @1[6]: _10 = &amp;(*_11)
-5:5-5:48: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-5:5-5:48: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb13]
-5:5-5:48: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb13]
-5:5-5:48: @3[6]: _2 = const ()"><span class="annotation">@0,1,2,3,4⦊</span>println!("does 1 + 1 = {}?", one_plus_one);<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    assert_eq!(</span><span><span class="code even" style="--layer: 1" title="6:16-6:21: @3[11]: _23 = CheckedAdd(const 1_u32, const 1_u32)"><span class="annotation">@0,1,2,3,4⦊</span>1 + 1<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">, one_plus_one, </span><span><span class="code odd" style="--layer: 1" title="6:37-6:61: @7[30]: _72 = const might_fail_assert::promoted[1]
-6:37-6:61: @7[31]: _52 = &amp;(*_72)
-6:37-6:61: @7[32]: _51 = &amp;(*_52)
-6:37-6:61: @7[33]: _50 = move _51 as &amp;[&amp;str] (Pointer(Unsize))"><span class="annotation">@5,7,8,9,10,11,12⦊</span>"the argument was wrong"<span class="annotation">⦉@5,7,8,9,10,11,12</span></span></span><span class="code" style="--layer: 0">);</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="7:2-7:2: @6.Return: return"><span class="annotation">@6⦊</span>‸<span class="annotation">⦉@6</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 4689c34ca0fba..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,89 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.executor-block_on-VTABLE-{closure#0} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 13"><span class="line">                                 <span class="code" style="--layer: 0">{</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="15:38-15:74: @1[3]: _15 = (move _16,)
-15:38-15:74: @1[5]: FakeRead(ForMatchedPlace, _15)
-15:38-15:74: @1[7]: _27 = (_15.0: &amp;std::fmt::Arguments)
-15:38-15:74: @1[10]: _29 = &amp;(*_27)
-15:38-15:74: @1[12]: _30 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-15:38-15:74: @1.Call: _28 = ArgumentV1::new::&lt;Arguments&gt;(move _29, move _30) -&gt; [return: bb2, unwind: bb4]
-15:38-15:74: @2[2]: _14 = [move _28]
-15:38-15:74: @2[5]: _13 = &amp;_14
-15:38-15:74: @2[6]: _12 = &amp;(*_13)
-15:38-15:74: @2[7]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-15:38-15:74: @2.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb3, unwind: bb4]
-15:37-15:74: @3[2]: _5 = &amp;_6
-15:37-15:74: @3[3]: _4 = &amp;(*_5)
-15:9-15:75: @3.Call: begin_panic_fmt(move _4) -&gt; bb4"><span class="annotation">@0,1,2,3⦊</span>$crate::rt::begin_panic_fmt(&amp;$crate::format_args!($fmt, $($arg)+))<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#1}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#1}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index ccfb1dd0a37c3..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#1}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,89 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-%7Bclosure%231%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.executor-block_on-VTABLE-{closure#1} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 13"><span class="line">                                 <span class="code" style="--layer: 0">{</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="15:38-15:74: @1[3]: _15 = (move _16,)
-15:38-15:74: @1[5]: FakeRead(ForMatchedPlace, _15)
-15:38-15:74: @1[7]: _27 = (_15.0: &amp;std::fmt::Arguments)
-15:38-15:74: @1[10]: _29 = &amp;(*_27)
-15:38-15:74: @1[12]: _30 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-15:38-15:74: @1.Call: _28 = ArgumentV1::new::&lt;Arguments&gt;(move _29, move _30) -&gt; [return: bb2, unwind: bb4]
-15:38-15:74: @2[2]: _14 = [move _28]
-15:38-15:74: @2[5]: _13 = &amp;_14
-15:38-15:74: @2[6]: _12 = &amp;(*_13)
-15:38-15:74: @2[7]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-15:38-15:74: @2.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb3, unwind: bb4]
-15:37-15:74: @3[2]: _5 = &amp;_6
-15:37-15:74: @3[3]: _4 = &amp;(*_5)
-15:9-15:75: @3.Call: begin_panic_fmt(move _4) -&gt; bb4"><span class="annotation">@0,1,2,3⦊</span>$crate::rt::begin_panic_fmt(&amp;$crate::format_args!($fmt, $($arg)+))<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#2}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#2}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 2d402b83081c3..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#2}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,89 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-%7Bclosure%232%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.executor-block_on-VTABLE-{closure#2} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 13"><span class="line">                                 <span class="code" style="--layer: 0">{</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="15:38-15:74: @1[3]: _15 = (move _16,)
-15:38-15:74: @1[5]: FakeRead(ForMatchedPlace, _15)
-15:38-15:74: @1[7]: _27 = (_15.0: &amp;std::fmt::Arguments)
-15:38-15:74: @1[10]: _29 = &amp;(*_27)
-15:38-15:74: @1[12]: _30 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-15:38-15:74: @1.Call: _28 = ArgumentV1::new::&lt;Arguments&gt;(move _29, move _30) -&gt; [return: bb2, unwind: bb4]
-15:38-15:74: @2[2]: _14 = [move _28]
-15:38-15:74: @2[5]: _13 = &amp;_14
-15:38-15:74: @2[6]: _12 = &amp;(*_13)
-15:38-15:74: @2[7]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-15:38-15:74: @2.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb3, unwind: bb4]
-15:37-15:74: @3[2]: _5 = &amp;_6
-15:37-15:74: @3[3]: _4 = &amp;(*_5)
-15:9-15:75: @3.Call: begin_panic_fmt(move _4) -&gt; bb4"><span class="annotation">@0,1,2,3⦊</span>$crate::rt::begin_panic_fmt(&amp;$crate::format_args!($fmt, $($arg)+))<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 583a67e6c7fb7..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,226 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.executor-block_on - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 45"><span class="line">    <span class="code" style="--layer: 0">pub fn block_on&lt;F: Future&gt;(mut future: F) -&gt; F::Output {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)"><span class="annotation">@0,1,2,3,4,5⦊</span>mut future = unsafe { Pin::new_unchecked(&amp;mut future) };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">        static VTABLE: RawWakerVTable = RawWakerVTable::new(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("clone"),</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("wake"),</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("wake_by_ref"),</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">            |_| (),</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">        );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">        let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &amp;VTABLE)) };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">        let mut context = Context::from_waker(&amp;waker)<span class="annotation">⦉@0,1,2,3,4,5</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        loop {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            if let Poll::Ready(</span><span><span class="code odd" style="--layer: 1" title="59:32-59:35: @12[1]: _20 = move ((_14 as Ready).0: &lt;F as std::future::Future&gt;::Output)"><span class="annotation">@10,12,14,15,16,17⦊</span>val<span class="annotation">⦉@10,12,14,15,16,17</span></span></span><span class="code" style="--layer: 0">) = </span><span><span class="code even" style="--layer: 1" title="59:39-59:45: @7[3]: _16 = &amp;mut _2
-59:39-59:54: @7.Call: _15 = Pin::&lt;&amp;mut F&gt;::as_mut(move _16) -&gt; [return: bb8, unwind: bb19]
-59:60-59:72: @8[3]: _18 = &amp;mut _10
-59:60-59:72: @8[4]: _17 = &amp;mut (*_18)
-59:39-59:73: @8.Call: _14 = &lt;F as Future&gt;::poll(move _15, move _17) -&gt; [return: bb9, unwind: bb19]
-59:39-59:73: @9[2]: FakeRead(ForMatchedPlace, _14)"><span class="annotation">@6,7,8,9⦊</span>future.as_mut().poll(&amp;mut context)<span class="annotation">⦉@6,7,8,9</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                break </span><span><span class="code odd" style="--layer: 1" title="60:23-60:26: @12[2]: _0 = move _20"><span class="annotation">@10,12,14,15,16,17⦊</span>val<span class="annotation">⦉@10,12,14,15,16,17</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span><span><span class="code even" style="--layer: 1" title="62:10-62:10: @13.Goto: goto -&gt; bb6"><span class="annotation">@11,13⦊</span>‸<span class="annotation">⦉@11,13</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="63:6-63:6: @17.Return: return"><span class="annotation">@10,12,14,15,16,17⦊</span>‸<span class="annotation">⦉@10,12,14,15,16,17</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.foo-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.foo-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index d3b9609a7f34d..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.foo-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,75 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.foo-{closure#0} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 6"><span class="line">                             <span class="code" style="--layer: 0">{ </span><span><span class="code even" style="--layer: 1" title="7:32-7:43: @0[0]: _0 = [const false; 10]
-7:45-7:45: @0.Return: return"><span class="annotation">@0⦊</span>[false; 10] }<span class="annotation">⦉@0</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.g-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.g-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 9967a387a05db..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.g-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,80 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.g-{closure#0} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 8"><span class="line">                      <span><span class="code even" style="--layer: 1" title="10:11-10:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:11-10:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="11:9-11:10: @16[3]: _4 = _3"><span class="annotation">@16⦊</span>y<span class="annotation">⦉@16</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="11:14-11:17: @2.Call: _8 = f() -&gt; [return: bb3, unwind: bb30]
-11:14-11:17: @3[0]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,2,3⦊</span>f()<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0">.await == </span><span><span class="code odd" style="--layer: 1" title="11:27-11:28: @14[2]: _24 = (*_5)"><span class="annotation">@9,12,14,15⦊</span>y<span class="annotation">⦉@9,12,14,15</span></span></span><span><span class="code even" style="--layer: 1" title="11:28-11:28: @17.Goto: goto -&gt; bb1"><span class="annotation">@17⦊</span>‸<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="11:32-11:34: @16[4]: _0 = ()"><span class="annotation">@16⦊</span>()<span class="annotation">⦉@16</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="12:14-12:16: @1[0]: _0 = ()"><span class="annotation">@1⦊</span>()<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="14:2-14:2: @19.Return: return"><span class="annotation">@18,19⦊</span>‸<span class="annotation">⦉@18,19</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.h-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.h-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 986a4b198cbe0..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.h-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,80 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.h-{closure#0} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
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-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
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-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
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-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 17"><span class="line">                     <span><span class="code even" style="--layer: 1" title="19:11-19:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:11-19:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="20:9-20:10: @17[3]: _4 = _3"><span class="annotation">@17⦊</span>y<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="20:14-20:19: @2.Call: _8 = foo() -&gt; [return: bb3, unwind: bb33]
-20:14-20:19: @3[0]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,2,3⦊</span>foo()<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0">.await[</span><span><span class="code odd" style="--layer: 1" title="20:26-20:27: @14[2]: _24 = (*_5)"><span class="annotation">@9,12,14,15,16⦊</span>y<span class="annotation">⦉@9,12,14,15,16</span></span></span><span class="code" style="--layer: 0">]</span><span><span class="code even" style="--layer: 1" title="20:28-20:28: @18.Goto: goto -&gt; bb1"><span class="annotation">@18⦊</span>‸<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="20:32-20:34: @17[4]: _0 = ()"><span class="annotation">@17⦊</span>()<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="21:14-21:16: @1[0]: _0 = ()"><span class="annotation">@1⦊</span>()<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="23:2-23:2: @20.Return: return"><span class="annotation">@19,20⦊</span>‸<span class="annotation">⦉@19,20</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.i-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.i-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index ab9bbf85dd7a1..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.i-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,82 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.i-{closure#0} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
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-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
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-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
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-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 24"><span class="line">                  <span><span class="code even" style="--layer: 1" title="26:11-26:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="26:11-26:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="27:9-27:10: @17[3]: _4 = _3"><span class="annotation">@17⦊</span>y<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="27:14-27:17: @2.Call: _8 = f() -&gt; [return: bb3, unwind: bb33]
-27:14-27:17: @3[0]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,2,3⦊</span>f()<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0">.await == </span><span><span class="code odd" style="--layer: 1" title="27:27-27:28: @14[3]: _25 = (*_5)
-27:27-27:32: @14[4]: _26 = CheckedAdd(_25, const 1_u8)
-27:27-27:32: @15[0]: _24 = move (_26.0: u8)"><span class="annotation">@9,12,14,15,16⦊</span>y + 1<span class="annotation">⦉@9,12,14,15,16</span></span></span><span><span class="code even" style="--layer: 1" title="27:32-27:32: @18.Goto: goto -&gt; bb1"><span class="annotation">@18⦊</span>‸<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="27:36-27:38: @17[4]: _0 = ()"><span class="annotation">@17⦊</span>()<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="28:14-28:16: @1[0]: _0 = ()"><span class="annotation">@1⦊</span>()<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="30:2-30:2: @20.Return: return"><span class="annotation">@19,20⦊</span>‸<span class="annotation">⦉@19,20</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 007da5c0ec109..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,133 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>async.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 31"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8,9⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">    let _ = g(10);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">    let _ = h(9);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">    let mut future = Box::pin(i(8));</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">    executor::block_on(future.as_mut());</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">}<span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index b68c0a1cabe35..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,95 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>closure.main-{closure#0} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
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-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 32"><span class="line">        <span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="35:29-35:30: @0[1]: _2 = const 0_i32
-35:13-35:26: @0[2]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="36:12-36:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
-36:12-36:20: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="37:13-37:27: @3[0]: _2 = const 10_i32
-36:21-38:10: @3[1]: _3 = const ()
-38:10-38:10: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="37:13-37:27: @3[0]: _2 = const 10_i32
-36:21-38:10: @3[1]: _3 = const ()
-38:10-38:10: @3.Goto: goto -&gt; bb4">            countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="37:13-37:27: @3[0]: _2 = const 10_i32
-36:21-38:10: @3[1]: _3 = const ()
-38:10-38:10: @3.Goto: goto -&gt; bb4">        }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="38:10-38:10: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="39:9-39:23: @4[4]: _6 = const &quot;alt string 2&quot;
-39:9-39:23: @4[5]: _5 = &amp;(*_6)
-39:9-39:34: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
-40:6-40:6: @5.Return: return"><span class="annotation">@4,5⦊</span>"alt string 2".to_owned()</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="39:9-39:23: @4[4]: _6 = const &quot;alt string 2&quot;
-39:9-39:23: @4[5]: _5 = &amp;(*_6)
-39:9-39:34: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
-40:6-40:6: @5.Return: return">    }<span class="annotation">⦉@4,5</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#1}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#1}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 9358fd4b13670..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#1}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,95 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%231%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>closure.main-{closure#1} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 74"><span class="line">        <span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="77:29-77:30: @0[1]: _2 = const 0_i32
-77:13-77:26: @0[2]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="78:12-78:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
-78:12-78:20: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="79:13-79:27: @3[0]: _2 = const 10_i32
-78:21-80:10: @3[1]: _3 = const ()
-80:10-80:10: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="79:13-79:27: @3[0]: _2 = const 10_i32
-78:21-80:10: @3[1]: _3 = const ()
-80:10-80:10: @3.Goto: goto -&gt; bb4">            countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="79:13-79:27: @3[0]: _2 = const 10_i32
-78:21-80:10: @3[1]: _3 = const ()
-80:10-80:10: @3.Goto: goto -&gt; bb4">        }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="80:10-80:10: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="81:9-81:23: @4[4]: _6 = const &quot;alt string 4&quot;
-81:9-81:23: @4[5]: _5 = &amp;(*_6)
-81:9-81:34: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
-82:6-82:6: @5.Return: return"><span class="annotation">@4,5⦊</span>"alt string 4".to_owned()</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="81:9-81:23: @4[4]: _6 = const &quot;alt string 4&quot;
-81:9-81:23: @4[5]: _5 = &amp;(*_6)
-81:9-81:34: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
-82:6-82:6: @5.Return: return">    }<span class="annotation">⦉@4,5</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 2d41918efb2ec..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,4515 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>closure.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    // dependent conditions.</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    let is_true = std::env::args().len() == 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    let is_false = ! is_true;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    let mut some_string = Some(String::from("the string content"));</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    println!(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        "The string or alt: {}"</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        ,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        some_string</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            .</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            unwrap_or_else</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        (</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span><span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">            {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                let mut countdown = 0;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                if is_false {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                    countdown = 10;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                }</span></span>
-<span class="line"><span class="code" style="--layer: 0">                "alt string 1".to_owned()</span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">        )</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">    );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">    some_string = Some(String::from("the string content"));</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">    let</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">        a</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">    =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">        <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span><span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let mut countdown = 0;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if is_false {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            countdown = 10;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        "alt string 2".to_owned()</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span>;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    println!(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        "The string or alt: {}"</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        ,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        some_string</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            .</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            unwrap_or_else</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        (</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            a</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        )</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    some_string = None;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    println!(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        "The string or alt: {}"</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        ,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        some_string</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            .</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            unwrap_or_else</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        (</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span><span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">            {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                let mut countdown = 0;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                if is_false {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                    countdown = 10;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                }</span></span>
-<span class="line"><span class="code" style="--layer: 0">                "alt string 3".to_owned()</span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">        )</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">    );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">    some_string = None;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">    let</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">        a</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">    =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">        <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span><span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let mut countdown = 0;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if is_false {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            countdown = 10;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        "alt string 4".to_owned()</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span>;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">    println!(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        "The string or alt: {}"</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        ,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        some_string</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">            .</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">            unwrap_or_else</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        (</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">            a</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        )</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">    );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-8:22-8:29: @3[3]: _6 = _1
-8:20-8:29: @3[4]: _5 = Not(move _6)
-8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
-10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
-10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
-12:9-12:32: @5[10]: _13 = &amp;(*_14)
-12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
-14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
-14:9-26:10: @6[2]: _21 = &amp;_22
-11:5-27:7: @6[3]: _20 = (move _21,)
-11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
-11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
-11:5-27:7: @6[10]: _28 = &amp;(*_26)
-11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
-11:5-27:7: @7[2]: _19 = [move _27]
-11:5-27:7: @7[5]: _18 = &amp;_19
-11:5-27:7: @7[6]: _17 = &amp;(*_18)
-11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
-11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
-29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
-33:9-40:6: @14[3]: _33 = &amp;_5
-31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
-42:9-42:32: @14[15]: _38 = &amp;(*_39)
-42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
-44:9-44:20: @14[26]: _48 = move _7
-48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
-44:9-49:10: @15[2]: _46 = &amp;_47
-41:5-50:7: @15[3]: _45 = (move _46,)
-41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
-41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
-41:5-50:7: @15[10]: _52 = &amp;(*_50)
-41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
-41:5-50:7: @16[2]: _44 = [move _51]
-41:5-50:7: @16[5]: _43 = &amp;_44
-41:5-50:7: @16[6]: _42 = &amp;(*_43)
-41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
-41:5-50:7: @19[6]: _34 = const ()
-52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
-54:9-54:32: @21[9]: _59 = &amp;(*_60)
-54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
-56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
-56:9-68:10: @22[2]: _67 = &amp;_68
-53:5-69:7: @22[3]: _66 = (move _67,)
-53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
-53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
-53:5-69:7: @22[10]: _74 = &amp;(*_72)
-53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
-53:5-69:7: @23[2]: _65 = [move _73]
-53:5-69:7: @23[5]: _64 = &amp;_65
-53:5-69:7: @23[6]: _63 = &amp;(*_64)
-53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
-53:5-69:7: @26[6]: _55 = const ()
-71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
-73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
-84:9-84:32: @28[15]: _83 = &amp;(*_84)
-84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
-86:9-86:20: @28[26]: _93 = move _7
-90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
-86:9-91:10: @29[2]: _91 = &amp;_92
-83:5-92:7: @29[3]: _90 = (move _91,)
-83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
-83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
-83:5-92:7: @29[10]: _97 = &amp;(*_95)
-83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
-83:5-92:7: @30[2]: _89 = [move _96]
-83:5-92:7: @30[5]: _88 = &amp;_89
-83:5-92:7: @30[6]: _87 = &amp;(*_88)
-83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
-83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">}<span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.conditions/conditions.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.conditions/conditions.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index e6f95385910dc..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.conditions/conditions.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,353 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.conditions/conditions.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>conditions.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
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-        color: #dddddd;
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-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
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-    .even {
-        background-color: #ee7756;
-        color: #551133;
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-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="4:25-4:26: @0[1]: _1 = const 0_u32
-4:9-4:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="5:8-5:12: @0[5]: _3 = const true
-5:8-5:12: @0[6]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0⦊</span>true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="6:9-6:23: @3[0]: _1 = const 10_u32
-5:13-7:6: @3[1]: _2 = const ()
-7:6-7:6: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="6:9-6:23: @3[0]: _1 = const 10_u32
-5:13-7:6: @3[1]: _2 = const ()
-7:6-7:6: @3.Goto: goto -&gt; bb4">        countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="6:9-6:23: @3[0]: _1 = const 10_u32
-5:13-7:6: @3[1]: _2 = const ()
-7:6-7:6: @3.Goto: goto -&gt; bb4">    }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="7:6-7:6: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    const B: u32 = 100;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="10:9-10:10: @25[0]: FakeRead(ForLet, _4)"><span class="annotation">@25⦊</span>x<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0"> = if </span><span><span class="code even" style="--layer: 1" title="10:16-10:25: @4[5]: _6 = _1
-10:16-10:29: @4[6]: _5 = Gt(move _6, const 7_u32)
-10:16-10:29: @4[8]: FakeRead(ForMatchedPlace, _5)"><span class="annotation">@4⦊</span>countdown &gt; 7<span class="annotation">⦉@4</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="11:9-11:23: @7[0]: _7 = CheckedSub(_1, const 4_u32)
-11:9-11:23: @8[0]: _1 = move (_7.0: u32)
-12:9-12:10: @8[1]: _4 = const B"><span class="annotation">@5,7,8⦊</span>countdown -= 4;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:23: @7[0]: _7 = CheckedSub(_1, const 4_u32)
-11:9-11:23: @8[0]: _1 = move (_7.0: u32)
-12:9-12:10: @8[1]: _4 = const B">        B<span class="annotation">⦉@5,7,8</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    } else if </span><span><span class="code even" style="--layer: 1" title="13:15-13:24: @6[2]: _9 = _1
-13:15-13:28: @6[3]: _8 = Gt(move _9, const 2_u32)
-13:15-13:28: @6[5]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@6⦊</span>countdown &gt; 2<span class="annotation">⦉@6</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="14:12-14:21: @11[5]: _14 = _1
-14:12-14:25: @11[6]: _13 = Lt(move _14, const 1_u32)"><span class="annotation">@9,11⦊</span>countdown &lt; 1<span class="annotation">⦉@9,11</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="14:29-14:38: @18[2]: _16 = _1
-14:29-14:42: @18[3]: _15 = Gt(move _16, const 5_u32)"><span class="annotation">@18⦊</span>countdown &gt; 5<span class="annotation">⦉@18</span></span></span><span><span class="code odd" style="--layer: 1" title="14:42-14:42: @16.Goto: goto -&gt; bb19"><span class="annotation">@16⦊</span>‸<span class="annotation">⦉@16</span></span></span><span><span class="code even" style="--layer: 1" title="14:42-14:42: @17.Goto: goto -&gt; bb19"><span class="annotation">@17⦊</span>‸<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="14:46-14:55: @14[2]: _18 = _1
-14:46-14:60: @14[3]: _17 = Ne(move _18, const 9_u32)"><span class="annotation">@14⦊</span>countdown != 9<span class="annotation">⦉@14</span></span></span><span><span class="code even" style="--layer: 1" title="14:60-14:60: @12.Goto: goto -&gt; bb15"><span class="annotation">@12⦊</span>‸<span class="annotation">⦉@12</span></span></span><span><span class="code odd" style="--layer: 1" title="14:60-14:60: @13.Goto: goto -&gt; bb15"><span class="annotation">@13⦊</span>‸<span class="annotation">⦉@13</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="15:13-15:26: @22[0]: _1 = const 0_u32
-14:61-16:10: @22[1]: _10 = const ()
-16:10-16:10: @22.Goto: goto -&gt; bb23"><span class="annotation">@20,22⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="15:13-15:26: @22[0]: _1 = const 0_u32
-14:61-16:10: @22[1]: _10 = const ()
-16:10-16:10: @22.Goto: goto -&gt; bb23">            countdown = 0;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="15:13-15:26: @22[0]: _1 = const 0_u32
-14:61-16:10: @22[1]: _10 = const ()
-16:10-16:10: @22.Goto: goto -&gt; bb23">        }<span class="annotation">⦉@20,22</span></span></span><span><span class="code odd" style="--layer: 1" title="16:10-16:10: @21.Goto: goto -&gt; bb23"><span class="annotation">@21⦊</span>‸<span class="annotation">⦉@21</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="17:9-17:23: @23[2]: _19 = CheckedSub(_1, const 5_u32)
-17:9-17:23: @24[0]: _1 = move (_19.0: u32)
-18:9-18:18: @24[1]: _4 = _1"><span class="annotation">@23,24⦊</span>countdown -= 5;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="17:9-17:23: @23[2]: _19 = CheckedSub(_1, const 5_u32)
-17:9-17:23: @24[0]: _1 = move (_19.0: u32)
-18:9-18:18: @24[1]: _4 = _1">        countdown<span class="annotation">⦉@23,24</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="20:9-20:15: @10[0]: _0 = const ()"><span class="annotation">@10⦊</span>return<span class="annotation">⦉@10</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    };</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="23:25-23:26: @25[3]: _21 = const 0_i32
-23:9-23:22: @25[4]: FakeRead(ForLet, _21)"><span class="annotation">@25⦊</span>mut countdown = 0<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="24:8-24:12: @25[7]: _23 = const true
-24:8-24:12: @25[8]: FakeRead(ForMatchedPlace, _23)"><span class="annotation">@25⦊</span>true<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="25:9-25:23: @28[0]: _21 = const 10_i32
-24:13-26:6: @28[1]: _22 = const ()
-26:6-26:6: @28.Goto: goto -&gt; bb29"><span class="annotation">@26,28⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="25:9-25:23: @28[0]: _21 = const 10_i32
-24:13-26:6: @28[1]: _22 = const ()
-26:6-26:6: @28.Goto: goto -&gt; bb29">        countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="25:9-25:23: @28[0]: _21 = const 10_i32
-24:13-26:6: @28[1]: _22 = const ()
-26:6-26:6: @28.Goto: goto -&gt; bb29">    }<span class="annotation">⦉@26,28</span></span></span><span><span class="code even" style="--layer: 1" title="26:6-26:6: @27.Goto: goto -&gt; bb29"><span class="annotation">@27⦊</span>‸<span class="annotation">⦉@27</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="28:8-28:17: @29[5]: _26 = _21
-28:8-28:21: @29[6]: _25 = Gt(move _26, const 7_i32)
-28:8-28:21: @29[8]: FakeRead(ForMatchedPlace, _25)"><span class="annotation">@29⦊</span>countdown &gt; 7<span class="annotation">⦉@29</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="29:9-29:23: @32[0]: _27 = CheckedSub(_21, const 4_i32)
-29:9-29:23: @33[0]: _21 = move (_27.0: i32)
-28:22-30:6: @33[1]: _24 = const ()"><span class="annotation">@30,32,33⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="29:9-29:23: @32[0]: _27 = CheckedSub(_21, const 4_i32)
-29:9-29:23: @33[0]: _21 = move (_27.0: i32)
-28:22-30:6: @33[1]: _24 = const ()">        countdown -= 4;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="29:9-29:23: @32[0]: _27 = CheckedSub(_21, const 4_i32)
-29:9-29:23: @33[0]: _21 = move (_27.0: i32)
-28:22-30:6: @33[1]: _24 = const ()">    }<span class="annotation">⦉@30,32,33</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code odd" style="--layer: 1" title="30:15-30:24: @31[2]: _29 = _21
-30:15-30:28: @31[3]: _28 = Gt(move _29, const 2_i32)
-30:15-30:28: @31[5]: FakeRead(ForMatchedPlace, _28)"><span class="annotation">@31⦊</span>countdown &gt; 2<span class="annotation">⦉@31</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="31:12-31:21: @36[5]: _34 = _21
-31:12-31:25: @36[6]: _33 = Lt(move _34, const 1_i32)"><span class="annotation">@34,36⦊</span>countdown &lt; 1<span class="annotation">⦉@34,36</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="31:29-31:38: @43[2]: _36 = _21
-31:29-31:42: @43[3]: _35 = Gt(move _36, const 5_i32)"><span class="annotation">@43⦊</span>countdown &gt; 5<span class="annotation">⦉@43</span></span></span><span><span class="code even" style="--layer: 1" title="31:42-31:42: @41.Goto: goto -&gt; bb44"><span class="annotation">@41⦊</span>‸<span class="annotation">⦉@41</span></span></span><span><span class="code odd" style="--layer: 1" title="31:42-31:42: @42.Goto: goto -&gt; bb44"><span class="annotation">@42⦊</span>‸<span class="annotation">⦉@42</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="31:46-31:55: @39[2]: _38 = _21
-31:46-31:60: @39[3]: _37 = Ne(move _38, const 9_i32)"><span class="annotation">@39⦊</span>countdown != 9<span class="annotation">⦉@39</span></span></span><span><span class="code odd" style="--layer: 1" title="31:60-31:60: @37.Goto: goto -&gt; bb40"><span class="annotation">@37⦊</span>‸<span class="annotation">⦉@37</span></span></span><span><span class="code even" style="--layer: 1" title="31:60-31:60: @38.Goto: goto -&gt; bb40"><span class="annotation">@38⦊</span>‸<span class="annotation">⦉@38</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="32:13-32:26: @47[0]: _21 = const 0_i32
-31:61-33:10: @47[1]: _30 = const ()
-33:10-33:10: @47.Goto: goto -&gt; bb48"><span class="annotation">@45,47⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="32:13-32:26: @47[0]: _21 = const 0_i32
-31:61-33:10: @47[1]: _30 = const ()
-33:10-33:10: @47.Goto: goto -&gt; bb48">            countdown = 0;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="32:13-32:26: @47[0]: _21 = const 0_i32
-31:61-33:10: @47[1]: _30 = const ()
-33:10-33:10: @47.Goto: goto -&gt; bb48">        }<span class="annotation">⦉@45,47</span></span></span><span><span class="code even" style="--layer: 1" title="33:10-33:10: @46.Goto: goto -&gt; bb48"><span class="annotation">@46⦊</span>‸<span class="annotation">⦉@46</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="34:9-34:23: @48[2]: _39 = CheckedSub(_21, const 5_i32)
-34:9-34:23: @49[0]: _21 = move (_39.0: i32)"><span class="annotation">@48,49⦊</span>countdown -= 5<span class="annotation">⦉@48,49</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="36:9-36:15: @35[0]: _0 = const ()"><span class="annotation">@35⦊</span>return<span class="annotation">⦉@35</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="39:8-39:12: @50[4]: _42 = const true
-39:8-39:12: @50[5]: FakeRead(ForMatchedPlace, _42)"><span class="annotation">@50⦊</span>true<span class="annotation">⦉@50</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // Demonstrate the difference with `TerminatorKind::Assert` as of 2020-11-15. Assert is no</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // longer treated as a `BasicCoverageBlock` terminator, which changed the coverage region,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // for the executed `then` block above, to include the closing brace on line 30. That</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // changed the line count, but the coverage code region (for the `else if` condition) is</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // still valid.</span></span>
-<span class="line"><span class="code" style="--layer: 0">        //</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // Note that `if` (then) and `else` blocks include the closing brace in their coverage</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // code regions when the last line in the block ends in a semicolon, because the Rust</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // compiler inserts a `StatementKind::Assign` to assign `const ()` to a `Place`, for the</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // empty value for the executed block. When the last line does not end in a semicolon</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // (that is, when the block actually results in a value), the additional `Assign` is not</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // generated, and the brace is not included.</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="52:29-52:30: @53[1]: _43 = const 0_i32
-52:13-52:26: @53[2]: FakeRead(ForLet, _43)"><span class="annotation">@51,53⦊</span>mut countdown = 0<span class="annotation">⦉@51,53</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="53:12-53:16: @53[5]: _45 = const true
-53:12-53:16: @53[6]: FakeRead(ForMatchedPlace, _45)"><span class="annotation">@51,53⦊</span>true<span class="annotation">⦉@51,53</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="54:13-54:27: @56[0]: _43 = const 10_i32
-53:17-55:10: @56[1]: _44 = const ()
-55:10-55:10: @56.Goto: goto -&gt; bb57"><span class="annotation">@54,56⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="54:13-54:27: @56[0]: _43 = const 10_i32
-53:17-55:10: @56[1]: _44 = const ()
-55:10-55:10: @56.Goto: goto -&gt; bb57">            countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="54:13-54:27: @56[0]: _43 = const 10_i32
-53:17-55:10: @56[1]: _44 = const ()
-55:10-55:10: @56.Goto: goto -&gt; bb57">        }<span class="annotation">⦉@54,56</span></span></span><span><span class="code even" style="--layer: 1" title="55:10-55:10: @55.Goto: goto -&gt; bb57"><span class="annotation">@55⦊</span>‸<span class="annotation">⦉@55</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="57:12-57:21: @57[4]: _47 = _43
-57:12-57:25: @57[5]: _46 = Gt(move _47, const 7_i32)
-57:12-57:25: @57[7]: FakeRead(ForMatchedPlace, _46)"><span class="annotation">@57⦊</span>countdown &gt; 7<span class="annotation">⦉@57</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="58:13-58:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
-58:13-58:27: @61[0]: _43 = move (_48.0: i32)
-57:26-59:10: @61[1]: _41 = const ()"><span class="annotation">@58,60,61⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="58:13-58:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
-58:13-58:27: @61[0]: _43 = move (_48.0: i32)
-57:26-59:10: @61[1]: _41 = const ()">            countdown -= 4;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="58:13-58:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
-58:13-58:27: @61[0]: _43 = move (_48.0: i32)
-57:26-59:10: @61[1]: _41 = const ()">        }<span class="annotation">⦉@58,60,61</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        // The closing brace of the `then` branch is now included in the coverage region, and shown</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // as "executed" (giving its line a count of 1 here). Since, in the original version above,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // the closing brace shares the same line as the `else if` conditional expression (which is</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // not executed if the first `then` condition is true), only the condition's code region is</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // marked with a count of 0 now.</span></span>
-<span class="line"><span class="code" style="--layer: 0">        else if </span><span><span class="code odd" style="--layer: 1" title="65:17-65:26: @59[2]: _50 = _43
-65:17-65:30: @59[3]: _49 = Gt(move _50, const 2_i32)
-65:17-65:30: @59[5]: FakeRead(ForMatchedPlace, _49)"><span class="annotation">@59⦊</span>countdown &gt; 2<span class="annotation">⦉@59</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            if </span><span><span class="code even" style="--layer: 1" title="66:16-66:25: @64[5]: _55 = _43
-66:16-66:29: @64[6]: _54 = Lt(move _55, const 1_i32)"><span class="annotation">@62,64⦊</span>countdown &lt; 1<span class="annotation">⦉@62,64</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="66:33-66:42: @71[2]: _57 = _43
-66:33-66:46: @71[3]: _56 = Gt(move _57, const 5_i32)"><span class="annotation">@71⦊</span>countdown &gt; 5<span class="annotation">⦉@71</span></span></span><span><span class="code even" style="--layer: 1" title="66:46-66:46: @69.Goto: goto -&gt; bb72"><span class="annotation">@69⦊</span>‸<span class="annotation">⦉@69</span></span></span><span><span class="code odd" style="--layer: 1" title="66:46-66:46: @70.Goto: goto -&gt; bb72"><span class="annotation">@70⦊</span>‸<span class="annotation">⦉@70</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="66:50-66:59: @67[2]: _59 = _43
-66:50-66:64: @67[3]: _58 = Ne(move _59, const 9_i32)"><span class="annotation">@67⦊</span>countdown != 9<span class="annotation">⦉@67</span></span></span><span><span class="code odd" style="--layer: 1" title="66:64-66:64: @65.Goto: goto -&gt; bb68"><span class="annotation">@65⦊</span>‸<span class="annotation">⦉@65</span></span></span><span><span class="code even" style="--layer: 1" title="66:64-66:64: @66.Goto: goto -&gt; bb68"><span class="annotation">@66⦊</span>‸<span class="annotation">⦉@66</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="67:17-67:30: @75[0]: _43 = const 0_i32
-66:65-68:14: @75[1]: _51 = const ()
-68:14-68:14: @75.Goto: goto -&gt; bb76"><span class="annotation">@73,75⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="67:17-67:30: @75[0]: _43 = const 0_i32
-66:65-68:14: @75[1]: _51 = const ()
-68:14-68:14: @75.Goto: goto -&gt; bb76">                countdown = 0;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="67:17-67:30: @75[0]: _43 = const 0_i32
-66:65-68:14: @75[1]: _51 = const ()
-68:14-68:14: @75.Goto: goto -&gt; bb76">            }<span class="annotation">⦉@73,75</span></span></span><span><span class="code even" style="--layer: 1" title="68:14-68:14: @74.Goto: goto -&gt; bb76"><span class="annotation">@74⦊</span>‸<span class="annotation">⦉@74</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="69:13-69:27: @76[2]: _60 = CheckedSub(_43, const 5_i32)
-69:13-69:27: @77[0]: _43 = move (_60.0: i32)"><span class="annotation">@76,77⦊</span>countdown -= 5<span class="annotation">⦉@76,77</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="71:13-71:19: @63[0]: _0 = const ()"><span class="annotation">@63⦊</span>return<span class="annotation">⦉@63</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="73:6-73:6: @78.Goto: goto -&gt; bb79"><span class="annotation">@78⦊</span>‸<span class="annotation">⦉@78</span></span></span><span><span class="code even" style="--layer: 1" title="73:6-73:6: @52.Goto: goto -&gt; bb79"><span class="annotation">@52⦊</span>‸<span class="annotation">⦉@52</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="75:25-75:26: @79[3]: _62 = const 0_i32
-75:9-75:22: @79[4]: FakeRead(ForLet, _62)"><span class="annotation">@79⦊</span>mut countdown = 0<span class="annotation">⦉@79</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="76:8-76:12: @79[7]: _64 = const true
-76:8-76:12: @79[8]: FakeRead(ForMatchedPlace, _64)"><span class="annotation">@79⦊</span>true<span class="annotation">⦉@79</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="77:9-77:22: @82[0]: _62 = const 1_i32
-76:13-78:6: @82[1]: _63 = const ()
-78:6-78:6: @82.Goto: goto -&gt; bb83"><span class="annotation">@80,82⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="77:9-77:22: @82[0]: _62 = const 1_i32
-76:13-78:6: @82[1]: _63 = const ()
-78:6-78:6: @82.Goto: goto -&gt; bb83">        countdown = 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="77:9-77:22: @82[0]: _62 = const 1_i32
-76:13-78:6: @82[1]: _63 = const ()
-78:6-78:6: @82.Goto: goto -&gt; bb83">    }<span class="annotation">⦉@80,82</span></span></span><span><span class="code odd" style="--layer: 1" title="78:6-78:6: @81.Goto: goto -&gt; bb83"><span class="annotation">@81⦊</span>‸<span class="annotation">⦉@81</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="80:9-80:10: @106[0]: FakeRead(ForLet, _65)"><span class="annotation">@106⦊</span>z<span class="annotation">⦉@106</span></span></span><span class="code" style="--layer: 0"> = if </span><span><span class="code odd" style="--layer: 1" title="80:16-80:25: @83[5]: _67 = _62
-80:16-80:29: @83[6]: _66 = Gt(move _67, const 7_i32)
-80:16-80:29: @83[8]: FakeRead(ForMatchedPlace, _66)"><span class="annotation">@83⦊</span>countdown &gt; 7<span class="annotation">⦉@83</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="81:9-81:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
-81:9-81:23: @87[0]: _62 = move (_68.0: i32)
-80:30-82:6: @87[1]: _65 = const ()"><span class="annotation">@84,86,87⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="81:9-81:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
-81:9-81:23: @87[0]: _62 = move (_68.0: i32)
-80:30-82:6: @87[1]: _65 = const ()">        countdown -= 4;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="81:9-81:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
-81:9-81:23: @87[0]: _62 = move (_68.0: i32)
-80:30-82:6: @87[1]: _65 = const ()">    }<span class="annotation">⦉@84,86,87</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code odd" style="--layer: 1" title="82:15-82:24: @85[2]: _70 = _62
-82:15-82:28: @85[3]: _69 = Gt(move _70, const 2_i32)
-82:15-82:28: @85[5]: FakeRead(ForMatchedPlace, _69)"><span class="annotation">@85⦊</span>countdown &gt; 2<span class="annotation">⦉@85</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="83:12-83:21: @90[5]: _75 = _62
-83:12-83:25: @90[6]: _74 = Lt(move _75, const 1_i32)"><span class="annotation">@88,90⦊</span>countdown &lt; 1<span class="annotation">⦉@88,90</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="83:29-83:38: @97[2]: _77 = _62
-83:29-83:42: @97[3]: _76 = Gt(move _77, const 5_i32)"><span class="annotation">@97⦊</span>countdown &gt; 5<span class="annotation">⦉@97</span></span></span><span><span class="code even" style="--layer: 1" title="83:42-83:42: @95.Goto: goto -&gt; bb98"><span class="annotation">@95⦊</span>‸<span class="annotation">⦉@95</span></span></span><span><span class="code odd" style="--layer: 1" title="83:42-83:42: @96.Goto: goto -&gt; bb98"><span class="annotation">@96⦊</span>‸<span class="annotation">⦉@96</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="83:46-83:55: @93[2]: _79 = _62
-83:46-83:60: @93[3]: _78 = Ne(move _79, const 9_i32)"><span class="annotation">@93⦊</span>countdown != 9<span class="annotation">⦉@93</span></span></span><span><span class="code odd" style="--layer: 1" title="83:60-83:60: @91.Goto: goto -&gt; bb94"><span class="annotation">@91⦊</span>‸<span class="annotation">⦉@91</span></span></span><span><span class="code even" style="--layer: 1" title="83:60-83:60: @92.Goto: goto -&gt; bb94"><span class="annotation">@92⦊</span>‸<span class="annotation">⦉@92</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="84:13-84:26: @101[0]: _62 = const 0_i32
-83:61-85:10: @101[1]: _71 = const ()
-85:10-85:10: @101.Goto: goto -&gt; bb102"><span class="annotation">@99,101⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="84:13-84:26: @101[0]: _62 = const 0_i32
-83:61-85:10: @101[1]: _71 = const ()
-85:10-85:10: @101.Goto: goto -&gt; bb102">            countdown = 0;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="84:13-84:26: @101[0]: _62 = const 0_i32
-83:61-85:10: @101[1]: _71 = const ()
-85:10-85:10: @101.Goto: goto -&gt; bb102">        }<span class="annotation">⦉@99,101</span></span></span><span><span class="code even" style="--layer: 1" title="85:10-85:10: @100.Goto: goto -&gt; bb102"><span class="annotation">@100⦊</span>‸<span class="annotation">⦉@100</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="86:9-86:23: @102[2]: _80 = CheckedSub(_62, const 5_i32)
-86:9-86:23: @103[0]: _62 = move (_80.0: i32)"><span class="annotation">@102,103⦊</span>countdown -= 5<span class="annotation">⦉@102,103</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="88:35-88:44: @89[1]: _82 = _62
-88:13-88:32: @89[2]: FakeRead(ForLet, _82)
-89:18-89:27: @89[9]: _113 = const main::promoted[1]
-89:18-89:27: @89[10]: _88 = &amp;(*_113)
-89:18-89:27: @89[11]: _87 = &amp;(*_88)
-89:18-89:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
-89:9-89:29: @89[18]: _94 = ()
-89:9-89:29: @89[19]: FakeRead(ForMatchedPlace, _94)
-89:9-89:29: @89[20]: _112 = const main::promoted[0]
-89:9-89:29: @89[21]: _92 = &amp;(*_112)
-89:9-89:29: @89[22]: _91 = &amp;(*_92)
-89:9-89:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-89:9-89:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
-89:9-89:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
-89:9-89:29: @105[5]: _83 = const ()
-90:9-90:15: @105[7]: _0 = const ()"><span class="annotation">@89,104,105⦊</span>should_be_reachable = countdown;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="88:35-88:44: @89[1]: _82 = _62
-88:13-88:32: @89[2]: FakeRead(ForLet, _82)
-89:18-89:27: @89[9]: _113 = const main::promoted[1]
-89:18-89:27: @89[10]: _88 = &amp;(*_113)
-89:18-89:27: @89[11]: _87 = &amp;(*_88)
-89:18-89:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
-89:9-89:29: @89[18]: _94 = ()
-89:9-89:29: @89[19]: FakeRead(ForMatchedPlace, _94)
-89:9-89:29: @89[20]: _112 = const main::promoted[0]
-89:9-89:29: @89[21]: _92 = &amp;(*_112)
-89:9-89:29: @89[22]: _91 = &amp;(*_92)
-89:9-89:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-89:9-89:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
-89:9-89:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
-89:9-89:29: @105[5]: _83 = const ()
-90:9-90:15: @105[7]: _0 = const ()">        println!("reached");</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="88:35-88:44: @89[1]: _82 = _62
-88:13-88:32: @89[2]: FakeRead(ForLet, _82)
-89:18-89:27: @89[9]: _113 = const main::promoted[1]
-89:18-89:27: @89[10]: _88 = &amp;(*_113)
-89:18-89:27: @89[11]: _87 = &amp;(*_88)
-89:18-89:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
-89:9-89:29: @89[18]: _94 = ()
-89:9-89:29: @89[19]: FakeRead(ForMatchedPlace, _94)
-89:9-89:29: @89[20]: _112 = const main::promoted[0]
-89:9-89:29: @89[21]: _92 = &amp;(*_112)
-89:9-89:29: @89[22]: _91 = &amp;(*_92)
-89:9-89:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-89:9-89:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
-89:9-89:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
-89:9-89:29: @105[5]: _83 = const ()
-90:9-90:15: @105[7]: _0 = const ()">        return<span class="annotation">⦉@89,104,105</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    };</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="93:9-93:10: @127[0]: FakeRead(ForLet, _95)"><span class="annotation">@127⦊</span>w<span class="annotation">⦉@127</span></span></span><span class="code" style="--layer: 0"> = if </span><span><span class="code even" style="--layer: 1" title="93:16-93:25: @106[5]: _97 = _62
-93:16-93:29: @106[6]: _96 = Gt(move _97, const 7_i32)
-93:16-93:29: @106[8]: FakeRead(ForMatchedPlace, _96)"><span class="annotation">@106⦊</span>countdown &gt; 7<span class="annotation">⦉@106</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="94:9-94:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
-94:9-94:23: @110[0]: _62 = move (_98.0: i32)
-93:30-95:6: @110[1]: _95 = const ()"><span class="annotation">@107,109,110⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="94:9-94:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
-94:9-94:23: @110[0]: _62 = move (_98.0: i32)
-93:30-95:6: @110[1]: _95 = const ()">        countdown -= 4;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="94:9-94:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
-94:9-94:23: @110[0]: _62 = move (_98.0: i32)
-93:30-95:6: @110[1]: _95 = const ()">    }<span class="annotation">⦉@107,109,110</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code even" style="--layer: 1" title="95:15-95:24: @108[2]: _100 = _62
-95:15-95:28: @108[3]: _99 = Gt(move _100, const 2_i32)
-95:15-95:28: @108[5]: FakeRead(ForMatchedPlace, _99)"><span class="annotation">@108⦊</span>countdown &gt; 2<span class="annotation">⦉@108</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="96:12-96:21: @113[5]: _105 = _62
-96:12-96:25: @113[6]: _104 = Lt(move _105, const 1_i32)"><span class="annotation">@111,113⦊</span>countdown &lt; 1<span class="annotation">⦉@111,113</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="96:29-96:38: @120[2]: _107 = _62
-96:29-96:42: @120[3]: _106 = Gt(move _107, const 5_i32)"><span class="annotation">@120⦊</span>countdown &gt; 5<span class="annotation">⦉@120</span></span></span><span><span class="code odd" style="--layer: 1" title="96:42-96:42: @118.Goto: goto -&gt; bb121"><span class="annotation">@118⦊</span>‸<span class="annotation">⦉@118</span></span></span><span><span class="code even" style="--layer: 1" title="96:42-96:42: @119.Goto: goto -&gt; bb121"><span class="annotation">@119⦊</span>‸<span class="annotation">⦉@119</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="96:46-96:55: @116[2]: _109 = _62
-96:46-96:60: @116[3]: _108 = Ne(move _109, const 9_i32)"><span class="annotation">@116⦊</span>countdown != 9<span class="annotation">⦉@116</span></span></span><span><span class="code even" style="--layer: 1" title="96:60-96:60: @114.Goto: goto -&gt; bb117"><span class="annotation">@114⦊</span>‸<span class="annotation">⦉@114</span></span></span><span><span class="code odd" style="--layer: 1" title="96:60-96:60: @115.Goto: goto -&gt; bb117"><span class="annotation">@115⦊</span>‸<span class="annotation">⦉@115</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="97:13-97:26: @124[0]: _62 = const 0_i32
-96:61-98:10: @124[1]: _101 = const ()
-98:10-98:10: @124.Goto: goto -&gt; bb125"><span class="annotation">@122,124⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="97:13-97:26: @124[0]: _62 = const 0_i32
-96:61-98:10: @124[1]: _101 = const ()
-98:10-98:10: @124.Goto: goto -&gt; bb125">            countdown = 0;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="97:13-97:26: @124[0]: _62 = const 0_i32
-96:61-98:10: @124[1]: _101 = const ()
-98:10-98:10: @124.Goto: goto -&gt; bb125">        }<span class="annotation">⦉@122,124</span></span></span><span><span class="code odd" style="--layer: 1" title="98:10-98:10: @123.Goto: goto -&gt; bb125"><span class="annotation">@123⦊</span>‸<span class="annotation">⦉@123</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="99:9-99:23: @125[2]: _110 = CheckedSub(_62, const 5_i32)
-99:9-99:23: @126[0]: _62 = move (_110.0: i32)"><span class="annotation">@125,126⦊</span>countdown -= 5<span class="annotation">⦉@125,126</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="101:9-101:15: @112[0]: _0 = const ()"><span class="annotation">@112⦊</span>return<span class="annotation">⦉@112</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    };</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="103:2-103:2: @130.Goto: goto -&gt; bb131"><span class="annotation">@130⦊</span>‸<span class="annotation">⦉@130</span></span></span><span><span class="code odd" style="--layer: 1" title="103:2-103:2: @131.Return: return"><span class="annotation">@131⦊</span>‸<span class="annotation">⦉@131</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.drop_trait/drop_trait.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.drop_trait/drop_trait.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 8d6f936aadcbc..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.drop_trait/drop_trait.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,129 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>drop_trait.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 13"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
-15:9-15:21: @0[2]: FakeRead(ForLet, _1)
-17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
-17:9-17:13: @0[5]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>_firecracker = Firework { strength: 1 };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
-15:9-15:21: @0[2]: FakeRead(ForLet, _1)
-17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
-17:9-17:13: @0[5]: FakeRead(ForLet, _2)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
-15:9-15:21: @0[2]: FakeRead(ForLet, _1)
-17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
-17:9-17:13: @0[5]: FakeRead(ForLet, _2)">    let _tnt = Firework { strength: 100 }<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="19:8-19:12: @0[8]: _4 = const true
-19:8-19:12: @0[9]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="20:18-20:41: @3[6]: _21 = const main::promoted[1]
-20:18-20:41: @3[7]: _11 = &amp;(*_21)
-20:18-20:41: @3[8]: _10 = &amp;(*_11)
-20:18-20:41: @3[9]: _9 = move _10 as &amp;[&amp;str] (Pointer(Unsize))
-20:9-20:43: @3[15]: _17 = ()
-20:9-20:43: @3[16]: FakeRead(ForMatchedPlace, _17)
-20:9-20:43: @3[17]: _20 = const main::promoted[0]
-20:9-20:43: @3[18]: _15 = &amp;(*_20)
-20:9-20:43: @3[19]: _14 = &amp;(*_15)
-20:9-20:43: @3[20]: _13 = move _14 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-20:9-20:43: @3.Call: _8 = Arguments::new_v1(move _9, move _13) -&gt; [return: bb4, unwind: bb12]
-20:9-20:43: @4.Call: _7 = _print(move _8) -&gt; [return: bb5, unwind: bb12]
-20:9-20:43: @5[5]: _6 = const ()
-21:16-21:22: @5[7]: _0 = std::result::Result::&lt;(), u8&gt;::Err(const 1_u8)"><span class="annotation">@1,3,4,5,9,10⦊</span>println!("Exiting with error...");</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="20:18-20:41: @3[6]: _21 = const main::promoted[1]
-20:18-20:41: @3[7]: _11 = &amp;(*_21)
-20:18-20:41: @3[8]: _10 = &amp;(*_11)
-20:18-20:41: @3[9]: _9 = move _10 as &amp;[&amp;str] (Pointer(Unsize))
-20:9-20:43: @3[15]: _17 = ()
-20:9-20:43: @3[16]: FakeRead(ForMatchedPlace, _17)
-20:9-20:43: @3[17]: _20 = const main::promoted[0]
-20:9-20:43: @3[18]: _15 = &amp;(*_20)
-20:9-20:43: @3[19]: _14 = &amp;(*_15)
-20:9-20:43: @3[20]: _13 = move _14 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-20:9-20:43: @3.Call: _8 = Arguments::new_v1(move _9, move _13) -&gt; [return: bb4, unwind: bb12]
-20:9-20:43: @4.Call: _7 = _print(move _8) -&gt; [return: bb5, unwind: bb12]
-20:9-20:43: @5[5]: _6 = const ()
-21:16-21:22: @5[7]: _0 = std::result::Result::&lt;(), u8&gt;::Err(const 1_u8)">        return Err(1)<span class="annotation">⦉@1,3,4,5,9,10</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let _ = </span><span><span class="code even" style="--layer: 1" title="24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
-26:8-26:10: @6[2]: _19 = ()
-26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)"><span class="annotation">@2,6,7,8⦊</span>Firework { strength: 1000 };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
-26:8-26:10: @6[2]: _19 = ()
-26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
-26:8-26:10: @6[2]: _19 = ()
-26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)">    Ok(())<span class="annotation">⦉@2,6,7,8</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="27:2-27:2: @11.Return: return"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.drop_trait/drop_trait.{impl#0}-drop.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.drop_trait/drop_trait.{impl#0}-drop.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 60a24df9ba6b0..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.drop_trait/drop_trait.{impl#0}-drop.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,133 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.%7Bimpl%230%7D-drop.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>drop_trait.{impl#0}-drop - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 8"><span class="line">    <span class="code" style="--layer: 0">fn drop(&amp;mut self) </span><span><span class="code even" style="--layer: 1" title="10:18-10:36: @0[6]: _19 = const &lt;Firework as Drop&gt;::drop::promoted[0]
-10:18-10:36: @0[7]: _7 = &amp;(*_19)
-10:18-10:36: @0[8]: _6 = &amp;(*_7)
-10:18-10:36: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-10:38-10:51: @0[17]: _14 = &amp;((*_1).0: i32)
-10:9-10:53: @0[18]: _13 = (move _14,)
-10:9-10:53: @0[20]: FakeRead(ForMatchedPlace, _13)
-10:9-10:53: @0[22]: _15 = (_13.0: &amp;i32)
-10:9-10:53: @0[25]: _17 = &amp;(*_15)
-10:9-10:53: @0[27]: _18 = &lt;i32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r i32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-10:9-10:53: @0.Call: _16 = ArgumentV1::new::&lt;i32&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-10:9-10:53: @1[2]: _12 = [move _16]
-10:9-10:53: @1[5]: _11 = &amp;_12
-10:9-10:53: @1[6]: _10 = &amp;(*_11)
-10:9-10:53: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-10:9-10:53: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-10:9-10:53: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-10:9-10:53: @3[6]: _2 = const ()
-9:24-11:6: @3[8]: _0 = const ()
-11:6-11:6: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:18-10:36: @0[6]: _19 = const &lt;Firework as Drop&gt;::drop::promoted[0]
-10:18-10:36: @0[7]: _7 = &amp;(*_19)
-10:18-10:36: @0[8]: _6 = &amp;(*_7)
-10:18-10:36: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-10:38-10:51: @0[17]: _14 = &amp;((*_1).0: i32)
-10:9-10:53: @0[18]: _13 = (move _14,)
-10:9-10:53: @0[20]: FakeRead(ForMatchedPlace, _13)
-10:9-10:53: @0[22]: _15 = (_13.0: &amp;i32)
-10:9-10:53: @0[25]: _17 = &amp;(*_15)
-10:9-10:53: @0[27]: _18 = &lt;i32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r i32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-10:9-10:53: @0.Call: _16 = ArgumentV1::new::&lt;i32&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-10:9-10:53: @1[2]: _12 = [move _16]
-10:9-10:53: @1[5]: _11 = &amp;_12
-10:9-10:53: @1[6]: _10 = &amp;(*_11)
-10:9-10:53: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-10:9-10:53: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-10:9-10:53: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-10:9-10:53: @3[6]: _2 = const ()
-9:24-11:6: @3[8]: _0 = const ()
-11:6-11:6: @3.Return: return">        println!("BOOM times {}!!!", self.strength);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:18-10:36: @0[6]: _19 = const &lt;Firework as Drop&gt;::drop::promoted[0]
-10:18-10:36: @0[7]: _7 = &amp;(*_19)
-10:18-10:36: @0[8]: _6 = &amp;(*_7)
-10:18-10:36: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-10:38-10:51: @0[17]: _14 = &amp;((*_1).0: i32)
-10:9-10:53: @0[18]: _13 = (move _14,)
-10:9-10:53: @0[20]: FakeRead(ForMatchedPlace, _13)
-10:9-10:53: @0[22]: _15 = (_13.0: &amp;i32)
-10:9-10:53: @0[25]: _17 = &amp;(*_15)
-10:9-10:53: @0[27]: _18 = &lt;i32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r i32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-10:9-10:53: @0.Call: _16 = ArgumentV1::new::&lt;i32&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-10:9-10:53: @1[2]: _12 = [move _16]
-10:9-10:53: @1[5]: _11 = &amp;_12
-10:9-10:53: @1[6]: _10 = &amp;(*_11)
-10:9-10:53: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-10:9-10:53: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-10:9-10:53: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-10:9-10:53: @3[6]: _2 = const ()
-9:24-11:6: @3[8]: _0 = const ()
-11:6-11:6: @3.Return: return">    }<span class="annotation">⦉@0,1,2,3</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 3f90fd1e8215a..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,177 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>generics.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 21"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
-23:9-23:24: @0[2]: FakeRead(ForLet, _1)
-24:5-24:16: @0[5]: _3 = &amp;mut _1
-24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
-26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
-26:9-26:16: @1[4]: FakeRead(ForLet, _4)
-27:5-27:8: @1[7]: _6 = &amp;mut _4
-27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
-28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]"><span class="annotation">@0,1,2,3⦊</span>mut firecracker = Firework { strength: 1 };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
-23:9-23:24: @0[2]: FakeRead(ForLet, _1)
-24:5-24:16: @0[5]: _3 = &amp;mut _1
-24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
-26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
-26:9-26:16: @1[4]: FakeRead(ForLet, _4)
-27:5-27:8: @1[7]: _6 = &amp;mut _4
-27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
-28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]">    firecracker.set_strength(2);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
-23:9-23:24: @0[2]: FakeRead(ForLet, _1)
-24:5-24:16: @0[5]: _3 = &amp;mut _1
-24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
-26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
-26:9-26:16: @1[4]: FakeRead(ForLet, _4)
-27:5-27:8: @1[7]: _6 = &amp;mut _4
-27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
-28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
-23:9-23:24: @0[2]: FakeRead(ForLet, _1)
-24:5-24:16: @0[5]: _3 = &amp;mut _1
-24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
-26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
-26:9-26:16: @1[4]: FakeRead(ForLet, _4)
-27:5-27:8: @1[7]: _6 = &amp;mut _4
-27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
-28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]">    let mut tnt = Firework { strength: 100.1 };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
-23:9-23:24: @0[2]: FakeRead(ForLet, _1)
-24:5-24:16: @0[5]: _3 = &amp;mut _1
-24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
-26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
-26:9-26:16: @1[4]: FakeRead(ForLet, _4)
-27:5-27:8: @1[7]: _6 = &amp;mut _4
-27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
-28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]">    tnt.set_strength(200.1);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
-23:9-23:24: @0[2]: FakeRead(ForLet, _1)
-24:5-24:16: @0[5]: _3 = &amp;mut _1
-24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
-26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
-26:9-26:16: @1[4]: FakeRead(ForLet, _4)
-27:5-27:8: @1[7]: _6 = &amp;mut _4
-27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
-28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]">    tnt.set_strength(300.3)<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="30:8-30:12: @3[4]: _10 = const true
-30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@0,1,2,3⦊</span>true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="31:18-31:41: @6[6]: _27 = const main::promoted[1]
-31:18-31:41: @6[7]: _17 = &amp;(*_27)
-31:18-31:41: @6[8]: _16 = &amp;(*_17)
-31:18-31:41: @6[9]: _15 = move _16 as &amp;[&amp;str] (Pointer(Unsize))
-31:9-31:43: @6[15]: _23 = ()
-31:9-31:43: @6[16]: FakeRead(ForMatchedPlace, _23)
-31:9-31:43: @6[17]: _26 = const main::promoted[0]
-31:9-31:43: @6[18]: _21 = &amp;(*_26)
-31:9-31:43: @6[19]: _20 = &amp;(*_21)
-31:9-31:43: @6[20]: _19 = move _20 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-31:9-31:43: @6.Call: _14 = Arguments::new_v1(move _15, move _19) -&gt; [return: bb7, unwind: bb15]
-31:9-31:43: @7.Call: _13 = _print(move _14) -&gt; [return: bb8, unwind: bb15]
-31:9-31:43: @8[5]: _12 = const ()
-32:16-32:22: @8[7]: _0 = std::result::Result::&lt;(), u8&gt;::Err(const 1_u8)"><span class="annotation">@4,6,7,8,12,13⦊</span>println!("Exiting with error...");</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:18-31:41: @6[6]: _27 = const main::promoted[1]
-31:18-31:41: @6[7]: _17 = &amp;(*_27)
-31:18-31:41: @6[8]: _16 = &amp;(*_17)
-31:18-31:41: @6[9]: _15 = move _16 as &amp;[&amp;str] (Pointer(Unsize))
-31:9-31:43: @6[15]: _23 = ()
-31:9-31:43: @6[16]: FakeRead(ForMatchedPlace, _23)
-31:9-31:43: @6[17]: _26 = const main::promoted[0]
-31:9-31:43: @6[18]: _21 = &amp;(*_26)
-31:9-31:43: @6[19]: _20 = &amp;(*_21)
-31:9-31:43: @6[20]: _19 = move _20 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-31:9-31:43: @6.Call: _14 = Arguments::new_v1(move _15, move _19) -&gt; [return: bb7, unwind: bb15]
-31:9-31:43: @7.Call: _13 = _print(move _14) -&gt; [return: bb8, unwind: bb15]
-31:9-31:43: @8[5]: _12 = const ()
-32:16-32:22: @8[7]: _0 = std::result::Result::&lt;(), u8&gt;::Err(const 1_u8)">        return Err(1)<span class="annotation">⦉@4,6,7,8,12,13</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let _ = </span><span><span class="code even" style="--layer: 1" title="35:13-35:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
-37:8-37:10: @9[2]: _25 = ()
-37:5-37:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)"><span class="annotation">@5,9,10,11⦊</span>Firework { strength: 1000 };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="35:13-35:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
-37:8-37:10: @9[2]: _25 = ()
-37:5-37:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="35:13-35:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
-37:8-37:10: @9[2]: _25 = ()
-37:5-37:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)">    Ok(())<span class="annotation">⦉@5,9,10,11</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="38:2-38:2: @14.Return: return"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.{impl#0}-set_strength.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.{impl#0}-set_strength.-------.InstrumentCoverage.0.html
deleted file mode 100644
index b10da561da91d..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.{impl#0}-set_strength.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,85 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.%7Bimpl%230%7D-set_strength.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>generics.{impl#0}-set_strength - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 9"><span class="line">    <span class="code" style="--layer: 0">fn set_strength(&amp;mut self, new_strength: T) </span><span><span class="code even" style="--layer: 1" title="11:25-11:37: @0[1]: _3 = _2
-11:9-11:37: @0[2]: ((*_1).0: T) = move _3
-10:49-12:6: @0[4]: _0 = const ()
-12:6-12:6: @0.Return: return"><span class="annotation">@0⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="11:25-11:37: @0[1]: _3 = _2
-11:9-11:37: @0[2]: ((*_1).0: T) = move _3
-10:49-12:6: @0[4]: _0 = const ()
-12:6-12:6: @0.Return: return">        self.strength = new_strength;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="11:25-11:37: @0[1]: _3 = _2
-11:9-11:37: @0[2]: ((*_1).0: T) = move _3
-10:49-12:6: @0[4]: _0 = const ()
-12:6-12:6: @0.Return: return">    }<span class="annotation">⦉@0</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.{impl#1}-drop.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.{impl#1}-drop.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 0515e8d7b8cb4..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.generics/generics.{impl#1}-drop.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,133 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.%7Bimpl%231%7D-drop.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>generics.{impl#1}-drop - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 16"><span class="line">    <span class="code" style="--layer: 0">fn drop(&amp;mut self) </span><span><span class="code even" style="--layer: 1" title="18:18-18:36: @0[6]: _19 = const &lt;Firework&lt;T&gt; as Drop&gt;::drop::promoted[0]
-18:18-18:36: @0[7]: _7 = &amp;(*_19)
-18:18-18:36: @0[8]: _6 = &amp;(*_7)
-18:18-18:36: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-18:38-18:51: @0[17]: _14 = &amp;((*_1).0: T)
-18:9-18:53: @0[18]: _13 = (move _14,)
-18:9-18:53: @0[20]: FakeRead(ForMatchedPlace, _13)
-18:9-18:53: @0[22]: _15 = (_13.0: &amp;T)
-18:9-18:53: @0[25]: _17 = &amp;(*_15)
-18:9-18:53: @0[27]: _18 = &lt;T as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r T, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-18:9-18:53: @0.Call: _16 = ArgumentV1::new::&lt;T&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-18:9-18:53: @1[2]: _12 = [move _16]
-18:9-18:53: @1[5]: _11 = &amp;_12
-18:9-18:53: @1[6]: _10 = &amp;(*_11)
-18:9-18:53: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-18:9-18:53: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-18:9-18:53: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-18:9-18:53: @3[6]: _2 = const ()
-17:24-19:6: @3[8]: _0 = const ()
-19:6-19:6: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="18:18-18:36: @0[6]: _19 = const &lt;Firework&lt;T&gt; as Drop&gt;::drop::promoted[0]
-18:18-18:36: @0[7]: _7 = &amp;(*_19)
-18:18-18:36: @0[8]: _6 = &amp;(*_7)
-18:18-18:36: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-18:38-18:51: @0[17]: _14 = &amp;((*_1).0: T)
-18:9-18:53: @0[18]: _13 = (move _14,)
-18:9-18:53: @0[20]: FakeRead(ForMatchedPlace, _13)
-18:9-18:53: @0[22]: _15 = (_13.0: &amp;T)
-18:9-18:53: @0[25]: _17 = &amp;(*_15)
-18:9-18:53: @0[27]: _18 = &lt;T as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r T, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-18:9-18:53: @0.Call: _16 = ArgumentV1::new::&lt;T&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-18:9-18:53: @1[2]: _12 = [move _16]
-18:9-18:53: @1[5]: _11 = &amp;_12
-18:9-18:53: @1[6]: _10 = &amp;(*_11)
-18:9-18:53: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-18:9-18:53: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-18:9-18:53: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-18:9-18:53: @3[6]: _2 = const ()
-17:24-19:6: @3[8]: _0 = const ()
-19:6-19:6: @3.Return: return">        println!("BOOM times {}!!!", self.strength);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="18:18-18:36: @0[6]: _19 = const &lt;Firework&lt;T&gt; as Drop&gt;::drop::promoted[0]
-18:18-18:36: @0[7]: _7 = &amp;(*_19)
-18:18-18:36: @0[8]: _6 = &amp;(*_7)
-18:18-18:36: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-18:38-18:51: @0[17]: _14 = &amp;((*_1).0: T)
-18:9-18:53: @0[18]: _13 = (move _14,)
-18:9-18:53: @0[20]: FakeRead(ForMatchedPlace, _13)
-18:9-18:53: @0[22]: _15 = (_13.0: &amp;T)
-18:9-18:53: @0[25]: _17 = &amp;(*_15)
-18:9-18:53: @0[27]: _18 = &lt;T as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r T, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-18:9-18:53: @0.Call: _16 = ArgumentV1::new::&lt;T&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-18:9-18:53: @1[2]: _12 = [move _16]
-18:9-18:53: @1[5]: _11 = &amp;_12
-18:9-18:53: @1[6]: _10 = &amp;(*_11)
-18:9-18:53: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-18:9-18:53: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-18:9-18:53: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-18:9-18:53: @3[6]: _2 = const ()
-17:24-19:6: @3[8]: _0 = const ()
-19:6-19:6: @3.Return: return">    }<span class="annotation">⦉@0,1,2,3</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.if/if.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.if/if.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index e926079a42897..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.if/if.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,178 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if/if.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>if.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">        std::env::args().len()</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    ==</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">        1</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    ;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    let</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">        mut</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    countdown</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
-10:9-10:25: @1[0]: _3 = &amp;_4
-10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
-10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
-8:5-8:12: @2[3]: FakeRead(ForLet, _1)
-18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">        0<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="21:9-21:16: @3[5]: _6 = _1
-21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">        countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">        =</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">            10</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">        ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="27:6-27:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="28:2-28:2: @7.Return: return"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.if_else/if_else.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.if_else/if_else.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 586014afebaf7..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.if_else/if_else.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,173 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if_else/if_else.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>if_else.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)
-11:9-11:16: @3[6]: _7 = _1
-11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)
-11:9-11:16: @3[6]: _7 = _1
-11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)
-11:9-11:16: @3[6]: _7 = _1
-11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    let mut countdown = 0;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)
-11:9-11:16: @3[6]: _7 = _1
-11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    if</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)
-11:9-11:16: @3[6]: _7 = _1
-11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)">        is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="13:9-15:15: @6[0]: _5 = const 10_i32
-12:5-17:6: @6[1]: _6 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="13:9-15:15: @6[0]: _5 = const 10_i32
-12:5-17:6: @6[1]: _6 = const ()">        countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="13:9-15:15: @6[0]: _5 = const 10_i32
-12:5-17:6: @6[1]: _6 = const ()">        =</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="13:9-15:15: @6[0]: _5 = const 10_i32
-12:5-17:6: @6[1]: _6 = const ()">            10</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="13:9-15:15: @6[0]: _5 = const 10_i32
-12:5-17:6: @6[1]: _6 = const ()">        ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="13:9-15:15: @6[0]: _5 = const 10_i32
-12:5-17:6: @6[1]: _6 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    else // Note coverage region difference without semicolon</span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="20:9-22:16: @5[0]: _5 = const 100_i32
-20:9-22:16: @5[1]: _6 = const ()"><span class="annotation">@5⦊</span>countdown</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="20:9-22:16: @5[0]: _5 = const 100_i32
-20:9-22:16: @5[1]: _6 = const ()">        =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="20:9-22:16: @5[0]: _5 = const 100_i32
-20:9-22:16: @5[1]: _6 = const ()">            100<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="26:9-26:16: @7[3]: _8 = _1
-26:9-26:16: @7[4]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@7⦊</span>is_true<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="28:9-30:15: @10[0]: _5 = const 10_i32
-27:5-32:6: @10[1]: _0 = const ()"><span class="annotation">@8,10⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="28:9-30:15: @10[0]: _5 = const 10_i32
-27:5-32:6: @10[1]: _0 = const ()">        countdown</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="28:9-30:15: @10[0]: _5 = const 10_i32
-27:5-32:6: @10[1]: _0 = const ()">        =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="28:9-30:15: @10[0]: _5 = const 10_i32
-27:5-32:6: @10[1]: _0 = const ()">            10</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="28:9-30:15: @10[0]: _5 = const 10_i32
-27:5-32:6: @10[1]: _0 = const ()">        ;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="28:9-30:15: @10[0]: _5 = const 10_i32
-27:5-32:6: @10[1]: _0 = const ()">    }<span class="annotation">⦉@8,10</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    else</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="35:9-37:16: @9[0]: _5 = const 100_i32
-34:5-39:6: @9[1]: _0 = const ()"><span class="annotation">@9⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="35:9-37:16: @9[0]: _5 = const 100_i32
-34:5-39:6: @9[1]: _0 = const ()">        countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="35:9-37:16: @9[0]: _5 = const 100_i32
-34:5-39:6: @9[1]: _0 = const ()">        =</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="35:9-37:16: @9[0]: _5 = const 100_i32
-34:5-39:6: @9[1]: _0 = const ()">            100</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="35:9-37:16: @9[0]: _5 = const 100_i32
-34:5-39:6: @9[1]: _0 = const ()">        ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="35:9-37:16: @9[0]: _5 = const 100_i32
-34:5-39:6: @9[1]: _0 = const ()">    }<span class="annotation">⦉@9</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="40:2-40:2: @11.Return: return"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-InTrait-default_trait_func.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-InTrait-default_trait_func.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 387f2ba4e4139..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-InTrait-default_trait_func.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,93 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-InTrait-default_trait_func.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>inner_items.main-InTrait-default_trait_func - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 32"><span class="line">        <span class="code" style="--layer: 0">fn default_trait_func(&amp;mut self) </span><span><span class="code even" style="--layer: 1" title="34:13-34:30: @0.Call: _2 = in_func(const IN_CONST) -&gt; [return: bb1, unwind: bb3]
-35:13-35:17: @1[3]: _4 = &amp;mut (*_1)
-35:13-35:38: @1.Call: _3 = &lt;Self as InTrait&gt;::trait_func(move _4, const IN_CONST) -&gt; [return: bb2, unwind: bb3]
-33:42-36:10: @2[2]: _0 = const ()
-36:10-36:10: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="34:13-34:30: @0.Call: _2 = in_func(const IN_CONST) -&gt; [return: bb1, unwind: bb3]
-35:13-35:17: @1[3]: _4 = &amp;mut (*_1)
-35:13-35:38: @1.Call: _3 = &lt;Self as InTrait&gt;::trait_func(move _4, const IN_CONST) -&gt; [return: bb2, unwind: bb3]
-33:42-36:10: @2[2]: _0 = const ()
-36:10-36:10: @2.Return: return">            in_func(IN_CONST);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="34:13-34:30: @0.Call: _2 = in_func(const IN_CONST) -&gt; [return: bb1, unwind: bb3]
-35:13-35:17: @1[3]: _4 = &amp;mut (*_1)
-35:13-35:38: @1.Call: _3 = &lt;Self as InTrait&gt;::trait_func(move _4, const IN_CONST) -&gt; [return: bb2, unwind: bb3]
-33:42-36:10: @2[2]: _0 = const ()
-36:10-36:10: @2.Return: return">            self.trait_func(IN_CONST);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="34:13-34:30: @0.Call: _2 = in_func(const IN_CONST) -&gt; [return: bb1, unwind: bb3]
-35:13-35:17: @1[3]: _4 = &amp;mut (*_1)
-35:13-35:38: @1.Call: _3 = &lt;Self as InTrait&gt;::trait_func(move _4, const IN_CONST) -&gt; [return: bb2, unwind: bb3]
-33:42-36:10: @2[2]: _0 = const ()
-36:10-36:10: @2.Return: return">        }<span class="annotation">⦉@0,1,2</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-in_func.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-in_func.-------.InstrumentCoverage.0.html
deleted file mode 100644
index cec099a0ef529..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-in_func.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,178 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-in_func.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>inner_items.main-in_func - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 17"><span class="line">    <span class="code" style="--layer: 0">fn in_func(a: u32) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="19:17-19:18: @0[1]: _2 = const 1_u32
-19:13-19:14: @0[2]: FakeRead(ForLet, _2)
-20:17-20:18: @0[5]: _4 = _1
-20:21-20:22: @0[7]: _5 = _2
-20:17-20:22: @0[8]: _6 = CheckedAdd(_4, _5)
-20:17-20:22: @1[0]: _3 = move (_6.0: u32)
-20:13-20:14: @1[3]: FakeRead(ForLet, _3)
-21:18-21:26: @1[9]: _23 = const in_func::promoted[0]
-21:18-21:26: @1[10]: _11 = &amp;(*_23)
-21:18-21:26: @1[11]: _10 = &amp;(*_11)
-21:18-21:26: @1[12]: _9 = move _10 as &amp;[&amp;str] (Pointer(Unsize))
-21:28-21:29: @1[20]: _18 = &amp;_3
-21:9-21:30: @1[21]: _17 = (move _18,)
-21:9-21:30: @1[23]: FakeRead(ForMatchedPlace, _17)
-21:9-21:30: @1[25]: _19 = (_17.0: &amp;u32)
-21:9-21:30: @1[28]: _21 = &amp;(*_19)
-21:9-21:30: @1[30]: _22 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-21:9-21:30: @1.Call: _20 = ArgumentV1::new::&lt;u32&gt;(move _21, move _22) -&gt; [return: bb2, unwind: bb5]
-21:9-21:30: @2[2]: _16 = [move _20]
-21:9-21:30: @2[5]: _15 = &amp;_16
-21:9-21:30: @2[6]: _14 = &amp;(*_15)
-21:9-21:30: @2[7]: _13 = move _14 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-21:9-21:30: @2.Call: _8 = Arguments::new_v1(move _9, move _13) -&gt; [return: bb3, unwind: bb5]
-21:9-21:30: @3.Call: _7 = _print(move _8) -&gt; [return: bb4, unwind: bb5]
-21:9-21:30: @4[6]: _0 = const ()
-22:6-22:6: @4.Return: return"><span class="annotation">@0,1,2,3,4⦊</span>b = 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:17-19:18: @0[1]: _2 = const 1_u32
-19:13-19:14: @0[2]: FakeRead(ForLet, _2)
-20:17-20:18: @0[5]: _4 = _1
-20:21-20:22: @0[7]: _5 = _2
-20:17-20:22: @0[8]: _6 = CheckedAdd(_4, _5)
-20:17-20:22: @1[0]: _3 = move (_6.0: u32)
-20:13-20:14: @1[3]: FakeRead(ForLet, _3)
-21:18-21:26: @1[9]: _23 = const in_func::promoted[0]
-21:18-21:26: @1[10]: _11 = &amp;(*_23)
-21:18-21:26: @1[11]: _10 = &amp;(*_11)
-21:18-21:26: @1[12]: _9 = move _10 as &amp;[&amp;str] (Pointer(Unsize))
-21:28-21:29: @1[20]: _18 = &amp;_3
-21:9-21:30: @1[21]: _17 = (move _18,)
-21:9-21:30: @1[23]: FakeRead(ForMatchedPlace, _17)
-21:9-21:30: @1[25]: _19 = (_17.0: &amp;u32)
-21:9-21:30: @1[28]: _21 = &amp;(*_19)
-21:9-21:30: @1[30]: _22 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-21:9-21:30: @1.Call: _20 = ArgumentV1::new::&lt;u32&gt;(move _21, move _22) -&gt; [return: bb2, unwind: bb5]
-21:9-21:30: @2[2]: _16 = [move _20]
-21:9-21:30: @2[5]: _15 = &amp;_16
-21:9-21:30: @2[6]: _14 = &amp;(*_15)
-21:9-21:30: @2[7]: _13 = move _14 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-21:9-21:30: @2.Call: _8 = Arguments::new_v1(move _9, move _13) -&gt; [return: bb3, unwind: bb5]
-21:9-21:30: @3.Call: _7 = _print(move _8) -&gt; [return: bb4, unwind: bb5]
-21:9-21:30: @4[6]: _0 = const ()
-22:6-22:6: @4.Return: return">        let c = a + b;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:17-19:18: @0[1]: _2 = const 1_u32
-19:13-19:14: @0[2]: FakeRead(ForLet, _2)
-20:17-20:18: @0[5]: _4 = _1
-20:21-20:22: @0[7]: _5 = _2
-20:17-20:22: @0[8]: _6 = CheckedAdd(_4, _5)
-20:17-20:22: @1[0]: _3 = move (_6.0: u32)
-20:13-20:14: @1[3]: FakeRead(ForLet, _3)
-21:18-21:26: @1[9]: _23 = const in_func::promoted[0]
-21:18-21:26: @1[10]: _11 = &amp;(*_23)
-21:18-21:26: @1[11]: _10 = &amp;(*_11)
-21:18-21:26: @1[12]: _9 = move _10 as &amp;[&amp;str] (Pointer(Unsize))
-21:28-21:29: @1[20]: _18 = &amp;_3
-21:9-21:30: @1[21]: _17 = (move _18,)
-21:9-21:30: @1[23]: FakeRead(ForMatchedPlace, _17)
-21:9-21:30: @1[25]: _19 = (_17.0: &amp;u32)
-21:9-21:30: @1[28]: _21 = &amp;(*_19)
-21:9-21:30: @1[30]: _22 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-21:9-21:30: @1.Call: _20 = ArgumentV1::new::&lt;u32&gt;(move _21, move _22) -&gt; [return: bb2, unwind: bb5]
-21:9-21:30: @2[2]: _16 = [move _20]
-21:9-21:30: @2[5]: _15 = &amp;_16
-21:9-21:30: @2[6]: _14 = &amp;(*_15)
-21:9-21:30: @2[7]: _13 = move _14 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-21:9-21:30: @2.Call: _8 = Arguments::new_v1(move _9, move _13) -&gt; [return: bb3, unwind: bb5]
-21:9-21:30: @3.Call: _7 = _print(move _8) -&gt; [return: bb4, unwind: bb5]
-21:9-21:30: @4[6]: _0 = const ()
-22:6-22:6: @4.Return: return">        println!("c = {}", c)</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:17-19:18: @0[1]: _2 = const 1_u32
-19:13-19:14: @0[2]: FakeRead(ForLet, _2)
-20:17-20:18: @0[5]: _4 = _1
-20:21-20:22: @0[7]: _5 = _2
-20:17-20:22: @0[8]: _6 = CheckedAdd(_4, _5)
-20:17-20:22: @1[0]: _3 = move (_6.0: u32)
-20:13-20:14: @1[3]: FakeRead(ForLet, _3)
-21:18-21:26: @1[9]: _23 = const in_func::promoted[0]
-21:18-21:26: @1[10]: _11 = &amp;(*_23)
-21:18-21:26: @1[11]: _10 = &amp;(*_11)
-21:18-21:26: @1[12]: _9 = move _10 as &amp;[&amp;str] (Pointer(Unsize))
-21:28-21:29: @1[20]: _18 = &amp;_3
-21:9-21:30: @1[21]: _17 = (move _18,)
-21:9-21:30: @1[23]: FakeRead(ForMatchedPlace, _17)
-21:9-21:30: @1[25]: _19 = (_17.0: &amp;u32)
-21:9-21:30: @1[28]: _21 = &amp;(*_19)
-21:9-21:30: @1[30]: _22 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-21:9-21:30: @1.Call: _20 = ArgumentV1::new::&lt;u32&gt;(move _21, move _22) -&gt; [return: bb2, unwind: bb5]
-21:9-21:30: @2[2]: _16 = [move _20]
-21:9-21:30: @2[5]: _15 = &amp;_16
-21:9-21:30: @2[6]: _14 = &amp;(*_15)
-21:9-21:30: @2[7]: _13 = move _14 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-21:9-21:30: @2.Call: _8 = Arguments::new_v1(move _9, move _13) -&gt; [return: bb3, unwind: bb5]
-21:9-21:30: @3.Call: _7 = _print(move _8) -&gt; [return: bb4, unwind: bb5]
-21:9-21:30: @4[6]: _0 = const ()
-22:6-22:6: @4.Return: return">    }<span class="annotation">⦉@0,1,2,3,4</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-{impl#0}-trait_func.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-{impl#0}-trait_func.-------.InstrumentCoverage.0.html
deleted file mode 100644
index eaecb183ca110..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main-{impl#0}-trait_func.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,101 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-%7Bimpl%230%7D-trait_func.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>inner_items.main-{impl#0}-trait_func - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 39"><span class="line">        <span class="code" style="--layer: 0">fn trait_func(&amp;mut self, incr: u32) </span><span><span class="code even" style="--layer: 1" title="41:37-41:41: @0[1]: _3 = _2
-41:13-41:41: @0[2]: _4 = CheckedAdd(((*_1).0: u32), _3)
-41:13-41:41: @1[0]: ((*_1).0: u32) = move (_4.0: u32)
-42:21-42:41: @1[4]: _6 = ((*_1).0: u32)
-42:13-42:42: @1.Call: _5 = in_func(move _6) -&gt; [return: bb2, unwind: bb3]
-40:45-43:10: @2[2]: _0 = const ()
-43:10-43:10: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="41:37-41:41: @0[1]: _3 = _2
-41:13-41:41: @0[2]: _4 = CheckedAdd(((*_1).0: u32), _3)
-41:13-41:41: @1[0]: ((*_1).0: u32) = move (_4.0: u32)
-42:21-42:41: @1[4]: _6 = ((*_1).0: u32)
-42:13-42:42: @1.Call: _5 = in_func(move _6) -&gt; [return: bb2, unwind: bb3]
-40:45-43:10: @2[2]: _0 = const ()
-43:10-43:10: @2.Return: return">            self.in_struct_field += incr;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="41:37-41:41: @0[1]: _3 = _2
-41:13-41:41: @0[2]: _4 = CheckedAdd(((*_1).0: u32), _3)
-41:13-41:41: @1[0]: ((*_1).0: u32) = move (_4.0: u32)
-42:21-42:41: @1[4]: _6 = ((*_1).0: u32)
-42:13-42:42: @1.Call: _5 = in_func(move _6) -&gt; [return: bb2, unwind: bb3]
-40:45-43:10: @2[2]: _0 = const ()
-43:10-43:10: @2.Return: return">            in_func(self.in_struct_field);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="41:37-41:41: @0[1]: _3 = _2
-41:13-41:41: @0[2]: _4 = CheckedAdd(((*_1).0: u32), _3)
-41:13-41:41: @1[0]: ((*_1).0: u32) = move (_4.0: u32)
-42:21-42:41: @1[4]: _6 = ((*_1).0: u32)
-42:13-42:42: @1.Call: _5 = in_func(move _6) -&gt; [return: bb2, unwind: bb3]
-40:45-43:10: @2[2]: _0 = const ()
-43:10-43:10: @2.Return: return">        }<span class="annotation">⦉@0,1,2</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 3e54d6566b481..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.inner_items/inner_items.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,187 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>inner_items.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_u32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_u32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_u32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)">    let mut countdown = 0<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="10:8-10:15: @3[6]: _7 = _1
-10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_u32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_u32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7">        countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_u32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="12:6-12:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    mod in_mod {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        const IN_MOD_CONST: u32 = 1000;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    fn in_func(a: u32) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let b = 1;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let c = a + b;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        println!("c = {}", c)</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    struct InStruct {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        in_struct_field: u32,</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    const IN_CONST: u32 = 1234;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    trait InTrait {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        fn trait_func(&amp;mut self, incr: u32);</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        fn default_trait_func(&amp;mut self) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            in_func(IN_CONST);</span></span>
-<span class="line"><span class="code" style="--layer: 0">            self.trait_func(IN_CONST);</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    impl InTrait for InStruct {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        fn trait_func(&amp;mut self, incr: u32) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            self.in_struct_field += incr;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            in_func(self.in_struct_field);</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    type InType = String;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="48:8-48:15: @7[4]: _9 = _1
-48:8-48:15: @7[5]: FakeRead(ForMatchedPlace, _9)"><span class="annotation">@7⦊</span>is_true<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="49:17-49:26: @10[2]: _11 = _5
-49:9-49:27: @10.Call: _10 = in_func(move _11) -&gt; [return: bb11, unwind: bb15]
-48:16-50:6: @11[2]: _8 = const ()
-50:6-50:6: @11.Goto: goto -&gt; bb12"><span class="annotation">@8,10,11⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="49:17-49:26: @10[2]: _11 = _5
-49:9-49:27: @10.Call: _10 = in_func(move _11) -&gt; [return: bb11, unwind: bb15]
-48:16-50:6: @11[2]: _8 = const ()
-50:6-50:6: @11.Goto: goto -&gt; bb12">        in_func(countdown);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="49:17-49:26: @10[2]: _11 = _5
-49:9-49:27: @10.Call: _10 = in_func(move _11) -&gt; [return: bb11, unwind: bb15]
-48:16-50:6: @11[2]: _8 = const ()
-50:6-50:6: @11.Goto: goto -&gt; bb12">    }<span class="annotation">⦉@8,10,11</span></span></span><span><span class="code odd" style="--layer: 1" title="50:6-50:6: @9.Goto: goto -&gt; bb12"><span class="annotation">@9⦊</span>‸<span class="annotation">⦉@9</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="52:19-54:6: @12[3]: _12 = InStruct { in_struct_field: const 101_u32 }
-52:9-52:16: @12[4]: FakeRead(ForLet, _12)
-56:5-56:8: @12[7]: _14 = &amp;mut _12
-56:5-56:29: @12.Call: _13 = &lt;InStruct as InTrait&gt;::default_trait_func(move _14) -&gt; [return: bb13, unwind: bb15]
-57:2-57:2: @13.Return: return"><span class="annotation">@12,13⦊</span>mut val = InStruct {</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="52:19-54:6: @12[3]: _12 = InStruct { in_struct_field: const 101_u32 }
-52:9-52:16: @12[4]: FakeRead(ForLet, _12)
-56:5-56:8: @12[7]: _14 = &amp;mut _12
-56:5-56:29: @12.Call: _13 = &lt;InStruct as InTrait&gt;::default_trait_func(move _14) -&gt; [return: bb13, unwind: bb15]
-57:2-57:2: @13.Return: return">        in_struct_field: 101,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="52:19-54:6: @12[3]: _12 = InStruct { in_struct_field: const 101_u32 }
-52:9-52:16: @12[4]: FakeRead(ForLet, _12)
-56:5-56:8: @12[7]: _14 = &amp;mut _12
-56:5-56:29: @12.Call: _13 = &lt;InStruct as InTrait&gt;::default_trait_func(move _14) -&gt; [return: bb13, unwind: bb15]
-57:2-57:2: @13.Return: return">    };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="52:19-54:6: @12[3]: _12 = InStruct { in_struct_field: const 101_u32 }
-52:9-52:16: @12[4]: FakeRead(ForLet, _12)
-56:5-56:8: @12[7]: _14 = &amp;mut _12
-56:5-56:29: @12.Call: _13 = &lt;InStruct as InTrait&gt;::default_trait_func(move _14) -&gt; [return: bb13, unwind: bb15]
-57:2-57:2: @13.Return: return"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="52:19-54:6: @12[3]: _12 = InStruct { in_struct_field: const 101_u32 }
-52:9-52:16: @12[4]: FakeRead(ForLet, _12)
-56:5-56:8: @12[7]: _14 = &amp;mut _12
-56:5-56:29: @12.Call: _13 = &lt;InStruct as InTrait&gt;::default_trait_func(move _14) -&gt; [return: bb13, unwind: bb15]
-57:2-57:2: @13.Return: return">    val.default_trait_func();</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="52:19-54:6: @12[3]: _12 = InStruct { in_struct_field: const 101_u32 }
-52:9-52:16: @12[4]: FakeRead(ForLet, _12)
-56:5-56:8: @12[7]: _14 = &amp;mut _12
-56:5-56:29: @12.Call: _13 = &lt;InStruct as InTrait&gt;::default_trait_func(move _14) -&gt; [return: bb13, unwind: bb15]
-57:2-57:2: @13.Return: return">}<span class="annotation">⦉@12,13</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.lazy_boolean/lazy_boolean.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.lazy_boolean/lazy_boolean.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index dd21c23acf6b3..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.lazy_boolean/lazy_boolean.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,229 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.lazy_boolean/lazy_boolean.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>lazy_boolean.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
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-        color: #dddddd;
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-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
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-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
-9:10-9:15: @3[4]: _5 = (_8.0: i32)
-9:17-9:22: @3[6]: _6 = (_8.1: i32)
-9:24-9:29: @3[8]: _7 = (_8.2: i32)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
-9:10-9:15: @3[4]: _5 = (_8.0: i32)
-9:17-9:22: @3[6]: _6 = (_8.1: i32)
-9:24-9:29: @3[8]: _7 = (_8.2: i32)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
-9:10-9:15: @3[4]: _5 = (_8.0: i32)
-9:17-9:22: @3[6]: _6 = (_8.1: i32)
-9:24-9:29: @3[8]: _7 = (_8.2: i32)">    let (mut a, mut b, mut c) = (0, 0, 0)<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="10:8-10:15: @3[12]: _10 = _1
-10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
-12:9-12:15: @6[1]: _6 = const 10_i32
-13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
-12:9-12:15: @6[1]: _6 = const 10_i32
-13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7">        a = 1;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
-12:9-12:15: @6[1]: _6 = const 10_i32
-13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7">        b = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
-12:9-12:15: @6[1]: _6 = const 10_i32
-13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7">        c = 100;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
-12:9-12:15: @6[1]: _6 = const 10_i32
-13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="14:6-14:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="16:9-16:17: @11[2]: FakeRead(ForLet, _11)"><span class="annotation">@11⦊</span>somebool<span class="annotation">⦉@11</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        =</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="18:13-18:14: @7[5]: _13 = _5
-18:17-18:18: @7[7]: _14 = _6
-18:13-18:18: @7[8]: _12 = Lt(move _13, move _14)"><span class="annotation">@7⦊</span>a &lt; b<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        ||</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="20:13-20:14: @10[2]: _16 = _6
-20:17-20:18: @10[4]: _17 = _7
-20:13-20:18: @10[5]: _15 = Lt(move _16, move _17)"><span class="annotation">@10⦊</span>b &lt; c<span class="annotation">⦉@10</span></span></span><span><span class="code even" style="--layer: 1" title="20:18-20:18: @8.Goto: goto -&gt; bb11"><span class="annotation">@8⦊</span>‸<span class="annotation">⦉@8</span></span></span><span><span class="code odd" style="--layer: 1" title="20:18-20:18: @9.Goto: goto -&gt; bb11"><span class="annotation">@9⦊</span>‸<span class="annotation">⦉@9</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="23:9-23:17: @15[2]: FakeRead(ForLet, _18)"><span class="annotation">@15⦊</span>somebool<span class="annotation">⦉@15</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        =</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="25:13-25:14: @11[6]: _20 = _6
-25:17-25:18: @11[8]: _21 = _5
-25:13-25:18: @11[9]: _19 = Lt(move _20, move _21)"><span class="annotation">@11⦊</span>b &lt; a<span class="annotation">⦉@11</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        ||</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="27:13-27:14: @14[2]: _23 = _6
-27:17-27:18: @14[4]: _24 = _7
-27:13-27:18: @14[5]: _22 = Lt(move _23, move _24)"><span class="annotation">@14⦊</span>b &lt; c<span class="annotation">⦉@14</span></span></span><span><span class="code odd" style="--layer: 1" title="27:18-27:18: @12.Goto: goto -&gt; bb15"><span class="annotation">@12⦊</span>‸<span class="annotation">⦉@12</span></span></span><span><span class="code even" style="--layer: 1" title="27:18-27:18: @13.Goto: goto -&gt; bb15"><span class="annotation">@13⦊</span>‸<span class="annotation">⦉@13</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="29:9-29:17: @19[2]: FakeRead(ForLet, _25)"><span class="annotation">@19⦊</span>somebool<span class="annotation">⦉@19</span></span></span><span class="code" style="--layer: 0"> = </span><span><span class="code even" style="--layer: 1" title="29:20-29:21: @15[6]: _27 = _5
-29:24-29:25: @15[8]: _28 = _6
-29:20-29:25: @15[9]: _26 = Lt(move _27, move _28)"><span class="annotation">@15⦊</span>a &lt; b<span class="annotation">⦉@15</span></span></span><span class="code" style="--layer: 0"> &amp;&amp; </span><span><span class="code odd" style="--layer: 1" title="29:29-29:30: @18[2]: _30 = _6
-29:33-29:34: @18[4]: _31 = _7
-29:29-29:34: @18[5]: _29 = Lt(move _30, move _31)"><span class="annotation">@18⦊</span>b &lt; c<span class="annotation">⦉@18</span></span></span><span><span class="code even" style="--layer: 1" title="29:34-29:34: @16.Goto: goto -&gt; bb19"><span class="annotation">@16⦊</span>‸<span class="annotation">⦉@16</span></span></span><span><span class="code odd" style="--layer: 1" title="29:34-29:34: @17.Goto: goto -&gt; bb19"><span class="annotation">@17⦊</span>‸<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="30:9-30:17: @23[2]: FakeRead(ForLet, _32)"><span class="annotation">@23⦊</span>somebool<span class="annotation">⦉@23</span></span></span><span class="code" style="--layer: 0"> = </span><span><span class="code odd" style="--layer: 1" title="30:20-30:21: @19[6]: _34 = _6
-30:24-30:25: @19[8]: _35 = _5
-30:20-30:25: @19[9]: _33 = Lt(move _34, move _35)"><span class="annotation">@19⦊</span>b &lt; a<span class="annotation">⦉@19</span></span></span><span class="code" style="--layer: 0"> &amp;&amp; </span><span><span class="code even" style="--layer: 1" title="30:29-30:30: @22[2]: _37 = _6
-30:33-30:34: @22[4]: _38 = _7
-30:29-30:34: @22[5]: _36 = Lt(move _37, move _38)"><span class="annotation">@22⦊</span>b &lt; c<span class="annotation">⦉@22</span></span></span><span><span class="code odd" style="--layer: 1" title="30:34-30:34: @20.Goto: goto -&gt; bb23"><span class="annotation">@20⦊</span>‸<span class="annotation">⦉@20</span></span></span><span><span class="code even" style="--layer: 1" title="30:34-30:34: @21.Goto: goto -&gt; bb23"><span class="annotation">@21⦊</span>‸<span class="annotation">⦉@21</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="34:9-34:16: @23[6]: _41 = _1
-33:9-34:16: @23[7]: _40 = Not(move _41)
-33:9-34:16: @23[9]: FakeRead(ForMatchedPlace, _40)"><span class="annotation">@23⦊</span>!</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="34:9-34:16: @23[6]: _41 = _1
-33:9-34:16: @23[7]: _40 = Not(move _41)
-33:9-34:16: @23[9]: FakeRead(ForMatchedPlace, _40)">        is_true<span class="annotation">⦉@23</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="36:9-36:14: @26[0]: _5 = const 2_i32
-35:5-38:6: @26[1]: _39 = const ()
-38:6-38:6: @26.Goto: goto -&gt; bb27"><span class="annotation">@24,26⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="36:9-36:14: @26[0]: _5 = const 2_i32
-35:5-38:6: @26[1]: _39 = const ()
-38:6-38:6: @26.Goto: goto -&gt; bb27">        a = 2</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="36:9-36:14: @26[0]: _5 = const 2_i32
-35:5-38:6: @26[1]: _39 = const ()
-38:6-38:6: @26.Goto: goto -&gt; bb27">        ;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="36:9-36:14: @26[0]: _5 = const 2_i32
-35:5-38:6: @26[1]: _39 = const ()
-38:6-38:6: @26.Goto: goto -&gt; bb27">    }<span class="annotation">⦉@24,26</span></span></span><span><span class="code odd" style="--layer: 1" title="38:6-38:6: @25.Goto: goto -&gt; bb27"><span class="annotation">@25⦊</span>‸<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="41:9-41:16: @27[4]: _43 = _1
-41:9-41:16: @27[5]: FakeRead(ForMatchedPlace, _43)"><span class="annotation">@27⦊</span>is_true<span class="annotation">⦉@27</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="43:9-43:15: @30[0]: _6 = const 30_i32
-42:5-45:6: @30[1]: _42 = const ()"><span class="annotation">@28,30⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="43:9-43:15: @30[0]: _6 = const 30_i32
-42:5-45:6: @30[1]: _42 = const ()">        b = 30</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="43:9-43:15: @30[0]: _6 = const 30_i32
-42:5-45:6: @30[1]: _42 = const ()">        ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="43:9-43:15: @30[0]: _6 = const 30_i32
-42:5-45:6: @30[1]: _42 = const ()">    }<span class="annotation">⦉@28,30</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    else</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="48:9-48:16: @29[0]: _7 = const 400_i32
-47:5-50:6: @29[1]: _42 = const ()"><span class="annotation">@29⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="48:9-48:16: @29[0]: _7 = const 400_i32
-47:5-50:6: @29[1]: _42 = const ()">        c = 400</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="48:9-48:16: @29[0]: _7 = const 400_i32
-47:5-50:6: @29[1]: _42 = const ()">        ;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="48:9-48:16: @29[0]: _7 = const 400_i32
-47:5-50:6: @29[1]: _42 = const ()">    }<span class="annotation">⦉@29</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="52:9-52:16: @31[5]: _46 = _1
-52:8-52:16: @31[6]: _45 = Not(move _46)
-52:8-52:16: @31[8]: FakeRead(ForMatchedPlace, _45)"><span class="annotation">@31⦊</span>!is_true<span class="annotation">⦉@31</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="53:9-53:14: @34[0]: _5 = const 2_i32
-52:17-54:6: @34[1]: _44 = const ()
-54:6-54:6: @34.Goto: goto -&gt; bb35"><span class="annotation">@32,34⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="53:9-53:14: @34[0]: _5 = const 2_i32
-52:17-54:6: @34[1]: _44 = const ()
-54:6-54:6: @34.Goto: goto -&gt; bb35">        a = 2;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="53:9-53:14: @34[0]: _5 = const 2_i32
-52:17-54:6: @34[1]: _44 = const ()
-54:6-54:6: @34.Goto: goto -&gt; bb35">    }<span class="annotation">⦉@32,34</span></span></span><span><span class="code odd" style="--layer: 1" title="54:6-54:6: @33.Goto: goto -&gt; bb35"><span class="annotation">@33⦊</span>‸<span class="annotation">⦉@33</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="56:8-56:15: @35[3]: _47 = _1
-56:8-56:15: @35[4]: FakeRead(ForMatchedPlace, _47)"><span class="annotation">@35⦊</span>is_true<span class="annotation">⦉@35</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="57:9-57:15: @38[0]: _6 = const 30_i32
-56:16-58:6: @38[1]: _0 = const ()"><span class="annotation">@36,38⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="57:9-57:15: @38[0]: _6 = const 30_i32
-56:16-58:6: @38[1]: _0 = const ()">        b = 30;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="57:9-57:15: @38[0]: _6 = const 30_i32
-56:16-58:6: @38[1]: _0 = const ()">    }<span class="annotation">⦉@36,38</span></span></span><span class="code" style="--layer: 0"> else </span><span><span class="code even" style="--layer: 1" title="59:9-59:16: @37[0]: _7 = const 400_i32
-58:12-60:6: @37[1]: _0 = const ()"><span class="annotation">@37⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="59:9-59:16: @37[0]: _7 = const 400_i32
-58:12-60:6: @37[1]: _0 = const ()">        c = 400;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="59:9-59:16: @37[0]: _7 = const 400_i32
-58:12-60:6: @37[1]: _0 = const ()">    }<span class="annotation">⦉@37</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="61:2-61:2: @39.Return: return"><span class="annotation">@39⦊</span>‸<span class="annotation">⦉@39</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loop_break_value/loop_break_value.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loop_break_value/loop_break_value.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index eff27bf3557a9..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loop_break_value/loop_break_value.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,128 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loop_break_value/loop_break_value.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>loop_break_value.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return"><span class="annotation">@0,1⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">    let result</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">        =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">            loop</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">        {</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">            break</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">            10</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">            ;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">        }</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">    ;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
-9:13-9:15: @1[0]: _1 = const 10_i32
-4:9-4:15: @1[1]: FakeRead(ForLet, _1)
-3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return">}<span class="annotation">⦉@0,1</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loops_branches/loops_branches.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loops_branches/loops_branches.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 73b3e20946c04..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loops_branches/loops_branches.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,161 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>loops_branches.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 21"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="23:22-23:31: @0[1]: _1 = DebugTest
-23:9-23:19: @0[2]: FakeRead(ForLet, _1)
-24:14-24:20: @0[9]: _19 = const main::promoted[0]
-24:14-24:20: @0[10]: _7 = &amp;(*_19)
-24:14-24:20: @0[11]: _6 = &amp;(*_7)
-24:14-24:20: @0[12]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-24:22-24:32: @0[20]: _14 = &amp;_1
-24:5-24:34: @0[21]: _13 = (move _14,)
-24:5-24:34: @0[23]: FakeRead(ForMatchedPlace, _13)
-24:5-24:34: @0[25]: _15 = (_13.0: &amp;DebugTest)
-24:5-24:34: @0[28]: _17 = &amp;(*_15)
-24:5-24:34: @0[30]: _18 = &lt;DebugTest as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r DebugTest, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-24:5-24:34: @0.Call: _16 = ArgumentV1::new::&lt;DebugTest&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-24:5-24:34: @1[2]: _12 = [move _16]
-24:5-24:34: @1[5]: _11 = &amp;_12
-24:5-24:34: @1[6]: _10 = &amp;(*_11)
-24:5-24:34: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-24:5-24:34: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-24:5-24:34: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-24:5-24:34: @3[6]: _2 = const ()
-22:11-25:2: @3[8]: _0 = const ()
-25:2-25:2: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="23:22-23:31: @0[1]: _1 = DebugTest
-23:9-23:19: @0[2]: FakeRead(ForLet, _1)
-24:14-24:20: @0[9]: _19 = const main::promoted[0]
-24:14-24:20: @0[10]: _7 = &amp;(*_19)
-24:14-24:20: @0[11]: _6 = &amp;(*_7)
-24:14-24:20: @0[12]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-24:22-24:32: @0[20]: _14 = &amp;_1
-24:5-24:34: @0[21]: _13 = (move _14,)
-24:5-24:34: @0[23]: FakeRead(ForMatchedPlace, _13)
-24:5-24:34: @0[25]: _15 = (_13.0: &amp;DebugTest)
-24:5-24:34: @0[28]: _17 = &amp;(*_15)
-24:5-24:34: @0[30]: _18 = &lt;DebugTest as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r DebugTest, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-24:5-24:34: @0.Call: _16 = ArgumentV1::new::&lt;DebugTest&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-24:5-24:34: @1[2]: _12 = [move _16]
-24:5-24:34: @1[5]: _11 = &amp;_12
-24:5-24:34: @1[6]: _10 = &amp;(*_11)
-24:5-24:34: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-24:5-24:34: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-24:5-24:34: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-24:5-24:34: @3[6]: _2 = const ()
-22:11-25:2: @3[8]: _0 = const ()
-25:2-25:2: @3.Return: return">    let debug_test = DebugTest;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="23:22-23:31: @0[1]: _1 = DebugTest
-23:9-23:19: @0[2]: FakeRead(ForLet, _1)
-24:14-24:20: @0[9]: _19 = const main::promoted[0]
-24:14-24:20: @0[10]: _7 = &amp;(*_19)
-24:14-24:20: @0[11]: _6 = &amp;(*_7)
-24:14-24:20: @0[12]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-24:22-24:32: @0[20]: _14 = &amp;_1
-24:5-24:34: @0[21]: _13 = (move _14,)
-24:5-24:34: @0[23]: FakeRead(ForMatchedPlace, _13)
-24:5-24:34: @0[25]: _15 = (_13.0: &amp;DebugTest)
-24:5-24:34: @0[28]: _17 = &amp;(*_15)
-24:5-24:34: @0[30]: _18 = &lt;DebugTest as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r DebugTest, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-24:5-24:34: @0.Call: _16 = ArgumentV1::new::&lt;DebugTest&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-24:5-24:34: @1[2]: _12 = [move _16]
-24:5-24:34: @1[5]: _11 = &amp;_12
-24:5-24:34: @1[6]: _10 = &amp;(*_11)
-24:5-24:34: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-24:5-24:34: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-24:5-24:34: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-24:5-24:34: @3[6]: _2 = const ()
-22:11-25:2: @3[8]: _0 = const ()
-25:2-25:2: @3.Return: return">    println!("{:?}", debug_test);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="23:22-23:31: @0[1]: _1 = DebugTest
-23:9-23:19: @0[2]: FakeRead(ForLet, _1)
-24:14-24:20: @0[9]: _19 = const main::promoted[0]
-24:14-24:20: @0[10]: _7 = &amp;(*_19)
-24:14-24:20: @0[11]: _6 = &amp;(*_7)
-24:14-24:20: @0[12]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
-24:22-24:32: @0[20]: _14 = &amp;_1
-24:5-24:34: @0[21]: _13 = (move _14,)
-24:5-24:34: @0[23]: FakeRead(ForMatchedPlace, _13)
-24:5-24:34: @0[25]: _15 = (_13.0: &amp;DebugTest)
-24:5-24:34: @0[28]: _17 = &amp;(*_15)
-24:5-24:34: @0[30]: _18 = &lt;DebugTest as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r DebugTest, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-24:5-24:34: @0.Call: _16 = ArgumentV1::new::&lt;DebugTest&gt;(move _17, move _18) -&gt; [return: bb1, unwind: bb4]
-24:5-24:34: @1[2]: _12 = [move _16]
-24:5-24:34: @1[5]: _11 = &amp;_12
-24:5-24:34: @1[6]: _10 = &amp;(*_11)
-24:5-24:34: @1[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-24:5-24:34: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb4]
-24:5-24:34: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
-24:5-24:34: @3[6]: _2 = const ()
-22:11-25:2: @3[8]: _0 = const ()
-25:2-25:2: @3.Return: return">}<span class="annotation">⦉@0,1,2,3</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loops_branches/loops_branches.{impl#0}-fmt.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loops_branches/loops_branches.{impl#0}-fmt.-------.InstrumentCoverage.0.html
deleted file mode 100644
index a98ed9e8ce182..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.loops_branches/loops_branches.{impl#0}-fmt.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,104 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.%7Bimpl%230%7D-fmt.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>loops_branches.{impl#0}-fmt - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 8"><span class="line">    <span class="code" style="--layer: 0">fn fmt(&amp;self, f: &amp;mut std::fmt::Formatter) -&gt; std::fmt::Result {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="10:12-10:16: @0[2]: _4 = const true
-10:12-10:16: @0[3]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            if </span><span><span class="code odd" style="--layer: 1" title="11:16-11:21: @3[2]: _6 = const false
-11:16-11:21: @3[3]: FakeRead(ForMatchedPlace, _6)"><span class="annotation">@1,3⦊</span>false<span class="annotation">⦉@1,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                while </span><span><span class="code even" style="--layer: 1" title="12:23-12:27: @7[1]: _8 = const true
-12:23-12:27: @7[2]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@6,7⦊</span>true<span class="annotation">⦉@6,7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="12:28-13:18: @10[0]: _7 = const ()
-13:18-13:18: @10.Goto: goto -&gt; bb6"><span class="annotation">@8,10⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="12:28-13:18: @10[0]: _7 = const ()
-13:18-13:18: @10.Goto: goto -&gt; bb6">                }<span class="annotation">⦉@8,10</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="14:14-14:14: @9.Goto: goto -&gt; bb11"><span class="annotation">@9⦊</span>‸<span class="annotation">⦉@9</span></span></span><span><span class="code odd" style="--layer: 1" title="14:14-14:14: @5.Goto: goto -&gt; bb11"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="15:20-15:21: @11[6]: _13 = &amp;mut (*_2)
-15:23-15:30: @11[11]: _32 = const &lt;DebugTest as Debug&gt;::fmt::promoted[1]
-15:23-15:30: @11[12]: _17 = &amp;(*_32)
-15:23-15:30: @11[13]: _16 = &amp;(*_17)
-15:23-15:30: @11[14]: _15 = move _16 as &amp;[&amp;str] (Pointer(Unsize))
-15:13-15:31: @11[20]: _23 = ()
-15:13-15:31: @11[21]: FakeRead(ForMatchedPlace, _23)
-15:13-15:31: @11[22]: _31 = const &lt;DebugTest as Debug&gt;::fmt::promoted[0]
-15:13-15:31: @11[23]: _21 = &amp;(*_31)
-15:13-15:31: @11[24]: _20 = &amp;(*_21)
-15:13-15:31: @11[25]: _19 = move _20 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-15:13-15:31: @11.Call: _14 = Arguments::new_v1(move _15, move _19) -&gt; [return: bb12, unwind: bb23]
-15:13-15:31: @12.Call: _12 = Formatter::write_fmt(move _13, move _14) -&gt; [return: bb13, unwind: bb23]"><span class="annotation">@11,12,13,14⦊</span>write!(f, "error")<span class="annotation">⦉@11,12,13,14</span></span></span><span><span class="code odd" style="--layer: 1" title="15:31-15:32: @18[1]: _25 = ((_11 as Err).0: std::fmt::Error)
-15:31-15:32: @18[4]: _28 = _25
-15:31-15:32: @18.Call: _27 = &lt;std::fmt::Error as From&lt;std::fmt::Error&gt;&gt;::from(move _28) -&gt; [return: bb19, unwind: bb23]"><span class="annotation">@16,18,19,20⦊</span>?<span class="annotation">⦉@16,18,19,20</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        } else </span><span><span class="code even" style="--layer: 1" title="16:16-17:10: @2[0]: _3 = const ()"><span class="annotation">@2⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="16:16-17:10: @2[0]: _3 = const ()">        }<span class="annotation">⦉@2</span></span></span><span><span class="code odd" style="--layer: 1" title="17:10-17:10: @15.Goto: goto -&gt; bb21"><span class="annotation">@15⦊</span>‸<span class="annotation">⦉@15</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="18:12-18:14: @21[3]: _30 = ()
-18:9-18:15: @21[4]: _0 = std::result::Result::&lt;(), std::fmt::Error&gt;::Ok(move _30)"><span class="annotation">@21⦊</span>Ok(())<span class="annotation">⦉@21</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="19:6-19:6: @22.Return: return"><span class="annotation">@22⦊</span>‸<span class="annotation">⦉@22</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.nested_loops/nested_loops.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.nested_loops/nested_loops.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 0f3ea3ce6a89d..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.nested_loops/nested_loops.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,153 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.nested_loops/nested_loops.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>nested_loops.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 0"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="2:19-2:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb35]
-2:19-2:35: @1[0]: _3 = &amp;_4
-2:19-2:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb34]
-2:19-2:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-2:9-2:16: @2[3]: FakeRead(ForLet, _1)
-3:25-3:27: @3[2]: _5 = const 10_i32
-3:9-3:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="2:19-2:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb35]
-2:19-2:35: @1[0]: _3 = &amp;_4
-2:19-2:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb34]
-2:19-2:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-2:9-2:16: @2[3]: FakeRead(ForLet, _1)
-3:25-3:27: @3[2]: _5 = const 10_i32
-3:9-3:22: @3[3]: FakeRead(ForLet, _5)">    let mut countdown = 10<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    'outer: while </span><span><span class="code odd" style="--layer: 1" title="5:19-5:28: @5[2]: _8 = _5
-5:19-5:32: @5[3]: _7 = Gt(move _8, const 0_i32)
-5:19-5:32: @5[5]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@4,5⦊</span>countdown &gt; 0<span class="annotation">⦉@4,5</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="6:21-6:24: @8[1]: _9 = const 100_i32
-6:13-6:18: @8[2]: FakeRead(ForLet, _9)
-7:21-7:24: @8[4]: _10 = const 100_i32
-7:13-7:18: @8[5]: FakeRead(ForLet, _10)"><span class="annotation">@6,8,9⦊</span>mut a = 100;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="6:21-6:24: @8[1]: _9 = const 100_i32
-6:13-6:18: @8[2]: FakeRead(ForLet, _9)
-7:21-7:24: @8[4]: _10 = const 100_i32
-7:13-7:18: @8[5]: FakeRead(ForLet, _10)">        let mut b = 100<span class="annotation">⦉@6,8,9</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        for </span><span><span class="code odd" style="--layer: 1" title="8:13-8:14: @16[1]: _21 = ((_17 as Some).0: i32)
-8:13-8:14: @16[3]: _22 = _21
-8:13-8:14: @16[4]: _15 = move _22
-8:13-8:14: @16[5]: _16 = const ()"><span class="annotation">@14,16⦊</span>_<span class="annotation">⦉@14,16</span></span></span><span class="code" style="--layer: 0"> in </span><span><span class="code even" style="--layer: 1" title="8:18-8:23: @11[5]: _19 = &amp;mut _14
-8:18-8:23: @11[6]: _18 = &amp;mut (*_19)
-8:18-8:23: @11.Call: _17 = &lt;std::ops::Range&lt;i32&gt; as Iterator&gt;::next(move _18) -&gt; [return: bb12, unwind: bb35]
-8:18-8:23: @12[1]: FakeRead(ForMatchedPlace, _17)"><span class="annotation">@10,11,12⦊</span>0..50<span class="annotation">⦉@10,11,12</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            if </span><span><span class="code odd" style="--layer: 1" title="9:16-9:17: @16[15]: _27 = _9
-9:16-9:22: @16[16]: _26 = Lt(move _27, const 30_i32)
-9:16-9:22: @16[18]: FakeRead(ForMatchedPlace, _26)"><span class="annotation">@14,16⦊</span>a &lt; 30<span class="annotation">⦉@14,16</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code even" style="--layer: 1" title="10:17-10:22: @19[0]: _11 = const ()"><span class="annotation">@17,19⦊</span>break<span class="annotation">⦉@17,19</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="12:13-12:19: @18[3]: _29 = CheckedSub(_9, const 5_i32)
-12:13-12:19: @20[0]: _9 = move (_29.0: i32)
-13:13-13:19: @20[1]: _30 = CheckedSub(_10, const 5_i32)
-13:13-13:19: @21[0]: _10 = move (_30.0: i32)"><span class="annotation">@18,20,21⦊</span>a -= 5;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="12:13-12:19: @18[3]: _29 = CheckedSub(_9, const 5_i32)
-12:13-12:19: @20[0]: _9 = move (_29.0: i32)
-13:13-13:19: @20[1]: _30 = CheckedSub(_10, const 5_i32)
-13:13-13:19: @21[0]: _10 = move (_30.0: i32)">            b -= 5<span class="annotation">⦉@18,20,21</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            if </span><span><span class="code odd" style="--layer: 1" title="14:16-14:17: @21[3]: _32 = _10
-14:16-14:22: @21[4]: _31 = Lt(move _32, const 90_i32)
-14:16-14:22: @21[6]: FakeRead(ForMatchedPlace, _31)"><span class="annotation">@18,20,21⦊</span>b &lt; 90<span class="annotation">⦉@18,20,21</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code even" style="--layer: 1" title="15:17-15:24: @24[0]: _33 = CheckedSub(_9, const 10_i32)
-15:17-15:24: @25[0]: _9 = move (_33.0: i32)
-16:20-16:27: @25[2]: _34 = _1
-16:20-16:27: @25[3]: FakeRead(ForMatchedPlace, _34)"><span class="annotation">@22,24,25⦊</span>a -= 10;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="15:17-15:24: @24[0]: _33 = CheckedSub(_9, const 10_i32)
-15:17-15:24: @25[0]: _9 = move (_33.0: i32)
-16:20-16:27: @25[2]: _34 = _1
-16:20-16:27: @25[3]: FakeRead(ForMatchedPlace, _34)">                if is_true<span class="annotation">⦉@22,24,25</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                    </span><span><span class="code odd" style="--layer: 1" title="17:21-17:33: @28[0]: _0 = const ()"><span class="annotation">@26,28⦊</span>break 'outer<span class="annotation">⦉@26,28</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                } else </span><span><span class="code even" style="--layer: 1" title="19:21-19:27: @27[0]: _36 = CheckedSub(_9, const 2_i32)
-19:21-19:27: @29[0]: _9 = move (_36.0: i32)
-18:24-20:18: @29[1]: _24 = const ()
-21:14-21:14: @29.Goto: goto -&gt; bb30"><span class="annotation">@27,29⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:21-19:27: @27[0]: _36 = CheckedSub(_9, const 2_i32)
-19:21-19:27: @29[0]: _9 = move (_36.0: i32)
-18:24-20:18: @29[1]: _24 = const ()
-21:14-21:14: @29.Goto: goto -&gt; bb30">                    a -= 2;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:21-19:27: @27[0]: _36 = CheckedSub(_9, const 2_i32)
-19:21-19:27: @29[0]: _9 = move (_36.0: i32)
-18:24-20:18: @29[1]: _24 = const ()
-21:14-21:14: @29.Goto: goto -&gt; bb30">                }</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:21-19:27: @27[0]: _36 = CheckedSub(_9, const 2_i32)
-19:21-19:27: @29[0]: _9 = move (_36.0: i32)
-18:24-20:18: @29[1]: _24 = const ()
-21:14-21:14: @29.Goto: goto -&gt; bb30">            }<span class="annotation">⦉@27,29</span></span></span><span><span class="code odd" style="--layer: 1" title="21:14-21:14: @23.Goto: goto -&gt; bb30"><span class="annotation">@23⦊</span>‸<span class="annotation">⦉@23</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span><span><span class="code even" style="--layer: 1" title="22:10-22:10: @30.Goto: goto -&gt; bb10"><span class="annotation">@30⦊</span>‸<span class="annotation">⦉@30</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="23:9-23:23: @31[4]: _37 = CheckedSub(_5, const 1_i32)
-23:9-23:23: @32[0]: _5 = move (_37.0: i32)"><span class="annotation">@31,32⦊</span>countdown -= 1<span class="annotation">⦉@31,32</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="24:6-24:6: @7.Goto: goto -&gt; bb33"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="25:2-25:2: @33.Return: return"><span class="annotation">@33⦊</span>‸<span class="annotation">⦉@33</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.overflow/overflow.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.overflow/overflow.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 4f237d6561d33..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.overflow/overflow.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,259 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>overflow.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 14"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="16:25-16:27: @0[1]: _1 = const 10_i32
-16:9-16:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="17:11-17:20: @2[2]: _5 = _1
-17:11-17:24: @2[3]: _4 = Gt(move _5, const 0_i32)
-17:11-17:24: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown &gt; 0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="18:12-18:21: @5[3]: _8 = _1
-18:12-18:26: @5[4]: _7 = Eq(move _8, const 1_i32)
-18:12-18:26: @5[6]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@3,5⦊</span>countdown == 1<span class="annotation">⦉@3,5</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="19:26-19:44: @8.Call: _9 = might_overflow(const 10_u32) -&gt; [return: bb9, unwind: bb23]
-19:17-19:23: @9[0]: FakeRead(ForLet, _9)
-20:22-20:34: @9[7]: _51 = const main::promoted[1]
-20:22-20:34: @9[8]: _15 = &amp;(*_51)
-20:22-20:34: @9[9]: _14 = &amp;(*_15)
-20:22-20:34: @9[10]: _13 = move _14 as &amp;[&amp;str] (Pointer(Unsize))
-20:36-20:42: @9[18]: _22 = &amp;_9
-20:13-20:44: @9[19]: _21 = (move _22,)
-20:13-20:44: @9[21]: FakeRead(ForMatchedPlace, _21)
-20:13-20:44: @9[23]: _23 = (_21.0: &amp;u32)
-20:13-20:44: @9[26]: _25 = &amp;(*_23)
-20:13-20:44: @9[28]: _26 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-20:13-20:44: @9.Call: _24 = ArgumentV1::new::&lt;u32&gt;(move _25, move _26) -&gt; [return: bb10, unwind: bb23]
-20:13-20:44: @10[2]: _20 = [move _24]
-20:13-20:44: @10[5]: _19 = &amp;_20
-20:13-20:44: @10[6]: _18 = &amp;(*_19)
-20:13-20:44: @10[7]: _17 = move _18 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-20:13-20:44: @10.Call: _12 = Arguments::new_v1(move _13, move _17) -&gt; [return: bb11, unwind: bb23]
-20:13-20:44: @11.Call: _11 = _print(move _12) -&gt; [return: bb12, unwind: bb23]
-20:13-20:44: @12[6]: _10 = const ()
-18:27-21:10: @12[8]: _6 = const ()"><span class="annotation">@6,8,9,10,11,12⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="19:26-19:44: @8.Call: _9 = might_overflow(const 10_u32) -&gt; [return: bb9, unwind: bb23]
-19:17-19:23: @9[0]: FakeRead(ForLet, _9)
-20:22-20:34: @9[7]: _51 = const main::promoted[1]
-20:22-20:34: @9[8]: _15 = &amp;(*_51)
-20:22-20:34: @9[9]: _14 = &amp;(*_15)
-20:22-20:34: @9[10]: _13 = move _14 as &amp;[&amp;str] (Pointer(Unsize))
-20:36-20:42: @9[18]: _22 = &amp;_9
-20:13-20:44: @9[19]: _21 = (move _22,)
-20:13-20:44: @9[21]: FakeRead(ForMatchedPlace, _21)
-20:13-20:44: @9[23]: _23 = (_21.0: &amp;u32)
-20:13-20:44: @9[26]: _25 = &amp;(*_23)
-20:13-20:44: @9[28]: _26 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-20:13-20:44: @9.Call: _24 = ArgumentV1::new::&lt;u32&gt;(move _25, move _26) -&gt; [return: bb10, unwind: bb23]
-20:13-20:44: @10[2]: _20 = [move _24]
-20:13-20:44: @10[5]: _19 = &amp;_20
-20:13-20:44: @10[6]: _18 = &amp;(*_19)
-20:13-20:44: @10[7]: _17 = move _18 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-20:13-20:44: @10.Call: _12 = Arguments::new_v1(move _13, move _17) -&gt; [return: bb11, unwind: bb23]
-20:13-20:44: @11.Call: _11 = _print(move _12) -&gt; [return: bb12, unwind: bb23]
-20:13-20:44: @12[6]: _10 = const ()
-18:27-21:10: @12[8]: _6 = const ()">            let result = might_overflow(10);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="19:26-19:44: @8.Call: _9 = might_overflow(const 10_u32) -&gt; [return: bb9, unwind: bb23]
-19:17-19:23: @9[0]: FakeRead(ForLet, _9)
-20:22-20:34: @9[7]: _51 = const main::promoted[1]
-20:22-20:34: @9[8]: _15 = &amp;(*_51)
-20:22-20:34: @9[9]: _14 = &amp;(*_15)
-20:22-20:34: @9[10]: _13 = move _14 as &amp;[&amp;str] (Pointer(Unsize))
-20:36-20:42: @9[18]: _22 = &amp;_9
-20:13-20:44: @9[19]: _21 = (move _22,)
-20:13-20:44: @9[21]: FakeRead(ForMatchedPlace, _21)
-20:13-20:44: @9[23]: _23 = (_21.0: &amp;u32)
-20:13-20:44: @9[26]: _25 = &amp;(*_23)
-20:13-20:44: @9[28]: _26 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-20:13-20:44: @9.Call: _24 = ArgumentV1::new::&lt;u32&gt;(move _25, move _26) -&gt; [return: bb10, unwind: bb23]
-20:13-20:44: @10[2]: _20 = [move _24]
-20:13-20:44: @10[5]: _19 = &amp;_20
-20:13-20:44: @10[6]: _18 = &amp;(*_19)
-20:13-20:44: @10[7]: _17 = move _18 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-20:13-20:44: @10.Call: _12 = Arguments::new_v1(move _13, move _17) -&gt; [return: bb11, unwind: bb23]
-20:13-20:44: @11.Call: _11 = _print(move _12) -&gt; [return: bb12, unwind: bb23]
-20:13-20:44: @12[6]: _10 = const ()
-18:27-21:10: @12[8]: _6 = const ()">            println!("Result: {}", result);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="19:26-19:44: @8.Call: _9 = might_overflow(const 10_u32) -&gt; [return: bb9, unwind: bb23]
-19:17-19:23: @9[0]: FakeRead(ForLet, _9)
-20:22-20:34: @9[7]: _51 = const main::promoted[1]
-20:22-20:34: @9[8]: _15 = &amp;(*_51)
-20:22-20:34: @9[9]: _14 = &amp;(*_15)
-20:22-20:34: @9[10]: _13 = move _14 as &amp;[&amp;str] (Pointer(Unsize))
-20:36-20:42: @9[18]: _22 = &amp;_9
-20:13-20:44: @9[19]: _21 = (move _22,)
-20:13-20:44: @9[21]: FakeRead(ForMatchedPlace, _21)
-20:13-20:44: @9[23]: _23 = (_21.0: &amp;u32)
-20:13-20:44: @9[26]: _25 = &amp;(*_23)
-20:13-20:44: @9[28]: _26 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-20:13-20:44: @9.Call: _24 = ArgumentV1::new::&lt;u32&gt;(move _25, move _26) -&gt; [return: bb10, unwind: bb23]
-20:13-20:44: @10[2]: _20 = [move _24]
-20:13-20:44: @10[5]: _19 = &amp;_20
-20:13-20:44: @10[6]: _18 = &amp;(*_19)
-20:13-20:44: @10[7]: _17 = move _18 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-20:13-20:44: @10.Call: _12 = Arguments::new_v1(move _13, move _17) -&gt; [return: bb11, unwind: bb23]
-20:13-20:44: @11.Call: _11 = _print(move _12) -&gt; [return: bb12, unwind: bb23]
-20:13-20:44: @12[6]: _10 = const ()
-18:27-21:10: @12[8]: _6 = const ()">        }<span class="annotation">⦉@6,8,9,10,11,12</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code even" style="--layer: 1" title="21:19-21:28: @7[2]: _28 = _1
-21:19-21:32: @7[3]: _27 = Lt(move _28, const 5_i32)
-21:19-21:32: @7[5]: FakeRead(ForMatchedPlace, _27)"><span class="annotation">@7⦊</span>countdown &lt; 5<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="22:26-22:43: @15.Call: _29 = might_overflow(const 1_u32) -&gt; [return: bb16, unwind: bb23]
-22:17-22:23: @16[0]: FakeRead(ForLet, _29)
-23:22-23:34: @16[7]: _50 = const main::promoted[0]
-23:22-23:34: @16[8]: _35 = &amp;(*_50)
-23:22-23:34: @16[9]: _34 = &amp;(*_35)
-23:22-23:34: @16[10]: _33 = move _34 as &amp;[&amp;str] (Pointer(Unsize))
-23:36-23:42: @16[18]: _42 = &amp;_29
-23:13-23:44: @16[19]: _41 = (move _42,)
-23:13-23:44: @16[21]: FakeRead(ForMatchedPlace, _41)
-23:13-23:44: @16[23]: _43 = (_41.0: &amp;u32)
-23:13-23:44: @16[26]: _45 = &amp;(*_43)
-23:13-23:44: @16[28]: _46 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-23:13-23:44: @16.Call: _44 = ArgumentV1::new::&lt;u32&gt;(move _45, move _46) -&gt; [return: bb17, unwind: bb23]
-23:13-23:44: @17[2]: _40 = [move _44]
-23:13-23:44: @17[5]: _39 = &amp;_40
-23:13-23:44: @17[6]: _38 = &amp;(*_39)
-23:13-23:44: @17[7]: _37 = move _38 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-23:13-23:44: @17.Call: _32 = Arguments::new_v1(move _33, move _37) -&gt; [return: bb18, unwind: bb23]
-23:13-23:44: @18.Call: _31 = _print(move _32) -&gt; [return: bb19, unwind: bb23]
-23:13-23:44: @19[6]: _30 = const ()
-21:33-24:10: @19[8]: _6 = const ()"><span class="annotation">@13,15,16,17,18,19⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="22:26-22:43: @15.Call: _29 = might_overflow(const 1_u32) -&gt; [return: bb16, unwind: bb23]
-22:17-22:23: @16[0]: FakeRead(ForLet, _29)
-23:22-23:34: @16[7]: _50 = const main::promoted[0]
-23:22-23:34: @16[8]: _35 = &amp;(*_50)
-23:22-23:34: @16[9]: _34 = &amp;(*_35)
-23:22-23:34: @16[10]: _33 = move _34 as &amp;[&amp;str] (Pointer(Unsize))
-23:36-23:42: @16[18]: _42 = &amp;_29
-23:13-23:44: @16[19]: _41 = (move _42,)
-23:13-23:44: @16[21]: FakeRead(ForMatchedPlace, _41)
-23:13-23:44: @16[23]: _43 = (_41.0: &amp;u32)
-23:13-23:44: @16[26]: _45 = &amp;(*_43)
-23:13-23:44: @16[28]: _46 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-23:13-23:44: @16.Call: _44 = ArgumentV1::new::&lt;u32&gt;(move _45, move _46) -&gt; [return: bb17, unwind: bb23]
-23:13-23:44: @17[2]: _40 = [move _44]
-23:13-23:44: @17[5]: _39 = &amp;_40
-23:13-23:44: @17[6]: _38 = &amp;(*_39)
-23:13-23:44: @17[7]: _37 = move _38 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-23:13-23:44: @17.Call: _32 = Arguments::new_v1(move _33, move _37) -&gt; [return: bb18, unwind: bb23]
-23:13-23:44: @18.Call: _31 = _print(move _32) -&gt; [return: bb19, unwind: bb23]
-23:13-23:44: @19[6]: _30 = const ()
-21:33-24:10: @19[8]: _6 = const ()">            let result = might_overflow(1);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="22:26-22:43: @15.Call: _29 = might_overflow(const 1_u32) -&gt; [return: bb16, unwind: bb23]
-22:17-22:23: @16[0]: FakeRead(ForLet, _29)
-23:22-23:34: @16[7]: _50 = const main::promoted[0]
-23:22-23:34: @16[8]: _35 = &amp;(*_50)
-23:22-23:34: @16[9]: _34 = &amp;(*_35)
-23:22-23:34: @16[10]: _33 = move _34 as &amp;[&amp;str] (Pointer(Unsize))
-23:36-23:42: @16[18]: _42 = &amp;_29
-23:13-23:44: @16[19]: _41 = (move _42,)
-23:13-23:44: @16[21]: FakeRead(ForMatchedPlace, _41)
-23:13-23:44: @16[23]: _43 = (_41.0: &amp;u32)
-23:13-23:44: @16[26]: _45 = &amp;(*_43)
-23:13-23:44: @16[28]: _46 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-23:13-23:44: @16.Call: _44 = ArgumentV1::new::&lt;u32&gt;(move _45, move _46) -&gt; [return: bb17, unwind: bb23]
-23:13-23:44: @17[2]: _40 = [move _44]
-23:13-23:44: @17[5]: _39 = &amp;_40
-23:13-23:44: @17[6]: _38 = &amp;(*_39)
-23:13-23:44: @17[7]: _37 = move _38 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-23:13-23:44: @17.Call: _32 = Arguments::new_v1(move _33, move _37) -&gt; [return: bb18, unwind: bb23]
-23:13-23:44: @18.Call: _31 = _print(move _32) -&gt; [return: bb19, unwind: bb23]
-23:13-23:44: @19[6]: _30 = const ()
-21:33-24:10: @19[8]: _6 = const ()">            println!("Result: {}", result);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="22:26-22:43: @15.Call: _29 = might_overflow(const 1_u32) -&gt; [return: bb16, unwind: bb23]
-22:17-22:23: @16[0]: FakeRead(ForLet, _29)
-23:22-23:34: @16[7]: _50 = const main::promoted[0]
-23:22-23:34: @16[8]: _35 = &amp;(*_50)
-23:22-23:34: @16[9]: _34 = &amp;(*_35)
-23:22-23:34: @16[10]: _33 = move _34 as &amp;[&amp;str] (Pointer(Unsize))
-23:36-23:42: @16[18]: _42 = &amp;_29
-23:13-23:44: @16[19]: _41 = (move _42,)
-23:13-23:44: @16[21]: FakeRead(ForMatchedPlace, _41)
-23:13-23:44: @16[23]: _43 = (_41.0: &amp;u32)
-23:13-23:44: @16[26]: _45 = &amp;(*_43)
-23:13-23:44: @16[28]: _46 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-23:13-23:44: @16.Call: _44 = ArgumentV1::new::&lt;u32&gt;(move _45, move _46) -&gt; [return: bb17, unwind: bb23]
-23:13-23:44: @17[2]: _40 = [move _44]
-23:13-23:44: @17[5]: _39 = &amp;_40
-23:13-23:44: @17[6]: _38 = &amp;(*_39)
-23:13-23:44: @17[7]: _37 = move _38 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-23:13-23:44: @17.Call: _32 = Arguments::new_v1(move _33, move _37) -&gt; [return: bb18, unwind: bb23]
-23:13-23:44: @18.Call: _31 = _print(move _32) -&gt; [return: bb19, unwind: bb23]
-23:13-23:44: @19[6]: _30 = const ()
-21:33-24:10: @19[8]: _6 = const ()">        }<span class="annotation">⦉@13,15,16,17,18,19</span></span></span><span><span class="code even" style="--layer: 1" title="24:10-24:10: @14.Goto: goto -&gt; bb20"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span><span><span class="code odd" style="--layer: 1" title="24:10-24:10: @20.Goto: goto -&gt; bb21"><span class="annotation">@20⦊</span>‸<span class="annotation">⦉@20</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="25:9-25:23: @21[2]: _47 = CheckedSub(_1, const 1_i32)
-25:9-25:23: @22[0]: _1 = move (_47.0: i32)"><span class="annotation">@21,22⦊</span>countdown -= 1<span class="annotation">⦉@21,22</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="27:8-27:10: @4[4]: _49 = ()
-27:5-27:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _49)
-28:2-28:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="27:8-27:10: @4[4]: _49 = ()
-27:5-27:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _49)
-28:2-28:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.overflow/overflow.might_overflow.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.overflow/overflow.might_overflow.-------.InstrumentCoverage.0.html
deleted file mode 100644
index b1dbc40ee206d..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.overflow/overflow.might_overflow.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,397 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.might_overflow.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>overflow.might_overflow - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
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-        color: #4444ff;
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-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn might_overflow(to_add: u32) -&gt; u32 {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="5:8-5:14: @0[3]: _4 = _1
-5:8-5:18: @0[4]: _3 = Gt(move _4, const 5_u32)
-5:8-5:18: @0[6]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0⦊</span>to_add &gt; 5<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="6:18-6:47: @3[6]: _61 = const might_overflow::promoted[4]
-6:18-6:47: @3[7]: _10 = &amp;(*_61)
-6:18-6:47: @3[8]: _9 = &amp;(*_10)
-6:18-6:47: @3[9]: _8 = move _9 as &amp;[&amp;str] (Pointer(Unsize))
-6:9-6:49: @3[15]: _16 = ()
-6:9-6:49: @3[16]: FakeRead(ForMatchedPlace, _16)
-6:9-6:49: @3[17]: _60 = const might_overflow::promoted[3]
-6:9-6:49: @3[18]: _14 = &amp;(*_60)
-6:9-6:49: @3[19]: _13 = &amp;(*_14)
-6:9-6:49: @3[20]: _12 = move _13 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-6:9-6:49: @3.Call: _7 = Arguments::new_v1(move _8, move _12) -&gt; [return: bb4, unwind: bb15]
-6:9-6:49: @4.Call: _6 = _print(move _7) -&gt; [return: bb5, unwind: bb15]
-6:9-6:49: @5[5]: _5 = const ()
-5:19-7:6: @5[7]: _2 = const ()
-7:6-7:6: @5.Goto: goto -&gt; bb6"><span class="annotation">@1,3,4,5⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="6:18-6:47: @3[6]: _61 = const might_overflow::promoted[4]
-6:18-6:47: @3[7]: _10 = &amp;(*_61)
-6:18-6:47: @3[8]: _9 = &amp;(*_10)
-6:18-6:47: @3[9]: _8 = move _9 as &amp;[&amp;str] (Pointer(Unsize))
-6:9-6:49: @3[15]: _16 = ()
-6:9-6:49: @3[16]: FakeRead(ForMatchedPlace, _16)
-6:9-6:49: @3[17]: _60 = const might_overflow::promoted[3]
-6:9-6:49: @3[18]: _14 = &amp;(*_60)
-6:9-6:49: @3[19]: _13 = &amp;(*_14)
-6:9-6:49: @3[20]: _12 = move _13 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-6:9-6:49: @3.Call: _7 = Arguments::new_v1(move _8, move _12) -&gt; [return: bb4, unwind: bb15]
-6:9-6:49: @4.Call: _6 = _print(move _7) -&gt; [return: bb5, unwind: bb15]
-6:9-6:49: @5[5]: _5 = const ()
-5:19-7:6: @5[7]: _2 = const ()
-7:6-7:6: @5.Goto: goto -&gt; bb6">        println!("this will probably overflow");</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="6:18-6:47: @3[6]: _61 = const might_overflow::promoted[4]
-6:18-6:47: @3[7]: _10 = &amp;(*_61)
-6:18-6:47: @3[8]: _9 = &amp;(*_10)
-6:18-6:47: @3[9]: _8 = move _9 as &amp;[&amp;str] (Pointer(Unsize))
-6:9-6:49: @3[15]: _16 = ()
-6:9-6:49: @3[16]: FakeRead(ForMatchedPlace, _16)
-6:9-6:49: @3[17]: _60 = const might_overflow::promoted[3]
-6:9-6:49: @3[18]: _14 = &amp;(*_60)
-6:9-6:49: @3[19]: _13 = &amp;(*_14)
-6:9-6:49: @3[20]: _12 = move _13 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-6:9-6:49: @3.Call: _7 = Arguments::new_v1(move _8, move _12) -&gt; [return: bb4, unwind: bb15]
-6:9-6:49: @4.Call: _6 = _print(move _7) -&gt; [return: bb5, unwind: bb15]
-6:9-6:49: @5[5]: _5 = const ()
-5:19-7:6: @5[7]: _2 = const ()
-7:6-7:6: @5.Goto: goto -&gt; bb6">    }<span class="annotation">⦉@1,3,4,5</span></span></span><span><span class="code even" style="--layer: 1" title="7:6-7:6: @2.Goto: goto -&gt; bb6"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="8:18-8:30: @6[3]: _18 = CheckedSub(const core::num::&lt;impl u32&gt;::MAX, const 5_u32)
-8:18-8:30: @7[0]: _17 = move (_18.0: u32)
-8:9-8:15: @7[1]: FakeRead(ForLet, _17)
-9:14-9:38: @7[8]: _59 = const might_overflow::promoted[2]
-9:14-9:38: @7[9]: _24 = &amp;(*_59)
-9:14-9:38: @7[10]: _23 = &amp;(*_24)
-9:14-9:38: @7[11]: _22 = move _23 as &amp;[&amp;str] (Pointer(Unsize))
-9:40-9:46: @7[19]: _31 = &amp;_17
-9:48-9:54: @7[21]: _32 = &amp;_1
-9:5-9:56: @7[22]: _30 = (move _31, move _32)
-9:5-9:56: @7[25]: FakeRead(ForMatchedPlace, _30)
-9:5-9:56: @7[27]: _33 = (_30.0: &amp;u32)
-9:5-9:56: @7[29]: _34 = (_30.1: &amp;u32)
-9:5-9:56: @7[32]: _36 = &amp;(*_33)
-9:5-9:56: @7[34]: _37 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @7.Call: _35 = ArgumentV1::new::&lt;u32&gt;(move _36, move _37) -&gt; [return: bb8, unwind: bb15]
-9:5-9:56: @8[4]: _39 = &amp;(*_34)
-9:5-9:56: @8[6]: _40 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @8.Call: _38 = ArgumentV1::new::&lt;u32&gt;(move _39, move _40) -&gt; [return: bb9, unwind: bb15]
-9:5-9:56: @9[2]: _29 = [move _35, move _38]
-9:5-9:56: @9[7]: _28 = &amp;_29
-9:5-9:56: @9[8]: _27 = &amp;(*_28)
-9:5-9:56: @9[9]: _26 = move _27 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:5-9:56: @9.Call: _21 = Arguments::new_v1(move _22, move _26) -&gt; [return: bb10, unwind: bb15]
-9:5-9:56: @10.Call: _20 = _print(move _21) -&gt; [return: bb11, unwind: bb15]
-9:5-9:56: @11[6]: _19 = const ()
-10:18-10:24: @11[10]: _42 = _1
-10:27-10:33: @11[12]: _43 = _17
-10:18-10:33: @11[13]: _44 = CheckedAdd(_42, _43)
-10:18-10:33: @12[0]: _41 = move (_44.0: u32)
-10:9-10:15: @12[3]: FakeRead(ForLet, _41)
-11:14-11:47: @12[10]: _58 = const might_overflow::promoted[1]
-11:14-11:47: @12[11]: _50 = &amp;(*_58)
-11:14-11:47: @12[12]: _49 = &amp;(*_50)
-11:14-11:47: @12[13]: _48 = move _49 as &amp;[&amp;str] (Pointer(Unsize))
-11:5-11:49: @12[19]: _56 = ()
-11:5-11:49: @12[20]: FakeRead(ForMatchedPlace, _56)
-11:5-11:49: @12[21]: _57 = const might_overflow::promoted[0]
-11:5-11:49: @12[22]: _54 = &amp;(*_57)
-11:5-11:49: @12[23]: _53 = &amp;(*_54)
-11:5-11:49: @12[24]: _52 = move _53 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-11:49: @12.Call: _47 = Arguments::new_v1(move _48, move _52) -&gt; [return: bb13, unwind: bb15]
-11:5-11:49: @13.Call: _46 = _print(move _47) -&gt; [return: bb14, unwind: bb15]
-11:5-11:49: @14[5]: _45 = const ()
-12:5-12:11: @14[7]: _0 = _41
-13:2-13:2: @14.Return: return"><span class="annotation">@6,7,8,9,10,11,12,13,14⦊</span>add_to = u32::MAX - 5;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="8:18-8:30: @6[3]: _18 = CheckedSub(const core::num::&lt;impl u32&gt;::MAX, const 5_u32)
-8:18-8:30: @7[0]: _17 = move (_18.0: u32)
-8:9-8:15: @7[1]: FakeRead(ForLet, _17)
-9:14-9:38: @7[8]: _59 = const might_overflow::promoted[2]
-9:14-9:38: @7[9]: _24 = &amp;(*_59)
-9:14-9:38: @7[10]: _23 = &amp;(*_24)
-9:14-9:38: @7[11]: _22 = move _23 as &amp;[&amp;str] (Pointer(Unsize))
-9:40-9:46: @7[19]: _31 = &amp;_17
-9:48-9:54: @7[21]: _32 = &amp;_1
-9:5-9:56: @7[22]: _30 = (move _31, move _32)
-9:5-9:56: @7[25]: FakeRead(ForMatchedPlace, _30)
-9:5-9:56: @7[27]: _33 = (_30.0: &amp;u32)
-9:5-9:56: @7[29]: _34 = (_30.1: &amp;u32)
-9:5-9:56: @7[32]: _36 = &amp;(*_33)
-9:5-9:56: @7[34]: _37 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @7.Call: _35 = ArgumentV1::new::&lt;u32&gt;(move _36, move _37) -&gt; [return: bb8, unwind: bb15]
-9:5-9:56: @8[4]: _39 = &amp;(*_34)
-9:5-9:56: @8[6]: _40 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @8.Call: _38 = ArgumentV1::new::&lt;u32&gt;(move _39, move _40) -&gt; [return: bb9, unwind: bb15]
-9:5-9:56: @9[2]: _29 = [move _35, move _38]
-9:5-9:56: @9[7]: _28 = &amp;_29
-9:5-9:56: @9[8]: _27 = &amp;(*_28)
-9:5-9:56: @9[9]: _26 = move _27 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:5-9:56: @9.Call: _21 = Arguments::new_v1(move _22, move _26) -&gt; [return: bb10, unwind: bb15]
-9:5-9:56: @10.Call: _20 = _print(move _21) -&gt; [return: bb11, unwind: bb15]
-9:5-9:56: @11[6]: _19 = const ()
-10:18-10:24: @11[10]: _42 = _1
-10:27-10:33: @11[12]: _43 = _17
-10:18-10:33: @11[13]: _44 = CheckedAdd(_42, _43)
-10:18-10:33: @12[0]: _41 = move (_44.0: u32)
-10:9-10:15: @12[3]: FakeRead(ForLet, _41)
-11:14-11:47: @12[10]: _58 = const might_overflow::promoted[1]
-11:14-11:47: @12[11]: _50 = &amp;(*_58)
-11:14-11:47: @12[12]: _49 = &amp;(*_50)
-11:14-11:47: @12[13]: _48 = move _49 as &amp;[&amp;str] (Pointer(Unsize))
-11:5-11:49: @12[19]: _56 = ()
-11:5-11:49: @12[20]: FakeRead(ForMatchedPlace, _56)
-11:5-11:49: @12[21]: _57 = const might_overflow::promoted[0]
-11:5-11:49: @12[22]: _54 = &amp;(*_57)
-11:5-11:49: @12[23]: _53 = &amp;(*_54)
-11:5-11:49: @12[24]: _52 = move _53 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-11:49: @12.Call: _47 = Arguments::new_v1(move _48, move _52) -&gt; [return: bb13, unwind: bb15]
-11:5-11:49: @13.Call: _46 = _print(move _47) -&gt; [return: bb14, unwind: bb15]
-11:5-11:49: @14[5]: _45 = const ()
-12:5-12:11: @14[7]: _0 = _41
-13:2-13:2: @14.Return: return">    println!("does {} + {} overflow?", add_to, to_add);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="8:18-8:30: @6[3]: _18 = CheckedSub(const core::num::&lt;impl u32&gt;::MAX, const 5_u32)
-8:18-8:30: @7[0]: _17 = move (_18.0: u32)
-8:9-8:15: @7[1]: FakeRead(ForLet, _17)
-9:14-9:38: @7[8]: _59 = const might_overflow::promoted[2]
-9:14-9:38: @7[9]: _24 = &amp;(*_59)
-9:14-9:38: @7[10]: _23 = &amp;(*_24)
-9:14-9:38: @7[11]: _22 = move _23 as &amp;[&amp;str] (Pointer(Unsize))
-9:40-9:46: @7[19]: _31 = &amp;_17
-9:48-9:54: @7[21]: _32 = &amp;_1
-9:5-9:56: @7[22]: _30 = (move _31, move _32)
-9:5-9:56: @7[25]: FakeRead(ForMatchedPlace, _30)
-9:5-9:56: @7[27]: _33 = (_30.0: &amp;u32)
-9:5-9:56: @7[29]: _34 = (_30.1: &amp;u32)
-9:5-9:56: @7[32]: _36 = &amp;(*_33)
-9:5-9:56: @7[34]: _37 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @7.Call: _35 = ArgumentV1::new::&lt;u32&gt;(move _36, move _37) -&gt; [return: bb8, unwind: bb15]
-9:5-9:56: @8[4]: _39 = &amp;(*_34)
-9:5-9:56: @8[6]: _40 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @8.Call: _38 = ArgumentV1::new::&lt;u32&gt;(move _39, move _40) -&gt; [return: bb9, unwind: bb15]
-9:5-9:56: @9[2]: _29 = [move _35, move _38]
-9:5-9:56: @9[7]: _28 = &amp;_29
-9:5-9:56: @9[8]: _27 = &amp;(*_28)
-9:5-9:56: @9[9]: _26 = move _27 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:5-9:56: @9.Call: _21 = Arguments::new_v1(move _22, move _26) -&gt; [return: bb10, unwind: bb15]
-9:5-9:56: @10.Call: _20 = _print(move _21) -&gt; [return: bb11, unwind: bb15]
-9:5-9:56: @11[6]: _19 = const ()
-10:18-10:24: @11[10]: _42 = _1
-10:27-10:33: @11[12]: _43 = _17
-10:18-10:33: @11[13]: _44 = CheckedAdd(_42, _43)
-10:18-10:33: @12[0]: _41 = move (_44.0: u32)
-10:9-10:15: @12[3]: FakeRead(ForLet, _41)
-11:14-11:47: @12[10]: _58 = const might_overflow::promoted[1]
-11:14-11:47: @12[11]: _50 = &amp;(*_58)
-11:14-11:47: @12[12]: _49 = &amp;(*_50)
-11:14-11:47: @12[13]: _48 = move _49 as &amp;[&amp;str] (Pointer(Unsize))
-11:5-11:49: @12[19]: _56 = ()
-11:5-11:49: @12[20]: FakeRead(ForMatchedPlace, _56)
-11:5-11:49: @12[21]: _57 = const might_overflow::promoted[0]
-11:5-11:49: @12[22]: _54 = &amp;(*_57)
-11:5-11:49: @12[23]: _53 = &amp;(*_54)
-11:5-11:49: @12[24]: _52 = move _53 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-11:49: @12.Call: _47 = Arguments::new_v1(move _48, move _52) -&gt; [return: bb13, unwind: bb15]
-11:5-11:49: @13.Call: _46 = _print(move _47) -&gt; [return: bb14, unwind: bb15]
-11:5-11:49: @14[5]: _45 = const ()
-12:5-12:11: @14[7]: _0 = _41
-13:2-13:2: @14.Return: return">    let result = to_add + add_to;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="8:18-8:30: @6[3]: _18 = CheckedSub(const core::num::&lt;impl u32&gt;::MAX, const 5_u32)
-8:18-8:30: @7[0]: _17 = move (_18.0: u32)
-8:9-8:15: @7[1]: FakeRead(ForLet, _17)
-9:14-9:38: @7[8]: _59 = const might_overflow::promoted[2]
-9:14-9:38: @7[9]: _24 = &amp;(*_59)
-9:14-9:38: @7[10]: _23 = &amp;(*_24)
-9:14-9:38: @7[11]: _22 = move _23 as &amp;[&amp;str] (Pointer(Unsize))
-9:40-9:46: @7[19]: _31 = &amp;_17
-9:48-9:54: @7[21]: _32 = &amp;_1
-9:5-9:56: @7[22]: _30 = (move _31, move _32)
-9:5-9:56: @7[25]: FakeRead(ForMatchedPlace, _30)
-9:5-9:56: @7[27]: _33 = (_30.0: &amp;u32)
-9:5-9:56: @7[29]: _34 = (_30.1: &amp;u32)
-9:5-9:56: @7[32]: _36 = &amp;(*_33)
-9:5-9:56: @7[34]: _37 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @7.Call: _35 = ArgumentV1::new::&lt;u32&gt;(move _36, move _37) -&gt; [return: bb8, unwind: bb15]
-9:5-9:56: @8[4]: _39 = &amp;(*_34)
-9:5-9:56: @8[6]: _40 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @8.Call: _38 = ArgumentV1::new::&lt;u32&gt;(move _39, move _40) -&gt; [return: bb9, unwind: bb15]
-9:5-9:56: @9[2]: _29 = [move _35, move _38]
-9:5-9:56: @9[7]: _28 = &amp;_29
-9:5-9:56: @9[8]: _27 = &amp;(*_28)
-9:5-9:56: @9[9]: _26 = move _27 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:5-9:56: @9.Call: _21 = Arguments::new_v1(move _22, move _26) -&gt; [return: bb10, unwind: bb15]
-9:5-9:56: @10.Call: _20 = _print(move _21) -&gt; [return: bb11, unwind: bb15]
-9:5-9:56: @11[6]: _19 = const ()
-10:18-10:24: @11[10]: _42 = _1
-10:27-10:33: @11[12]: _43 = _17
-10:18-10:33: @11[13]: _44 = CheckedAdd(_42, _43)
-10:18-10:33: @12[0]: _41 = move (_44.0: u32)
-10:9-10:15: @12[3]: FakeRead(ForLet, _41)
-11:14-11:47: @12[10]: _58 = const might_overflow::promoted[1]
-11:14-11:47: @12[11]: _50 = &amp;(*_58)
-11:14-11:47: @12[12]: _49 = &amp;(*_50)
-11:14-11:47: @12[13]: _48 = move _49 as &amp;[&amp;str] (Pointer(Unsize))
-11:5-11:49: @12[19]: _56 = ()
-11:5-11:49: @12[20]: FakeRead(ForMatchedPlace, _56)
-11:5-11:49: @12[21]: _57 = const might_overflow::promoted[0]
-11:5-11:49: @12[22]: _54 = &amp;(*_57)
-11:5-11:49: @12[23]: _53 = &amp;(*_54)
-11:5-11:49: @12[24]: _52 = move _53 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-11:49: @12.Call: _47 = Arguments::new_v1(move _48, move _52) -&gt; [return: bb13, unwind: bb15]
-11:5-11:49: @13.Call: _46 = _print(move _47) -&gt; [return: bb14, unwind: bb15]
-11:5-11:49: @14[5]: _45 = const ()
-12:5-12:11: @14[7]: _0 = _41
-13:2-13:2: @14.Return: return">    println!("continuing after overflow check");</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="8:18-8:30: @6[3]: _18 = CheckedSub(const core::num::&lt;impl u32&gt;::MAX, const 5_u32)
-8:18-8:30: @7[0]: _17 = move (_18.0: u32)
-8:9-8:15: @7[1]: FakeRead(ForLet, _17)
-9:14-9:38: @7[8]: _59 = const might_overflow::promoted[2]
-9:14-9:38: @7[9]: _24 = &amp;(*_59)
-9:14-9:38: @7[10]: _23 = &amp;(*_24)
-9:14-9:38: @7[11]: _22 = move _23 as &amp;[&amp;str] (Pointer(Unsize))
-9:40-9:46: @7[19]: _31 = &amp;_17
-9:48-9:54: @7[21]: _32 = &amp;_1
-9:5-9:56: @7[22]: _30 = (move _31, move _32)
-9:5-9:56: @7[25]: FakeRead(ForMatchedPlace, _30)
-9:5-9:56: @7[27]: _33 = (_30.0: &amp;u32)
-9:5-9:56: @7[29]: _34 = (_30.1: &amp;u32)
-9:5-9:56: @7[32]: _36 = &amp;(*_33)
-9:5-9:56: @7[34]: _37 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @7.Call: _35 = ArgumentV1::new::&lt;u32&gt;(move _36, move _37) -&gt; [return: bb8, unwind: bb15]
-9:5-9:56: @8[4]: _39 = &amp;(*_34)
-9:5-9:56: @8[6]: _40 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @8.Call: _38 = ArgumentV1::new::&lt;u32&gt;(move _39, move _40) -&gt; [return: bb9, unwind: bb15]
-9:5-9:56: @9[2]: _29 = [move _35, move _38]
-9:5-9:56: @9[7]: _28 = &amp;_29
-9:5-9:56: @9[8]: _27 = &amp;(*_28)
-9:5-9:56: @9[9]: _26 = move _27 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:5-9:56: @9.Call: _21 = Arguments::new_v1(move _22, move _26) -&gt; [return: bb10, unwind: bb15]
-9:5-9:56: @10.Call: _20 = _print(move _21) -&gt; [return: bb11, unwind: bb15]
-9:5-9:56: @11[6]: _19 = const ()
-10:18-10:24: @11[10]: _42 = _1
-10:27-10:33: @11[12]: _43 = _17
-10:18-10:33: @11[13]: _44 = CheckedAdd(_42, _43)
-10:18-10:33: @12[0]: _41 = move (_44.0: u32)
-10:9-10:15: @12[3]: FakeRead(ForLet, _41)
-11:14-11:47: @12[10]: _58 = const might_overflow::promoted[1]
-11:14-11:47: @12[11]: _50 = &amp;(*_58)
-11:14-11:47: @12[12]: _49 = &amp;(*_50)
-11:14-11:47: @12[13]: _48 = move _49 as &amp;[&amp;str] (Pointer(Unsize))
-11:5-11:49: @12[19]: _56 = ()
-11:5-11:49: @12[20]: FakeRead(ForMatchedPlace, _56)
-11:5-11:49: @12[21]: _57 = const might_overflow::promoted[0]
-11:5-11:49: @12[22]: _54 = &amp;(*_57)
-11:5-11:49: @12[23]: _53 = &amp;(*_54)
-11:5-11:49: @12[24]: _52 = move _53 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-11:49: @12.Call: _47 = Arguments::new_v1(move _48, move _52) -&gt; [return: bb13, unwind: bb15]
-11:5-11:49: @13.Call: _46 = _print(move _47) -&gt; [return: bb14, unwind: bb15]
-11:5-11:49: @14[5]: _45 = const ()
-12:5-12:11: @14[7]: _0 = _41
-13:2-13:2: @14.Return: return">    result</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="8:18-8:30: @6[3]: _18 = CheckedSub(const core::num::&lt;impl u32&gt;::MAX, const 5_u32)
-8:18-8:30: @7[0]: _17 = move (_18.0: u32)
-8:9-8:15: @7[1]: FakeRead(ForLet, _17)
-9:14-9:38: @7[8]: _59 = const might_overflow::promoted[2]
-9:14-9:38: @7[9]: _24 = &amp;(*_59)
-9:14-9:38: @7[10]: _23 = &amp;(*_24)
-9:14-9:38: @7[11]: _22 = move _23 as &amp;[&amp;str] (Pointer(Unsize))
-9:40-9:46: @7[19]: _31 = &amp;_17
-9:48-9:54: @7[21]: _32 = &amp;_1
-9:5-9:56: @7[22]: _30 = (move _31, move _32)
-9:5-9:56: @7[25]: FakeRead(ForMatchedPlace, _30)
-9:5-9:56: @7[27]: _33 = (_30.0: &amp;u32)
-9:5-9:56: @7[29]: _34 = (_30.1: &amp;u32)
-9:5-9:56: @7[32]: _36 = &amp;(*_33)
-9:5-9:56: @7[34]: _37 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @7.Call: _35 = ArgumentV1::new::&lt;u32&gt;(move _36, move _37) -&gt; [return: bb8, unwind: bb15]
-9:5-9:56: @8[4]: _39 = &amp;(*_34)
-9:5-9:56: @8[6]: _40 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-9:5-9:56: @8.Call: _38 = ArgumentV1::new::&lt;u32&gt;(move _39, move _40) -&gt; [return: bb9, unwind: bb15]
-9:5-9:56: @9[2]: _29 = [move _35, move _38]
-9:5-9:56: @9[7]: _28 = &amp;_29
-9:5-9:56: @9[8]: _27 = &amp;(*_28)
-9:5-9:56: @9[9]: _26 = move _27 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:5-9:56: @9.Call: _21 = Arguments::new_v1(move _22, move _26) -&gt; [return: bb10, unwind: bb15]
-9:5-9:56: @10.Call: _20 = _print(move _21) -&gt; [return: bb11, unwind: bb15]
-9:5-9:56: @11[6]: _19 = const ()
-10:18-10:24: @11[10]: _42 = _1
-10:27-10:33: @11[12]: _43 = _17
-10:18-10:33: @11[13]: _44 = CheckedAdd(_42, _43)
-10:18-10:33: @12[0]: _41 = move (_44.0: u32)
-10:9-10:15: @12[3]: FakeRead(ForLet, _41)
-11:14-11:47: @12[10]: _58 = const might_overflow::promoted[1]
-11:14-11:47: @12[11]: _50 = &amp;(*_58)
-11:14-11:47: @12[12]: _49 = &amp;(*_50)
-11:14-11:47: @12[13]: _48 = move _49 as &amp;[&amp;str] (Pointer(Unsize))
-11:5-11:49: @12[19]: _56 = ()
-11:5-11:49: @12[20]: FakeRead(ForMatchedPlace, _56)
-11:5-11:49: @12[21]: _57 = const might_overflow::promoted[0]
-11:5-11:49: @12[22]: _54 = &amp;(*_57)
-11:5-11:49: @12[23]: _53 = &amp;(*_54)
-11:5-11:49: @12[24]: _52 = move _53 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-11:49: @12.Call: _47 = Arguments::new_v1(move _48, move _52) -&gt; [return: bb13, unwind: bb15]
-11:5-11:49: @13.Call: _46 = _print(move _47) -&gt; [return: bb14, unwind: bb15]
-11:5-11:49: @14[5]: _45 = const ()
-12:5-12:11: @14[7]: _0 = _41
-13:2-13:2: @14.Return: return">}<span class="annotation">⦉@6,7,8,9,10,11,12,13,14</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.panic_unwind/panic_unwind.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.panic_unwind/panic_unwind.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index ebacd80c37dea..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.panic_unwind/panic_unwind.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,103 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>panic_unwind.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
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-    .even {
-        background-color: #ee7756;
-        color: #551133;
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-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 12"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="14:25-14:27: @0[1]: _1 = const 10_i32
-14:9-14:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="15:11-15:20: @2[2]: _5 = _1
-15:11-15:24: @2[3]: _4 = Gt(move _5, const 0_i32)
-15:11-15:24: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown &gt; 0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="16:12-16:21: @5[3]: _8 = _1
-16:12-16:26: @5[4]: _7 = Eq(move _8, const 1_i32)
-16:12-16:26: @5[6]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@3,5⦊</span>countdown == 1<span class="annotation">⦉@3,5</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="17:13-17:30: @8.Call: _9 = might_panic(const true) -&gt; [return: bb9, unwind: bb17]
-16:27-18:10: @9[1]: _6 = const ()"><span class="annotation">@6,8,9⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="17:13-17:30: @8.Call: _9 = might_panic(const true) -&gt; [return: bb9, unwind: bb17]
-16:27-18:10: @9[1]: _6 = const ()">            might_panic(true);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="17:13-17:30: @8.Call: _9 = might_panic(const true) -&gt; [return: bb9, unwind: bb17]
-16:27-18:10: @9[1]: _6 = const ()">        }<span class="annotation">⦉@6,8,9</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code even" style="--layer: 1" title="18:19-18:28: @7[2]: _11 = _1
-18:19-18:32: @7[3]: _10 = Lt(move _11, const 5_i32)
-18:19-18:32: @7[5]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@7⦊</span>countdown &lt; 5<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="19:13-19:31: @12.Call: _12 = might_panic(const false) -&gt; [return: bb13, unwind: bb17]
-18:33-20:10: @13[1]: _6 = const ()"><span class="annotation">@10,12,13⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="19:13-19:31: @12.Call: _12 = might_panic(const false) -&gt; [return: bb13, unwind: bb17]
-18:33-20:10: @13[1]: _6 = const ()">            might_panic(false);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="19:13-19:31: @12.Call: _12 = might_panic(const false) -&gt; [return: bb13, unwind: bb17]
-18:33-20:10: @13[1]: _6 = const ()">        }<span class="annotation">⦉@10,12,13</span></span></span><span><span class="code even" style="--layer: 1" title="20:10-20:10: @11.Goto: goto -&gt; bb14"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span><span><span class="code odd" style="--layer: 1" title="20:10-20:10: @14.Goto: goto -&gt; bb15"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="21:9-21:23: @15[2]: _13 = CheckedSub(_1, const 1_i32)
-21:9-21:23: @16[0]: _1 = move (_13.0: i32)"><span class="annotation">@15,16⦊</span>countdown -= 1<span class="annotation">⦉@15,16</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="23:8-23:10: @4[4]: _15 = ()
-23:5-23:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)
-24:2-24:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:8-23:10: @4[4]: _15 = ()
-23:5-23:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)
-24:2-24:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.panic_unwind/panic_unwind.might_panic.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.panic_unwind/panic_unwind.might_panic.-------.InstrumentCoverage.0.html
deleted file mode 100644
index d6002e70af277..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.panic_unwind/panic_unwind.might_panic.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,164 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.might_panic.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>panic_unwind.might_panic - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn might_panic(should_panic: bool) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="5:8-5:20: @0[1]: _2 = _1
-5:8-5:20: @0[2]: FakeRead(ForMatchedPlace, _2)"><span class="annotation">@0⦊</span>should_panic<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="6:18-6:32: @3[6]: _33 = const might_panic::promoted[3]
-6:18-6:32: @3[7]: _9 = &amp;(*_33)
-6:18-6:32: @3[8]: _8 = &amp;(*_9)
-6:18-6:32: @3[9]: _7 = move _8 as &amp;[&amp;str] (Pointer(Unsize))
-6:9-6:34: @3[15]: _15 = ()
-6:9-6:34: @3[16]: FakeRead(ForMatchedPlace, _15)
-6:9-6:34: @3[17]: _32 = const might_panic::promoted[2]
-6:9-6:34: @3[18]: _13 = &amp;(*_32)
-6:9-6:34: @3[19]: _12 = &amp;(*_13)
-6:9-6:34: @3[20]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-6:9-6:34: @3.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb4, unwind: bb8]
-6:9-6:34: @4.Call: _5 = _print(move _6) -&gt; [return: bb5, unwind: bb8]
-6:9-6:34: @5[5]: _4 = const ()
-7:9-7:26: @5.Call: begin_panic::&lt;&amp;str&gt;(const &quot;panics&quot;) -&gt; bb8"><span class="annotation">@1,3,4,5⦊</span>println!("panicking...");</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="6:18-6:32: @3[6]: _33 = const might_panic::promoted[3]
-6:18-6:32: @3[7]: _9 = &amp;(*_33)
-6:18-6:32: @3[8]: _8 = &amp;(*_9)
-6:18-6:32: @3[9]: _7 = move _8 as &amp;[&amp;str] (Pointer(Unsize))
-6:9-6:34: @3[15]: _15 = ()
-6:9-6:34: @3[16]: FakeRead(ForMatchedPlace, _15)
-6:9-6:34: @3[17]: _32 = const might_panic::promoted[2]
-6:9-6:34: @3[18]: _13 = &amp;(*_32)
-6:9-6:34: @3[19]: _12 = &amp;(*_13)
-6:9-6:34: @3[20]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-6:9-6:34: @3.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb4, unwind: bb8]
-6:9-6:34: @4.Call: _5 = _print(move _6) -&gt; [return: bb5, unwind: bb8]
-6:9-6:34: @5[5]: _4 = const ()
-7:9-7:26: @5.Call: begin_panic::&lt;&amp;str&gt;(const &quot;panics&quot;) -&gt; bb8">        panic!("panics");<span class="annotation">⦉@1,3,4,5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    } else </span><span><span class="code even" style="--layer: 1" title="9:18-9:31: @2[6]: _31 = const might_panic::promoted[1]
-9:18-9:31: @2[7]: _23 = &amp;(*_31)
-9:18-9:31: @2[8]: _22 = &amp;(*_23)
-9:18-9:31: @2[9]: _21 = move _22 as &amp;[&amp;str] (Pointer(Unsize))
-9:9-9:33: @2[15]: _29 = ()
-9:9-9:33: @2[16]: FakeRead(ForMatchedPlace, _29)
-9:9-9:33: @2[17]: _30 = const might_panic::promoted[0]
-9:9-9:33: @2[18]: _27 = &amp;(*_30)
-9:9-9:33: @2[19]: _26 = &amp;(*_27)
-9:9-9:33: @2[20]: _25 = move _26 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:9-9:33: @2.Call: _20 = Arguments::new_v1(move _21, move _25) -&gt; [return: bb6, unwind: bb8]
-9:9-9:33: @6.Call: _19 = _print(move _20) -&gt; [return: bb7, unwind: bb8]
-9:9-9:33: @7[5]: _18 = const ()
-8:12-10:6: @7[7]: _0 = const ()
-11:2-11:2: @7.Return: return"><span class="annotation">@2,6,7⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="9:18-9:31: @2[6]: _31 = const might_panic::promoted[1]
-9:18-9:31: @2[7]: _23 = &amp;(*_31)
-9:18-9:31: @2[8]: _22 = &amp;(*_23)
-9:18-9:31: @2[9]: _21 = move _22 as &amp;[&amp;str] (Pointer(Unsize))
-9:9-9:33: @2[15]: _29 = ()
-9:9-9:33: @2[16]: FakeRead(ForMatchedPlace, _29)
-9:9-9:33: @2[17]: _30 = const might_panic::promoted[0]
-9:9-9:33: @2[18]: _27 = &amp;(*_30)
-9:9-9:33: @2[19]: _26 = &amp;(*_27)
-9:9-9:33: @2[20]: _25 = move _26 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:9-9:33: @2.Call: _20 = Arguments::new_v1(move _21, move _25) -&gt; [return: bb6, unwind: bb8]
-9:9-9:33: @6.Call: _19 = _print(move _20) -&gt; [return: bb7, unwind: bb8]
-9:9-9:33: @7[5]: _18 = const ()
-8:12-10:6: @7[7]: _0 = const ()
-11:2-11:2: @7.Return: return">        println!("Don't Panic");</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="9:18-9:31: @2[6]: _31 = const might_panic::promoted[1]
-9:18-9:31: @2[7]: _23 = &amp;(*_31)
-9:18-9:31: @2[8]: _22 = &amp;(*_23)
-9:18-9:31: @2[9]: _21 = move _22 as &amp;[&amp;str] (Pointer(Unsize))
-9:9-9:33: @2[15]: _29 = ()
-9:9-9:33: @2[16]: FakeRead(ForMatchedPlace, _29)
-9:9-9:33: @2[17]: _30 = const might_panic::promoted[0]
-9:9-9:33: @2[18]: _27 = &amp;(*_30)
-9:9-9:33: @2[19]: _26 = &amp;(*_27)
-9:9-9:33: @2[20]: _25 = move _26 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:9-9:33: @2.Call: _20 = Arguments::new_v1(move _21, move _25) -&gt; [return: bb6, unwind: bb8]
-9:9-9:33: @6.Call: _19 = _print(move _20) -&gt; [return: bb7, unwind: bb8]
-9:9-9:33: @7[5]: _18 = const ()
-8:12-10:6: @7[7]: _0 = const ()
-11:2-11:2: @7.Return: return">    }</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="9:18-9:31: @2[6]: _31 = const might_panic::promoted[1]
-9:18-9:31: @2[7]: _23 = &amp;(*_31)
-9:18-9:31: @2[8]: _22 = &amp;(*_23)
-9:18-9:31: @2[9]: _21 = move _22 as &amp;[&amp;str] (Pointer(Unsize))
-9:9-9:33: @2[15]: _29 = ()
-9:9-9:33: @2[16]: FakeRead(ForMatchedPlace, _29)
-9:9-9:33: @2[17]: _30 = const might_panic::promoted[0]
-9:9-9:33: @2[18]: _27 = &amp;(*_30)
-9:9-9:33: @2[19]: _26 = &amp;(*_27)
-9:9-9:33: @2[20]: _25 = move _26 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-9:9-9:33: @2.Call: _20 = Arguments::new_v1(move _21, move _25) -&gt; [return: bb6, unwind: bb8]
-9:9-9:33: @6.Call: _19 = _print(move _20) -&gt; [return: bb7, unwind: bb8]
-9:9-9:33: @7[5]: _18 = const ()
-8:12-10:6: @7[7]: _0 = const ()
-11:2-11:2: @7.Return: return">}<span class="annotation">⦉@2,6,7</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 0c6d81a18b14a..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,295 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>partial_eq.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 20"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
-22:9-22:22: @1[0]: FakeRead(ForLet, _1)
-23:25-23:46: @1.Call: _2 = Version::new(const 3_usize, const 3_usize, const 0_usize) -&gt; [return: bb2, unwind: bb9]
-23:9-23:22: @2[0]: FakeRead(ForLet, _2)
-25:14-25:32: @2[7]: _33 = const main::promoted[0]
-25:14-25:32: @2[8]: _8 = &amp;(*_33)
-25:14-25:32: @2[9]: _7 = &amp;(*_8)
-25:14-25:32: @2[10]: _6 = move _7 as &amp;[&amp;str] (Pointer(Unsize))
-25:34-25:47: @2[18]: _15 = &amp;_1
-25:49-25:62: @2[20]: _16 = &amp;_2
-25:64-25:77: @2[24]: _19 = &amp;_1
-25:80-25:93: @2[26]: _20 = &amp;_2
-25:64-25:93: @2.Call: _18 = &lt;Version as PartialOrd&gt;::lt(move _19, move _20) -&gt; [return: bb3, unwind: bb9]
-25:64-25:93: @3[2]: _17 = &amp;_18
-25:5-25:95: @3[3]: _14 = (move _15, move _16, move _17)
-25:5-25:95: @3[7]: FakeRead(ForMatchedPlace, _14)
-25:5-25:95: @3[9]: _21 = (_14.0: &amp;Version)
-25:5-25:95: @3[11]: _22 = (_14.1: &amp;Version)
-25:5-25:95: @3[13]: _23 = (_14.2: &amp;bool)
-25:5-25:95: @3[16]: _25 = &amp;(*_21)
-25:5-25:95: @3[18]: _26 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @3.Call: _24 = ArgumentV1::new::&lt;Version&gt;(move _25, move _26) -&gt; [return: bb4, unwind: bb9]
-25:5-25:95: @4[4]: _28 = &amp;(*_22)
-25:5-25:95: @4[6]: _29 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @4.Call: _27 = ArgumentV1::new::&lt;Version&gt;(move _28, move _29) -&gt; [return: bb5, unwind: bb9]
-25:5-25:95: @5[4]: _31 = &amp;(*_23)
-25:5-25:95: @5[6]: _32 = &lt;bool as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r bool, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @5.Call: _30 = ArgumentV1::new::&lt;bool&gt;(move _31, move _32) -&gt; [return: bb6, unwind: bb9]
-25:5-25:95: @6[2]: _13 = [move _24, move _27, move _30]
-25:5-25:95: @6[9]: _12 = &amp;_13
-25:5-25:95: @6[10]: _11 = &amp;(*_12)
-25:5-25:95: @6[11]: _10 = move _11 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-25:5-25:95: @6.Call: _5 = Arguments::new_v1(move _6, move _10) -&gt; [return: bb7, unwind: bb9]
-25:5-25:95: @7.Call: _4 = _print(move _5) -&gt; [return: bb8, unwind: bb9]
-25:5-25:95: @8[7]: _3 = const ()
-21:11-26:2: @8[9]: _0 = const ()
-26:2-26:2: @8.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
-22:9-22:22: @1[0]: FakeRead(ForLet, _1)
-23:25-23:46: @1.Call: _2 = Version::new(const 3_usize, const 3_usize, const 0_usize) -&gt; [return: bb2, unwind: bb9]
-23:9-23:22: @2[0]: FakeRead(ForLet, _2)
-25:14-25:32: @2[7]: _33 = const main::promoted[0]
-25:14-25:32: @2[8]: _8 = &amp;(*_33)
-25:14-25:32: @2[9]: _7 = &amp;(*_8)
-25:14-25:32: @2[10]: _6 = move _7 as &amp;[&amp;str] (Pointer(Unsize))
-25:34-25:47: @2[18]: _15 = &amp;_1
-25:49-25:62: @2[20]: _16 = &amp;_2
-25:64-25:77: @2[24]: _19 = &amp;_1
-25:80-25:93: @2[26]: _20 = &amp;_2
-25:64-25:93: @2.Call: _18 = &lt;Version as PartialOrd&gt;::lt(move _19, move _20) -&gt; [return: bb3, unwind: bb9]
-25:64-25:93: @3[2]: _17 = &amp;_18
-25:5-25:95: @3[3]: _14 = (move _15, move _16, move _17)
-25:5-25:95: @3[7]: FakeRead(ForMatchedPlace, _14)
-25:5-25:95: @3[9]: _21 = (_14.0: &amp;Version)
-25:5-25:95: @3[11]: _22 = (_14.1: &amp;Version)
-25:5-25:95: @3[13]: _23 = (_14.2: &amp;bool)
-25:5-25:95: @3[16]: _25 = &amp;(*_21)
-25:5-25:95: @3[18]: _26 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @3.Call: _24 = ArgumentV1::new::&lt;Version&gt;(move _25, move _26) -&gt; [return: bb4, unwind: bb9]
-25:5-25:95: @4[4]: _28 = &amp;(*_22)
-25:5-25:95: @4[6]: _29 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @4.Call: _27 = ArgumentV1::new::&lt;Version&gt;(move _28, move _29) -&gt; [return: bb5, unwind: bb9]
-25:5-25:95: @5[4]: _31 = &amp;(*_23)
-25:5-25:95: @5[6]: _32 = &lt;bool as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r bool, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @5.Call: _30 = ArgumentV1::new::&lt;bool&gt;(move _31, move _32) -&gt; [return: bb6, unwind: bb9]
-25:5-25:95: @6[2]: _13 = [move _24, move _27, move _30]
-25:5-25:95: @6[9]: _12 = &amp;_13
-25:5-25:95: @6[10]: _11 = &amp;(*_12)
-25:5-25:95: @6[11]: _10 = move _11 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-25:5-25:95: @6.Call: _5 = Arguments::new_v1(move _6, move _10) -&gt; [return: bb7, unwind: bb9]
-25:5-25:95: @7.Call: _4 = _print(move _5) -&gt; [return: bb8, unwind: bb9]
-25:5-25:95: @8[7]: _3 = const ()
-21:11-26:2: @8[9]: _0 = const ()
-26:2-26:2: @8.Return: return">    let version_3_2_1 = Version::new(3, 2, 1);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
-22:9-22:22: @1[0]: FakeRead(ForLet, _1)
-23:25-23:46: @1.Call: _2 = Version::new(const 3_usize, const 3_usize, const 0_usize) -&gt; [return: bb2, unwind: bb9]
-23:9-23:22: @2[0]: FakeRead(ForLet, _2)
-25:14-25:32: @2[7]: _33 = const main::promoted[0]
-25:14-25:32: @2[8]: _8 = &amp;(*_33)
-25:14-25:32: @2[9]: _7 = &amp;(*_8)
-25:14-25:32: @2[10]: _6 = move _7 as &amp;[&amp;str] (Pointer(Unsize))
-25:34-25:47: @2[18]: _15 = &amp;_1
-25:49-25:62: @2[20]: _16 = &amp;_2
-25:64-25:77: @2[24]: _19 = &amp;_1
-25:80-25:93: @2[26]: _20 = &amp;_2
-25:64-25:93: @2.Call: _18 = &lt;Version as PartialOrd&gt;::lt(move _19, move _20) -&gt; [return: bb3, unwind: bb9]
-25:64-25:93: @3[2]: _17 = &amp;_18
-25:5-25:95: @3[3]: _14 = (move _15, move _16, move _17)
-25:5-25:95: @3[7]: FakeRead(ForMatchedPlace, _14)
-25:5-25:95: @3[9]: _21 = (_14.0: &amp;Version)
-25:5-25:95: @3[11]: _22 = (_14.1: &amp;Version)
-25:5-25:95: @3[13]: _23 = (_14.2: &amp;bool)
-25:5-25:95: @3[16]: _25 = &amp;(*_21)
-25:5-25:95: @3[18]: _26 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @3.Call: _24 = ArgumentV1::new::&lt;Version&gt;(move _25, move _26) -&gt; [return: bb4, unwind: bb9]
-25:5-25:95: @4[4]: _28 = &amp;(*_22)
-25:5-25:95: @4[6]: _29 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @4.Call: _27 = ArgumentV1::new::&lt;Version&gt;(move _28, move _29) -&gt; [return: bb5, unwind: bb9]
-25:5-25:95: @5[4]: _31 = &amp;(*_23)
-25:5-25:95: @5[6]: _32 = &lt;bool as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r bool, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @5.Call: _30 = ArgumentV1::new::&lt;bool&gt;(move _31, move _32) -&gt; [return: bb6, unwind: bb9]
-25:5-25:95: @6[2]: _13 = [move _24, move _27, move _30]
-25:5-25:95: @6[9]: _12 = &amp;_13
-25:5-25:95: @6[10]: _11 = &amp;(*_12)
-25:5-25:95: @6[11]: _10 = move _11 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-25:5-25:95: @6.Call: _5 = Arguments::new_v1(move _6, move _10) -&gt; [return: bb7, unwind: bb9]
-25:5-25:95: @7.Call: _4 = _print(move _5) -&gt; [return: bb8, unwind: bb9]
-25:5-25:95: @8[7]: _3 = const ()
-21:11-26:2: @8[9]: _0 = const ()
-26:2-26:2: @8.Return: return">    let version_3_3_0 = Version::new(3, 3, 0);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
-22:9-22:22: @1[0]: FakeRead(ForLet, _1)
-23:25-23:46: @1.Call: _2 = Version::new(const 3_usize, const 3_usize, const 0_usize) -&gt; [return: bb2, unwind: bb9]
-23:9-23:22: @2[0]: FakeRead(ForLet, _2)
-25:14-25:32: @2[7]: _33 = const main::promoted[0]
-25:14-25:32: @2[8]: _8 = &amp;(*_33)
-25:14-25:32: @2[9]: _7 = &amp;(*_8)
-25:14-25:32: @2[10]: _6 = move _7 as &amp;[&amp;str] (Pointer(Unsize))
-25:34-25:47: @2[18]: _15 = &amp;_1
-25:49-25:62: @2[20]: _16 = &amp;_2
-25:64-25:77: @2[24]: _19 = &amp;_1
-25:80-25:93: @2[26]: _20 = &amp;_2
-25:64-25:93: @2.Call: _18 = &lt;Version as PartialOrd&gt;::lt(move _19, move _20) -&gt; [return: bb3, unwind: bb9]
-25:64-25:93: @3[2]: _17 = &amp;_18
-25:5-25:95: @3[3]: _14 = (move _15, move _16, move _17)
-25:5-25:95: @3[7]: FakeRead(ForMatchedPlace, _14)
-25:5-25:95: @3[9]: _21 = (_14.0: &amp;Version)
-25:5-25:95: @3[11]: _22 = (_14.1: &amp;Version)
-25:5-25:95: @3[13]: _23 = (_14.2: &amp;bool)
-25:5-25:95: @3[16]: _25 = &amp;(*_21)
-25:5-25:95: @3[18]: _26 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @3.Call: _24 = ArgumentV1::new::&lt;Version&gt;(move _25, move _26) -&gt; [return: bb4, unwind: bb9]
-25:5-25:95: @4[4]: _28 = &amp;(*_22)
-25:5-25:95: @4[6]: _29 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @4.Call: _27 = ArgumentV1::new::&lt;Version&gt;(move _28, move _29) -&gt; [return: bb5, unwind: bb9]
-25:5-25:95: @5[4]: _31 = &amp;(*_23)
-25:5-25:95: @5[6]: _32 = &lt;bool as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r bool, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @5.Call: _30 = ArgumentV1::new::&lt;bool&gt;(move _31, move _32) -&gt; [return: bb6, unwind: bb9]
-25:5-25:95: @6[2]: _13 = [move _24, move _27, move _30]
-25:5-25:95: @6[9]: _12 = &amp;_13
-25:5-25:95: @6[10]: _11 = &amp;(*_12)
-25:5-25:95: @6[11]: _10 = move _11 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-25:5-25:95: @6.Call: _5 = Arguments::new_v1(move _6, move _10) -&gt; [return: bb7, unwind: bb9]
-25:5-25:95: @7.Call: _4 = _print(move _5) -&gt; [return: bb8, unwind: bb9]
-25:5-25:95: @8[7]: _3 = const ()
-21:11-26:2: @8[9]: _0 = const ()
-26:2-26:2: @8.Return: return"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
-22:9-22:22: @1[0]: FakeRead(ForLet, _1)
-23:25-23:46: @1.Call: _2 = Version::new(const 3_usize, const 3_usize, const 0_usize) -&gt; [return: bb2, unwind: bb9]
-23:9-23:22: @2[0]: FakeRead(ForLet, _2)
-25:14-25:32: @2[7]: _33 = const main::promoted[0]
-25:14-25:32: @2[8]: _8 = &amp;(*_33)
-25:14-25:32: @2[9]: _7 = &amp;(*_8)
-25:14-25:32: @2[10]: _6 = move _7 as &amp;[&amp;str] (Pointer(Unsize))
-25:34-25:47: @2[18]: _15 = &amp;_1
-25:49-25:62: @2[20]: _16 = &amp;_2
-25:64-25:77: @2[24]: _19 = &amp;_1
-25:80-25:93: @2[26]: _20 = &amp;_2
-25:64-25:93: @2.Call: _18 = &lt;Version as PartialOrd&gt;::lt(move _19, move _20) -&gt; [return: bb3, unwind: bb9]
-25:64-25:93: @3[2]: _17 = &amp;_18
-25:5-25:95: @3[3]: _14 = (move _15, move _16, move _17)
-25:5-25:95: @3[7]: FakeRead(ForMatchedPlace, _14)
-25:5-25:95: @3[9]: _21 = (_14.0: &amp;Version)
-25:5-25:95: @3[11]: _22 = (_14.1: &amp;Version)
-25:5-25:95: @3[13]: _23 = (_14.2: &amp;bool)
-25:5-25:95: @3[16]: _25 = &amp;(*_21)
-25:5-25:95: @3[18]: _26 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @3.Call: _24 = ArgumentV1::new::&lt;Version&gt;(move _25, move _26) -&gt; [return: bb4, unwind: bb9]
-25:5-25:95: @4[4]: _28 = &amp;(*_22)
-25:5-25:95: @4[6]: _29 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @4.Call: _27 = ArgumentV1::new::&lt;Version&gt;(move _28, move _29) -&gt; [return: bb5, unwind: bb9]
-25:5-25:95: @5[4]: _31 = &amp;(*_23)
-25:5-25:95: @5[6]: _32 = &lt;bool as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r bool, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @5.Call: _30 = ArgumentV1::new::&lt;bool&gt;(move _31, move _32) -&gt; [return: bb6, unwind: bb9]
-25:5-25:95: @6[2]: _13 = [move _24, move _27, move _30]
-25:5-25:95: @6[9]: _12 = &amp;_13
-25:5-25:95: @6[10]: _11 = &amp;(*_12)
-25:5-25:95: @6[11]: _10 = move _11 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-25:5-25:95: @6.Call: _5 = Arguments::new_v1(move _6, move _10) -&gt; [return: bb7, unwind: bb9]
-25:5-25:95: @7.Call: _4 = _print(move _5) -&gt; [return: bb8, unwind: bb9]
-25:5-25:95: @8[7]: _3 = const ()
-21:11-26:2: @8[9]: _0 = const ()
-26:2-26:2: @8.Return: return">    println!("{:?} &lt; {:?} = {}", version_3_2_1, version_3_3_0, version_3_2_1 &lt; version_3_3_0);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
-22:9-22:22: @1[0]: FakeRead(ForLet, _1)
-23:25-23:46: @1.Call: _2 = Version::new(const 3_usize, const 3_usize, const 0_usize) -&gt; [return: bb2, unwind: bb9]
-23:9-23:22: @2[0]: FakeRead(ForLet, _2)
-25:14-25:32: @2[7]: _33 = const main::promoted[0]
-25:14-25:32: @2[8]: _8 = &amp;(*_33)
-25:14-25:32: @2[9]: _7 = &amp;(*_8)
-25:14-25:32: @2[10]: _6 = move _7 as &amp;[&amp;str] (Pointer(Unsize))
-25:34-25:47: @2[18]: _15 = &amp;_1
-25:49-25:62: @2[20]: _16 = &amp;_2
-25:64-25:77: @2[24]: _19 = &amp;_1
-25:80-25:93: @2[26]: _20 = &amp;_2
-25:64-25:93: @2.Call: _18 = &lt;Version as PartialOrd&gt;::lt(move _19, move _20) -&gt; [return: bb3, unwind: bb9]
-25:64-25:93: @3[2]: _17 = &amp;_18
-25:5-25:95: @3[3]: _14 = (move _15, move _16, move _17)
-25:5-25:95: @3[7]: FakeRead(ForMatchedPlace, _14)
-25:5-25:95: @3[9]: _21 = (_14.0: &amp;Version)
-25:5-25:95: @3[11]: _22 = (_14.1: &amp;Version)
-25:5-25:95: @3[13]: _23 = (_14.2: &amp;bool)
-25:5-25:95: @3[16]: _25 = &amp;(*_21)
-25:5-25:95: @3[18]: _26 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @3.Call: _24 = ArgumentV1::new::&lt;Version&gt;(move _25, move _26) -&gt; [return: bb4, unwind: bb9]
-25:5-25:95: @4[4]: _28 = &amp;(*_22)
-25:5-25:95: @4[6]: _29 = &lt;Version as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r Version, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @4.Call: _27 = ArgumentV1::new::&lt;Version&gt;(move _28, move _29) -&gt; [return: bb5, unwind: bb9]
-25:5-25:95: @5[4]: _31 = &amp;(*_23)
-25:5-25:95: @5[6]: _32 = &lt;bool as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r bool, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-25:5-25:95: @5.Call: _30 = ArgumentV1::new::&lt;bool&gt;(move _31, move _32) -&gt; [return: bb6, unwind: bb9]
-25:5-25:95: @6[2]: _13 = [move _24, move _27, move _30]
-25:5-25:95: @6[9]: _12 = &amp;_13
-25:5-25:95: @6[10]: _11 = &amp;(*_12)
-25:5-25:95: @6[11]: _10 = move _11 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-25:5-25:95: @6.Call: _5 = Arguments::new_v1(move _6, move _10) -&gt; [return: bb7, unwind: bb9]
-25:5-25:95: @7.Call: _4 = _print(move _5) -&gt; [return: bb8, unwind: bb9]
-25:5-25:95: @8[7]: _3 = const ()
-21:11-26:2: @8[9]: _0 = const ()
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-</body>
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diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#0}-new.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#0}-new.-------.InstrumentCoverage.0.html
deleted file mode 100644
index a888cb14d1d44..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#0}-new.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,104 +0,0 @@
-<!DOCTYPE html>
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-
-Preview this file as rendered HTML from the github source at:
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-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
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-<title>partial_eq.{impl#0}-new - Coverage Spans</title>
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-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
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-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 11"><span class="line">    <span class="code" style="--layer: 0">pub fn new(major: usize, minor: usize, patch: usize) -&gt; Self {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
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-16:13-16:18: @0[5]: _6 = _3
-13:9-17:10: @0[6]: _0 = Version { major: move _4, minor: move _5, patch: move _6 }
-18:6-18:6: @0.Return: return"><span class="annotation">@0⦊</span>Self {</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
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-16:13-16:18: @0[5]: _6 = _3
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-<span class="line"><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
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-16:13-16:18: @0[5]: _6 = _3
-13:9-17:10: @0[6]: _0 = Version { major: move _4, minor: move _5, patch: move _6 }
-18:6-18:6: @0.Return: return">            minor,</span></span>
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-16:13-16:18: @0[5]: _6 = _3
-13:9-17:10: @0[6]: _0 = Version { major: move _4, minor: move _5, patch: move _6 }
-18:6-18:6: @0.Return: return">            patch,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
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-16:13-16:18: @0[5]: _6 = _3
-13:9-17:10: @0[6]: _0 = Version { major: move _4, minor: move _5, patch: move _6 }
-18:6-18:6: @0.Return: return">        }</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
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-16:13-16:18: @0[5]: _6 = _3
-13:9-17:10: @0[6]: _0 = Version { major: move _4, minor: move _5, patch: move _6 }
-18:6-18:6: @0.Return: return">    }<span class="annotation">⦉@0</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#1}-cmp.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#1}-cmp.-------.InstrumentCoverage.0.html
deleted file mode 100644
index fa81a7f8afcd4..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#1}-cmp.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,76 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%231%7D-cmp.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>partial_eq.{impl#1}-cmp - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
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-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
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-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
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-<body>
-<div class="code" style="counter-reset: line 3"><span class="line">                                                  <span><span class="code even" style="--layer: 1" title="4:51-4:54: @14.Goto: goto -&gt; bb15"><span class="annotation">@14⦊</span></span></span><span class="code even" style="--layer: 2" title="4:51-4:54: @12[0]: _0 = Equal
-4:51-4:54: @12.Goto: goto -&gt; bb13"><span class="annotation">@11,12⦊</span></span><span class="code even" style="--layer: 3" title="4:51-4:54: @13.Goto: goto -&gt; bb14"><span class="annotation">@13⦊</span>Ord<span class="annotation">⦉@13</span></span><span class="code even" style="--layer: 2" title="4:51-4:54: @12[0]: _0 = Equal
-4:51-4:54: @12.Goto: goto -&gt; bb13"><span class="annotation">⦉@11,12</span></span><span><span class="code even" style="--layer: 1" title="4:51-4:54: @14.Goto: goto -&gt; bb15"><span class="annotation">⦉@14</span></span></span><span><span class="code odd" style="--layer: 1" title="4:54-4:54: @15.Return: return"><span class="annotation">@15⦊</span>‸<span class="annotation">⦉@15</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 52e6b52627693..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,82 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%232%7D-ge-%7Bclosure%230%7D-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>partial_eq.{impl#2}-ge-{closure#0}-{closure#0} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
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-    .line:before {
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-        /* requires holding mouse down anywhere on the page */
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-8:5-8:17: @0[4]: _3 = &amp;(*_4)
-8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
-8:5-8:17: @0[8]: _5 = &amp;(*_6)
-8:5-8:17: @0.Call: _2 = &lt;usize as PartialOrd&gt;::partial_cmp(move _3, move _5) -&gt; [return: bb1, unwind: bb3]
-8:5-8:17: @1[3]: _7 = Less
-8:5-8:17: @1.Call: _0 = Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _2, move _7) -&gt; [return: bb2, unwind: bb3]
-8:5-8:17: @2.Return: return"><span class="annotation">@0,1,2⦊</span>patch: usize<span class="annotation">⦉@0,1,2</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 9f0c29c50bf1b..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,83 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%232%7D-ge-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>partial_eq.{impl#2}-ge-{closure#0} - Coverage Spans</title>
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-</body>
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diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge.-------.InstrumentCoverage.0.html
deleted file mode 100644
index b740a63aed9d1..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,92 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%232%7D-ge.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
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-<head>
-<title>partial_eq.{impl#2}-ge - Coverage Spans</title>
-<style>
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deleted file mode 100644
index 0ad35d701aafd..0000000000000
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deleted file mode 100644
index ff7e783dd68c1..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt-{closure#0}.-------.InstrumentCoverage.0.html
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diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 95b63edba87d5..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt.-------.InstrumentCoverage.0.html
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diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index d43d8526a88e7..0000000000000
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diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 6eb894a166a01..0000000000000
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deleted file mode 100644
index 906d074b71fb6..0000000000000
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diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index a941c08da5d8c..0000000000000
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deleted file mode 100644
index e54849345b7f1..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
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diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 0da90113bddee..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt.-------.InstrumentCoverage.0.html
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diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-partial_cmp.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-partial_cmp.-------.InstrumentCoverage.0.html
deleted file mode 100644
index c5a806f7c1718..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#2}-partial_cmp.-------.InstrumentCoverage.0.html
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@@ -1,78 +0,0 @@
-<!DOCTYPE html>
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-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 3"><span class="line">                                      <span><span class="code even" style="--layer: 1" title="4:39-4:49: @17.Goto: goto -&gt; bb18"><span class="annotation">@17⦊</span></span></span><span class="code even" style="--layer: 2" title="4:39-4:49: @15[1]: _30 = Equal
-4:39-4:49: @15[2]: _0 = Option::&lt;std::cmp::Ordering&gt;::Some(move _30)
-4:39-4:49: @15.Goto: goto -&gt; bb16"><span class="annotation">@14,15⦊</span></span><span class="code even" style="--layer: 3" title="4:39-4:49: @16.Goto: goto -&gt; bb17"><span class="annotation">@16⦊</span>PartialOrd<span class="annotation">⦉@16</span></span><span class="code even" style="--layer: 2" title="4:39-4:49: @15[1]: _30 = Equal
-4:39-4:49: @15[2]: _0 = Option::&lt;std::cmp::Ordering&gt;::Some(move _30)
-4:39-4:49: @15.Goto: goto -&gt; bb16"><span class="annotation">⦉@14,15</span></span><span><span class="code even" style="--layer: 1" title="4:39-4:49: @17.Goto: goto -&gt; bb18"><span class="annotation">⦉@17</span></span></span><span><span class="code odd" style="--layer: 1" title="4:49-4:49: @18.Return: return"><span class="annotation">@18⦊</span>‸<span class="annotation">⦉@18</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#6}-eq.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#6}-eq.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 92f37e4b89a93..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#6}-eq.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,77 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%236%7D-eq.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>partial_eq.{impl#6}-eq - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 3"><span class="line">                       <span><span class="code even" style="--layer: 1" title="4:24-4:33: @2[0]: _0 = const false
-4:24-4:33: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span></span></span><span class="code even" style="--layer: 2" title="4:24-4:33: @1[0]: _0 = const true
-4:24-4:33: @1.Goto: goto -&gt; bb4"><span class="annotation">@1⦊</span>PartialEq<span class="annotation">⦉@1</span></span><span><span class="code even" style="--layer: 1" title="4:24-4:33: @2[0]: _0 = const false
-4:24-4:33: @2.Goto: goto -&gt; bb4"><span class="annotation">⦉@2</span></span></span><span><span class="code odd" style="--layer: 1" title="4:33-4:33: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#6}-ne.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#6}-ne.-------.InstrumentCoverage.0.html
deleted file mode 100644
index df561a7922484..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#6}-ne.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,81 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%236%7D-ne.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>partial_eq.{impl#6}-ne - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 3"><span class="line">                       <span><span class="code even" style="--layer: 1" title="4:24-4:33: @2[0]: _0 = const false
-4:24-4:33: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span></span></span><span class="code even" style="--layer: 2" title="4:24-4:33: @5[0]: _9 = const true
-4:24-4:33: @5.Goto: goto -&gt; bb8"><span class="annotation">@5⦊</span></span><span class="code even" style="--layer: 3" title="4:24-4:33: @6[0]: _9 = const false
-4:24-4:33: @6.Goto: goto -&gt; bb8"><span class="annotation">@6⦊</span></span><span class="code even" style="--layer: 4" title="4:24-4:33: @1[0]: _0 = const true
-4:24-4:33: @1.Goto: goto -&gt; bb4"><span class="annotation">@1⦊</span>PartialEq<span class="annotation">⦉@1</span></span><span class="code even" style="--layer: 3" title="4:24-4:33: @6[0]: _9 = const false
-4:24-4:33: @6.Goto: goto -&gt; bb8"><span class="annotation">⦉@6</span></span><span class="code even" style="--layer: 2" title="4:24-4:33: @5[0]: _9 = const true
-4:24-4:33: @5.Goto: goto -&gt; bb8"><span class="annotation">⦉@5</span></span><span><span class="code even" style="--layer: 1" title="4:24-4:33: @2[0]: _0 = const false
-4:24-4:33: @2.Goto: goto -&gt; bb4"><span class="annotation">⦉@2</span></span></span><span><span class="code odd" style="--layer: 1" title="4:33-4:33: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#7}-fmt.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#7}-fmt.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 195ef4da7b484..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#7}-fmt.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,109 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%237%7D-fmt.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>partial_eq.{impl#7}-fmt - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 3"><span class="line">                <span><span class="code even" style="--layer: 1" title="4:17-4:22: @0[0]: FakeRead(ForMatchedPlace, (*_1))
-4:17-4:22: @0[2]: _3 = &amp;((*_1).0: usize)
-4:17-4:22: @0[4]: _4 = &amp;((*_1).1: usize)
-4:17-4:22: @0[6]: _5 = &amp;((*_1).2: usize)
-4:17-4:22: @0[9]: _7 = &amp;mut (*_2)
-4:17-4:22: @0[12]: _9 = const &quot;Version&quot;
-4:17-4:22: @0[13]: _8 = &amp;(*_9)
-4:17-4:22: @0.Call: _6 = Formatter::debug_struct(move _7, move _8) -&gt; [return: bb1, unwind: bb6]
-4:17-4:22: @1[2]: FakeRead(ForLet, _6)
-4:17-4:22: @1[6]: _11 = &amp;mut _6
-4:17-4:22: @1[9]: _13 = const &quot;major&quot;
-4:17-4:22: @1[10]: _12 = &amp;(*_13)
-4:17-4:22: @1[15]: _17 = &amp;(*_3)
-4:17-4:22: @1[16]: _16 = &amp;_17
-4:17-4:22: @1[17]: _15 = &amp;(*_16)
-4:17-4:22: @1[18]: _14 = move _15 as &amp;dyn std::fmt::Debug (Pointer(Unsize))
-4:17-4:22: @1.Call: _10 = DebugStruct::field(move _11, move _12, move _14) -&gt; [return: bb2, unwind: bb6]
-4:17-4:22: @2[9]: _19 = &amp;mut _6
-4:17-4:22: @2[12]: _21 = const &quot;minor&quot;
-4:17-4:22: @2[13]: _20 = &amp;(*_21)
-4:17-4:22: @2[18]: _25 = &amp;(*_4)
-4:17-4:22: @2[19]: _24 = &amp;_25
-4:17-4:22: @2[20]: _23 = &amp;(*_24)
-4:17-4:22: @2[21]: _22 = move _23 as &amp;dyn std::fmt::Debug (Pointer(Unsize))
-4:17-4:22: @2.Call: _18 = DebugStruct::field(move _19, move _20, move _22) -&gt; [return: bb3, unwind: bb6]
-4:17-4:22: @3[9]: _27 = &amp;mut _6
-4:17-4:22: @3[12]: _29 = const &quot;patch&quot;
-4:17-4:22: @3[13]: _28 = &amp;(*_29)
-4:17-4:22: @3[18]: _33 = &amp;(*_5)
-4:17-4:22: @3[19]: _32 = &amp;_33
-4:17-4:22: @3[20]: _31 = &amp;(*_32)
-4:17-4:22: @3[21]: _30 = move _31 as &amp;dyn std::fmt::Debug (Pointer(Unsize))
-4:17-4:22: @3.Call: _26 = DebugStruct::field(move _27, move _28, move _30) -&gt; [return: bb4, unwind: bb6]
-4:17-4:22: @4[8]: _34 = &amp;mut _6
-4:17-4:22: @4.Call: _0 = DebugStruct::finish(move _34) -&gt; [return: bb5, unwind: bb6]
-4:22-4:22: @5.Return: return"><span class="annotation">@0,1,2,3,4,5⦊</span>Debug<span class="annotation">⦉@0,1,2,3,4,5</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.simple_loop/simple_loop.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.simple_loop/simple_loop.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 29d21cf7ba459..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.simple_loop/simple_loop.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,146 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_loop/simple_loop.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>simple_loop.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)">    let mut countdown = 0<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="12:9-12:16: @3[6]: _7 = _1
-12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">        countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">        =</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">            10</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">        ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="18:6-18:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    loop</span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="23:13-23:22: @9[3]: _11 = _5
-23:13-25:14: @9[4]: _10 = Eq(move _11, const 0_i32)
-23:13-25:14: @9[6]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@8,9⦊</span>countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:13-23:22: @9[3]: _11 = _5
-23:13-25:14: @9[4]: _10 = Eq(move _11, const 0_i32)
-23:13-25:14: @9[6]: FakeRead(ForMatchedPlace, _10)">                ==</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:13-23:22: @9[3]: _11 = _5
-23:13-25:14: @9[4]: _10 = Eq(move _11, const 0_i32)
-23:13-25:14: @9[6]: FakeRead(ForMatchedPlace, _10)">            0<span class="annotation">⦉@8,9</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="27:13-27:18: @12[0]: _0 = const ()"><span class="annotation">@10,12⦊</span>break<span class="annotation">⦉@10,12</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
-30:9-32:10: @13[0]: _5 = move (_13.0: i32)"><span class="annotation">@11,13⦊</span>countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
-30:9-32:10: @13[0]: _5 = move (_13.0: i32)">        -=</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
-30:9-32:10: @13[0]: _5 = move (_13.0: i32)">        1<span class="annotation">⦉@11,13</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="34:6-34:6: @7.Goto: goto -&gt; bb8"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="35:2-35:2: @12.Return: return"><span class="annotation">@10,12⦊</span>‸<span class="annotation">⦉@10,12</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.simple_match/simple_match.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.simple_match/simple_match.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index f1513d458ebb6..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.simple_match/simple_match.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,188 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_match/simple_match.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
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--->
-<html>
-<head>
-<title>simple_match.main - Coverage Spans</title>
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-</head>
-<body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 1_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 1_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
-7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
-7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
-7:9-7:16: @2[3]: FakeRead(ForLet, _1)
-9:25-9:26: @3[2]: _5 = const 1_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)">    let mut countdown = 1<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="10:8-10:15: @3[6]: _7 = _1
-10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:22: @6[0]: _5 = const 0_i32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:22: @6[0]: _5 = const 0_i32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7">        countdown = 0;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:22: @6[0]: _5 = const 0_i32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="12:6-12:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    for</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="15:9-15:10: @15[1]: _18 = ((_14 as Some).0: i32)
-15:9-15:10: @15[3]: _19 = _18
-15:9-15:10: @15[4]: _12 = move _19
-15:9-15:10: @15[5]: _13 = const ()"><span class="annotation">@13,15,17⦊</span>_<span class="annotation">⦉@13,15,17</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    in</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="17:9-17:13: @10[5]: _16 = &amp;mut _10
-17:9-17:13: @10[6]: _15 = &amp;mut (*_16)
-17:9-17:13: @10.Call: _14 = &lt;std::ops::Range&lt;i32&gt; as Iterator&gt;::next(move _15) -&gt; [return: bb11, unwind: bb22]
-17:9-17:13: @11[1]: FakeRead(ForMatchedPlace, _14)"><span class="annotation">@9,10,11⦊</span>0..2<span class="annotation">⦉@9,10,11</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let z</span></span>
-<span class="line"><span class="code" style="--layer: 0">        ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        match</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="22:13-22:22: @15[13]: FakeRead(ForMatchedPlace, _5)"><span class="annotation">@13,15,17⦊</span>countdown<span class="annotation">⦉@13,15,17</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="24:13-24:14: @18[3]: _23 = _5"><span class="annotation">@18⦊</span>x<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            if</span></span>
-<span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code odd" style="--layer: 1" title="26:17-26:18: @17[4]: _26 = (*_24)
-26:17-28:18: @17[5]: _25 = Lt(move _26, const 1_i32)"><span class="annotation">@13,15,17⦊</span>x</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="26:17-26:18: @17[4]: _26 = (*_24)
-26:17-28:18: @17[5]: _25 = Lt(move _26, const 1_i32)">                    &lt;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="26:17-26:18: @17[4]: _26 = (*_24)
-26:17-28:18: @17[5]: _25 = Lt(move _26, const 1_i32)">                1<span class="annotation">⦉@13,15,17</span></span></span><span><span class="code even" style="--layer: 1" title="28:18-28:18: @19.Goto: goto -&gt; bb16"><span class="annotation">@19⦊</span>‸<span class="annotation">⦉@19</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            =&gt;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
-31:17-31:30: @18[6]: _22 = move _27
-33:25-33:34: @18[9]: _28 = _5
-33:21-33:22: @18[10]: FakeRead(ForLet, _28)
-35:17-35:31: @18[11]: _5 = const 10_i32
-30:13-37:14: @18[12]: _21 = const ()"><span class="annotation">@18⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
-31:17-31:30: @18[6]: _22 = move _27
-33:25-33:34: @18[9]: _28 = _5
-33:21-33:22: @18[10]: FakeRead(ForLet, _28)
-35:17-35:31: @18[11]: _5 = const 10_i32
-30:13-37:14: @18[12]: _21 = const ()">                z = countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
-31:17-31:30: @18[6]: _22 = move _27
-33:25-33:34: @18[9]: _28 = _5
-33:21-33:22: @18[10]: FakeRead(ForLet, _28)
-35:17-35:31: @18[11]: _5 = const 10_i32
-30:13-37:14: @18[12]: _21 = const ()">                ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
-31:17-31:30: @18[6]: _22 = move _27
-33:25-33:34: @18[9]: _28 = _5
-33:21-33:22: @18[10]: FakeRead(ForLet, _28)
-35:17-35:31: @18[11]: _5 = const 10_i32
-30:13-37:14: @18[12]: _21 = const ()">                let y = countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
-31:17-31:30: @18[6]: _22 = move _27
-33:25-33:34: @18[9]: _28 = _5
-33:21-33:22: @18[10]: FakeRead(ForLet, _28)
-35:17-35:31: @18[11]: _5 = const 10_i32
-30:13-37:14: @18[12]: _21 = const ()">                ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
-31:17-31:30: @18[6]: _22 = move _27
-33:25-33:34: @18[9]: _28 = _5
-33:21-33:22: @18[10]: FakeRead(ForLet, _28)
-35:17-35:31: @18[11]: _5 = const 10_i32
-30:13-37:14: @18[12]: _21 = const ()">                countdown = 10</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
-31:17-31:30: @18[6]: _22 = move _27
-33:25-33:34: @18[9]: _28 = _5
-33:21-33:22: @18[10]: FakeRead(ForLet, _28)
-35:17-35:31: @18[11]: _5 = const 10_i32
-30:13-37:14: @18[12]: _21 = const ()">                ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
-31:17-31:30: @18[6]: _22 = move _27
-33:25-33:34: @18[9]: _28 = _5
-33:21-33:22: @18[10]: FakeRead(ForLet, _28)
-35:17-35:31: @18[11]: _5 = const 10_i32
-30:13-37:14: @18[12]: _21 = const ()">            }<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            _</span></span>
-<span class="line"><span class="code" style="--layer: 0">            =&gt;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="40:13-40:15: @16[0]: _21 = const ()"><span class="annotation">@16⦊</span>{}<span class="annotation">⦉@16</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="42:6-42:6: @8.Goto: goto -&gt; bb9"><span class="annotation">@7,8⦊</span>‸<span class="annotation">⦉@7,8</span></span></span><span><span class="code even" style="--layer: 1" title="42:6-42:6: @20.Goto: goto -&gt; bb9"><span class="annotation">@20⦊</span>‸<span class="annotation">⦉@20</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="43:2-43:2: @12.Return: return"><span class="annotation">@12⦊</span>‸<span class="annotation">⦉@12</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.tight_inf_loop/tight_inf_loop.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.tight_inf_loop/tight_inf_loop.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 5cf76ecf5c2cd..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.tight_inf_loop/tight_inf_loop.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,80 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.tight_inf_loop/tight_inf_loop.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>tight_inf_loop.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
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-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
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-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
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-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
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-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 0"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="2:8-2:13: @0[1]: _1 = const false
-2:8-2:13: @0[2]: FakeRead(ForMatchedPlace, _1)"><span class="annotation">@0⦊</span>false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="3:9-3:16: @4.FalseUnwind: falseUnwind -&gt; [real: bb5, cleanup: bb6]
-3:14-3:16: @5[0]: _3 = const ()"><span class="annotation">@4,5⦊</span>loop {}<span class="annotation">⦉@4,5</span></span></span><span><span class="code even" style="--layer: 1" title="3:16-3:16: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>‸<span class="annotation">⦉@1,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="5:2-5:2: @2.Return: return"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.try_error_result/try_error_result.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.try_error_result/try_error_result.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index b9391e26c86de..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.try_error_result/try_error_result.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,133 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>try_error_result.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 11"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),()&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="14:21-14:23: @0[1]: _1 = const 10_i32
-13:9-14:18: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0,1⦊</span>mut</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="14:21-14:23: @0[1]: _1 = const 10_i32
-13:9-14:18: @0[2]: FakeRead(ForLet, _1)">        countdown = 10<span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    for</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="17:9-17:10: @8[1]: _13 = ((_9 as Some).0: i32)
-17:9-17:10: @8[3]: _14 = _13
-17:9-17:10: @8[4]: _7 = move _14
-17:9-17:10: @8[5]: _8 = const ()"><span class="annotation">@6,8,9⦊</span>_<span class="annotation">⦉@6,8,9</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    in</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="19:9-19:14: @3[5]: _11 = &amp;mut _5
-19:9-19:14: @3[6]: _10 = &amp;mut (*_11)
-19:9-19:14: @3.Call: _9 = &lt;std::ops::Range&lt;i32&gt; as Iterator&gt;::next(move _10) -&gt; [return: bb4, unwind: bb40]
-19:9-19:14: @4[1]: FakeRead(ForMatchedPlace, _9)"><span class="annotation">@2,3,4⦊</span>0..10<span class="annotation">⦉@2,3,4</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="21:9-22:17: @8[12]: _17 = CheckedSub(_1, const 1_i32)
-21:9-22:17: @9[0]: _1 = move (_17.0: i32)
-25:13-25:22: @9[3]: _19 = _1
-25:13-25:26: @9[4]: _18 = Lt(move _19, const 5_i32)
-25:13-25:26: @9[6]: FakeRead(ForMatchedPlace, _18)"><span class="annotation">@6,8,9⦊</span>countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="21:9-22:17: @8[12]: _17 = CheckedSub(_1, const 1_i32)
-21:9-22:17: @9[0]: _1 = move (_17.0: i32)
-25:13-25:22: @9[3]: _19 = _1
-25:13-25:26: @9[4]: _18 = Lt(move _19, const 5_i32)
-25:13-25:26: @9[6]: FakeRead(ForMatchedPlace, _18)">            -= 1</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="21:9-22:17: @8[12]: _17 = CheckedSub(_1, const 1_i32)
-21:9-22:17: @9[0]: _1 = move (_17.0: i32)
-25:13-25:22: @9[3]: _19 = _1
-25:13-25:26: @9[4]: _18 = Lt(move _19, const 5_i32)
-25:13-25:26: @9[6]: FakeRead(ForMatchedPlace, _18)">        ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="21:9-22:17: @8[12]: _17 = CheckedSub(_1, const 1_i32)
-21:9-22:17: @9[0]: _1 = move (_17.0: i32)
-25:13-25:22: @9[3]: _19 = _1
-25:13-25:26: @9[4]: _18 = Lt(move _19, const 5_i32)
-25:13-25:26: @9[6]: FakeRead(ForMatchedPlace, _18)">        if</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="21:9-22:17: @8[12]: _17 = CheckedSub(_1, const 1_i32)
-21:9-22:17: @9[0]: _1 = move (_17.0: i32)
-25:13-25:22: @9[3]: _19 = _1
-25:13-25:26: @9[4]: _18 = Lt(move _19, const 5_i32)
-25:13-25:26: @9[6]: FakeRead(ForMatchedPlace, _18)">            countdown &lt; 5<span class="annotation">⦉@6,8,9</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="27:13-27:41: @12.Call: _22 = call(const true) -&gt; [return: bb13, unwind: bb40]"><span class="annotation">@10,12,13,14⦊</span>call(/*return_error=*/ true)<span class="annotation">⦉@10,12,13,14</span></span></span><span><span class="code odd" style="--layer: 1" title="27:41-27:42: @18[1]: _24 = ((_21 as Err).0: ())
-27:41-27:42: @18[4]: _27 = _24
-27:41-27:42: @18.Call: _26 = &lt;() as From&lt;()&gt;&gt;::from(move _27) -&gt; [return: bb19, unwind: bb40]"><span class="annotation">@16,18,19,20⦊</span>?<span class="annotation">⦉@16,18,19,20</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="28:13-28:42: @15.Call: _31 = call(const false) -&gt; [return: bb21, unwind: bb40]"><span class="annotation">@15,21,22⦊</span>call(/*return_error=*/ false)<span class="annotation">⦉@15,21,22</span></span></span><span><span class="code odd" style="--layer: 1" title="28:42-28:43: @26[1]: _33 = ((_30 as Err).0: ())
-28:42-28:43: @26[4]: _36 = _33
-28:42-28:43: @26.Call: _35 = &lt;() as From&lt;()&gt;&gt;::from(move _36) -&gt; [return: bb27, unwind: bb40]"><span class="annotation">@24,26,27,28⦊</span>?<span class="annotation">⦉@24,26,27,28</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        else</span></span>
-<span class="line"><span class="code" style="--layer: 0">        {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="32:13-32:42: @11.Call: _40 = call(const false) -&gt; [return: bb29, unwind: bb40]"><span class="annotation">@11,29,30⦊</span>call(/*return_error=*/ false)<span class="annotation">⦉@11,29,30</span></span></span><span><span class="code odd" style="--layer: 1" title="32:42-32:43: @34[1]: _42 = ((_39 as Err).0: ())
-32:42-32:43: @34[4]: _45 = _42
-32:42-32:43: @34.Call: _44 = &lt;() as From&lt;()&gt;&gt;::from(move _45) -&gt; [return: bb35, unwind: bb40]"><span class="annotation">@32,34,35,36⦊</span>?<span class="annotation">⦉@32,34,35,36</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span><span><span class="code even" style="--layer: 1" title="33:10-33:10: @23.Goto: goto -&gt; bb37"><span class="annotation">@23⦊</span>‸<span class="annotation">⦉@23</span></span></span><span><span class="code odd" style="--layer: 1" title="33:10-33:10: @31.Goto: goto -&gt; bb37"><span class="annotation">@31⦊</span>‸<span class="annotation">⦉@31</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="34:6-34:6: @37.Goto: goto -&gt; bb2"><span class="annotation">@37⦊</span>‸<span class="annotation">⦉@37</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="35:8-35:10: @5[9]: _47 = ()
-35:5-35:11: @5[10]: _0 = std::result::Result::&lt;(), ()&gt;::Ok(move _47)"><span class="annotation">@5⦊</span>Ok(())<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="36:2-36:2: @38.Goto: goto -&gt; bb39"><span class="annotation">@38⦊</span>‸<span class="annotation">⦉@38</span></span></span><span><span class="code odd" style="--layer: 1" title="36:2-36:2: @39.Return: return"><span class="annotation">@39⦊</span>‸<span class="annotation">⦉@39</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.while/while.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.while/while.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 05c010da7bc54..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.while/while.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,81 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while/while.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>while.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 0"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="2:15-2:16: @0[1]: _1 = const 9_i32
-2:9-2:12: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>num = 9<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="3:11-3:14: @2[2]: _4 = _1
-3:11-3:20: @2[3]: _3 = Ge(move _4, const 10_i32)
-3:11-3:20: @2[5]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@1,2⦊</span>num &gt;= 10<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="3:21-4:6: @5[0]: _2 = const ()"><span class="annotation">@3,5⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="3:21-4:6: @5[0]: _2 = const ()">    }<span class="annotation">⦉@3,5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="5:2-5:2: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.while_early_ret/while_early_ret.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.while_early_ret/while_early_ret.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 87ce501ca8cc6..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.while_early_ret/while_early_ret.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,130 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while_early_ret/while_early_ret.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>while_early_ret.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="5:25-5:27: @0[1]: _1 = const 10_i32
-5:9-5:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    while</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="7:9-7:18: @2[2]: _5 = _1
-7:9-9:10: @2[3]: _4 = Gt(move _5, const 0_i32)
-7:9-9:10: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="7:9-7:18: @2[2]: _5 = _1
-7:9-9:10: @2[3]: _4 = Gt(move _5, const 0_i32)
-7:9-9:10: @2[5]: FakeRead(ForMatchedPlace, _4)">            &gt;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="7:9-7:18: @2[2]: _5 = _1
-7:9-9:10: @2[3]: _4 = Gt(move _5, const 0_i32)
-7:9-9:10: @2[5]: FakeRead(ForMatchedPlace, _4)">        0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="12:13-12:22: @5[3]: _8 = _1
-12:13-14:14: @5[4]: _7 = Lt(move _8, const 5_i32)
-12:13-14:14: @5[6]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@3,5⦊</span>countdown</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="12:13-12:22: @5[3]: _8 = _1
-12:13-14:14: @5[4]: _7 = Lt(move _8, const 5_i32)
-12:13-14:14: @5[6]: FakeRead(ForMatchedPlace, _7)">                &lt;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="12:13-12:22: @5[3]: _8 = _1
-12:13-14:14: @5[4]: _7 = Lt(move _8, const 5_i32)
-12:13-14:14: @5[6]: FakeRead(ForMatchedPlace, _7)">            5<span class="annotation">⦉@3,5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            return</span></span>
-<span class="line"><span class="code" style="--layer: 0">                if</span></span>
-<span class="line"><span class="code" style="--layer: 0">                    </span><span><span class="code odd" style="--layer: 1" title="18:21-18:30: @8[2]: _11 = _1
-18:21-20:22: @8[3]: _10 = Gt(move _11, const 8_i32)
-18:21-20:22: @8[5]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@6,8⦊</span>countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="18:21-18:30: @8[2]: _11 = _1
-18:21-20:22: @8[3]: _10 = Gt(move _11, const 8_i32)
-18:21-20:22: @8[5]: FakeRead(ForMatchedPlace, _10)">                        &gt;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="18:21-18:30: @8[2]: _11 = _1
-18:21-20:22: @8[3]: _10 = Gt(move _11, const 8_i32)
-18:21-20:22: @8[5]: FakeRead(ForMatchedPlace, _10)">                    8<span class="annotation">⦉@6,8</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">                {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                    </span><span><span class="code even" style="--layer: 1" title="22:24-22:26: @11[1]: _12 = ()
-22:21-22:27: @11[2]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _12)"><span class="annotation">@9,11⦊</span>Ok(())<span class="annotation">⦉@9,11</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">                }</span></span>
-<span class="line"><span class="code" style="--layer: 0">                else</span></span>
-<span class="line"><span class="code" style="--layer: 0">                {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                    </span><span><span class="code odd" style="--layer: 1" title="26:21-26:27: @10[0]: _0 = std::result::Result::&lt;(), u8&gt;::Err(const 1_u8)"><span class="annotation">@10⦊</span>Err(1)<span class="annotation">⦉@10</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">                }</span></span>
-<span class="line"><span class="code" style="--layer: 0">                ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
-30:9-32:10: @12[0]: _1 = move (_13.0: i32)"><span class="annotation">@7,12⦊</span>countdown</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
-30:9-32:10: @12[0]: _1 = move (_13.0: i32)">            -=</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
-30:9-32:10: @12[0]: _1 = move (_13.0: i32)">        1<span class="annotation">⦉@7,12</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="35:8-35:10: @4[4]: _15 = ()
-35:5-35:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)"><span class="annotation">@4⦊</span>Ok(())<span class="annotation">⦉@4</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="36:2-36:2: @13.Goto: goto -&gt; bb14"><span class="annotation">@13⦊</span>‸<span class="annotation">⦉@13</span></span></span><span><span class="code odd" style="--layer: 1" title="36:2-36:2: @14.Return: return"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main-{closure#0}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index b8458f9d8d655..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main-{closure#0}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,79 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>yield.main-{closure#0} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 7"><span class="line">                        <span class="code" style="--layer: 0">|| {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="9:9-9:16: @0.Yield: _3 = yield(const 1_i32) -&gt; [resume: bb1, drop: bb2]"><span class="annotation">@0⦊</span>yield 1<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        return </span><span><span class="code odd" style="--layer: 1" title="10:16-10:21: @1[1]: _0 = const &quot;foo&quot;
-11:6-11:6: @1.Return: return"><span class="annotation">@1⦊</span>"foo"</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="10:16-10:21: @1[1]: _0 = const &quot;foo&quot;
-11:6-11:6: @1.Return: return">    }<span class="annotation">⦉@1</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main-{closure#1}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main-{closure#1}.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 2387f40847ad4..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main-{closure#1}.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,81 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-%7Bclosure%231%7D.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>yield.main-{closure#1} - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 21"><span class="line">                        <span class="code" style="--layer: 0">|| {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="23:9-23:16: @0.Yield: _3 = yield(const 1_i32) -&gt; [resume: bb1, drop: bb6]"><span class="annotation">@0⦊</span>yield 1<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="24:9-24:16: @1.Yield: _4 = yield(const 2_i32) -&gt; [resume: bb2, drop: bb5]"><span class="annotation">@1⦊</span>yield 2<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="25:9-25:16: @2.Yield: _5 = yield(const 3_i32) -&gt; [resume: bb3, drop: bb4]"><span class="annotation">@2⦊</span>yield 3<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        return </span><span><span class="code odd" style="--layer: 1" title="26:16-26:21: @3[1]: _0 = const &quot;foo&quot;
-27:6-27:6: @3.Return: return"><span class="annotation">@3⦊</span>"foo"</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="26:16-26:21: @3[1]: _0 = const &quot;foo&quot;
-27:6-27:6: @3.Return: return">    }<span class="annotation">⦉@3</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main.-------.InstrumentCoverage.0.html
deleted file mode 100644
index 7c974d7f97bc4..0000000000000
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.yield/yield.main.-------.InstrumentCoverage.0.html
+++ /dev/null
@@ -1,138 +0,0 @@
-<!DOCTYPE html>
-<!--
-
-Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main.-------.InstrumentCoverage.0.html
-
-For revisions in Pull Requests (PR):
-  * Replace "rust-lang" with the github PR author
-  * Replace "master" with the PR branch name
-
--->
-<html>
-<head>
-<title>yield.main - Coverage Spans</title>
-<style>
-    .line {
-        counter-increment: line;
-    }
-    .line:before {
-        content: counter(line) ": ";
-        font-family: Menlo, Monaco, monospace;
-        font-style: italic;
-        width: 3.8em;
-        display: inline-block;
-        text-align: right;
-        filter: opacity(50%);
-        -webkit-user-select: none;
-    }
-    .code {
-        color: #dddddd;
-        background-color: #222222;
-        font-family: Menlo, Monaco, monospace;
-        line-height: 1.4em;
-        border-bottom: 2px solid #222222;
-        white-space: pre;
-        display: inline-block;
-    }
-    .odd {
-        background-color: #55bbff;
-        color: #223311;
-    }
-    .even {
-        background-color: #ee7756;
-        color: #551133;
-    }
-    .code {
-        --index: calc(var(--layer) - 1);
-        padding-top: calc(var(--index) * 0.15em);
-        filter:
-            hue-rotate(calc(var(--index) * 25deg))
-            saturate(calc(100% - (var(--index) * 2%)))
-            brightness(calc(100% - (var(--index) * 1.5%)));
-    }
-    .annotation {
-        color: #4444ff;
-        font-family: monospace;
-        font-style: italic;
-        display: none;
-        -webkit-user-select: none;
-    }
-    body:active .annotation {
-        /* requires holding mouse down anywhere on the page */
-        display: inline-block;
-    }
-    span:hover .annotation {
-        /* requires hover over a span ONLY on its first line */
-        display: inline-block;
-    }
-</style>
-</head>
-<body>
-<div class="code" style="counter-reset: line 6"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="8:9-8:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0,1,2⦊</span>mut generator<span class="annotation">⦉@0,1,2</span></span></span><span class="code" style="--layer: 0"> = || {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        yield 1;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        return "foo"</span></span>
-<span class="line"><span class="code" style="--layer: 0">    };</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    match </span><span><span class="code even" style="--layer: 1" title="13:20-13:34: @0[7]: _5 = &amp;mut _1
-13:11-13:35: @0.Call: _4 = Pin::&lt;&amp;mut [generator@../coverage/yield.rs:8:25: 11:6 {i32, ()}]&gt;::new(move _5) -&gt; [return: bb1, unwind: bb26]
-13:43-13:45: @1[2]: _6 = ()
-13:11-13:46: @1.Call: _3 = &lt;[generator@../coverage/yield.rs:8:25: 11:6 {i32, ()}] as Generator&gt;::resume(move _4, move _6) -&gt; [return: bb2, unwind: bb26]
-13:11-13:46: @2[2]: FakeRead(ForMatchedPlace, _3)
-14:9-14:35: @2[3]: _7 = discriminant(_3)"><span class="annotation">@0,1,2⦊</span>Pin::new(&amp;mut generator).resume(()) {</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="13:20-13:34: @0[7]: _5 = &amp;mut _1
-13:11-13:35: @0.Call: _4 = Pin::&lt;&amp;mut [generator@../coverage/yield.rs:8:25: 11:6 {i32, ()}]&gt;::new(move _5) -&gt; [return: bb1, unwind: bb26]
-13:43-13:45: @1[2]: _6 = ()
-13:11-13:46: @1.Call: _3 = &lt;[generator@../coverage/yield.rs:8:25: 11:6 {i32, ()}] as Generator&gt;::resume(move _4, move _6) -&gt; [return: bb2, unwind: bb26]
-13:11-13:46: @2[2]: FakeRead(ForMatchedPlace, _3)
-14:9-14:35: @2[3]: _7 = discriminant(_3)">        GeneratorState::Yielded(1)<span class="annotation">⦉@0,1,2</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="14:39-14:41: @6[0]: _2 = const ()"><span class="annotation">@4,6,7,8⦊</span>{}<span class="annotation">⦉@4,6,7,8</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="15:14-15:52: @5.Call: begin_panic::&lt;&amp;str&gt;(const &quot;unexpected value from resume&quot;) -&gt; bb26"><span class="annotation">@5⦊</span>panic!("unexpected value from resume")<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    match </span><span><span class="code odd" style="--layer: 1" title="17:20-17:34: @6[7]: _12 = &amp;mut _1
-17:11-17:35: @6.Call: _11 = Pin::&lt;&amp;mut [generator@../coverage/yield.rs:8:25: 11:6 {i32, ()}]&gt;::new(move _12) -&gt; [return: bb7, unwind: bb26]
-17:43-17:45: @7[2]: _13 = ()
-17:11-17:46: @7.Call: _10 = &lt;[generator@../coverage/yield.rs:8:25: 11:6 {i32, ()}] as Generator&gt;::resume(move _11, move _13) -&gt; [return: bb8, unwind: bb26]
-17:11-17:46: @8[2]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@4,6,7,8⦊</span>Pin::new(&amp;mut generator).resume(())<span class="annotation">⦉@4,6,7,8</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        GeneratorState::Complete(</span><span><span class="code even" style="--layer: 1" title="18:34-18:39: @10.Call: _14 = &lt;str as PartialEq&gt;::eq(((_10 as Complete).0: &amp;str), const &quot;foo&quot;) -&gt; [return: bb11, unwind: bb26]"><span class="annotation">@10,11⦊</span>"foo"<span class="annotation">⦉@10,11</span></span></span><span class="code" style="--layer: 0">) =&gt; </span><span><span class="code odd" style="--layer: 1" title="18:44-18:46: @13[0]: _9 = const ()"><span class="annotation">@12,13,14,15⦊</span>{}<span class="annotation">⦉@12,13,14,15</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="19:14-19:52: @9.Call: begin_panic::&lt;&amp;str&gt;(const &quot;unexpected value from resume&quot;) -&gt; bb26"><span class="annotation">@9⦊</span>panic!("unexpected value from resume")<span class="annotation">⦉@9</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="22:9-22:22: @13[5]: FakeRead(ForLet, _17)"><span class="annotation">@12,13,14,15⦊</span>mut generator<span class="annotation">⦉@12,13,14,15</span></span></span><span class="code" style="--layer: 0"> = || {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        yield 1;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        yield 2;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        yield 3;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        return "foo"</span></span>
-<span class="line"><span class="code" style="--layer: 0">    };</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    match </span><span><span class="code odd" style="--layer: 1" title="29:20-29:34: @13[10]: _21 = &amp;mut _17
-29:11-29:35: @13.Call: _20 = Pin::&lt;&amp;mut [generator@../coverage/yield.rs:22:25: 27:6 {i32, ()}]&gt;::new(move _21) -&gt; [return: bb14, unwind: bb26]
-29:43-29:45: @14[2]: _22 = ()
-29:11-29:46: @14.Call: _19 = &lt;[generator@../coverage/yield.rs:22:25: 27:6 {i32, ()}] as Generator&gt;::resume(move _20, move _22) -&gt; [return: bb15, unwind: bb26]
-29:11-29:46: @15[2]: FakeRead(ForMatchedPlace, _19)
-30:9-30:35: @15[3]: _23 = discriminant(_19)"><span class="annotation">@12,13,14,15⦊</span>Pin::new(&amp;mut generator).resume(()) {</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="29:20-29:34: @13[10]: _21 = &amp;mut _17
-29:11-29:35: @13.Call: _20 = Pin::&lt;&amp;mut [generator@../coverage/yield.rs:22:25: 27:6 {i32, ()}]&gt;::new(move _21) -&gt; [return: bb14, unwind: bb26]
-29:43-29:45: @14[2]: _22 = ()
-29:11-29:46: @14.Call: _19 = &lt;[generator@../coverage/yield.rs:22:25: 27:6 {i32, ()}] as Generator&gt;::resume(move _20, move _22) -&gt; [return: bb15, unwind: bb26]
-29:11-29:46: @15[2]: FakeRead(ForMatchedPlace, _19)
-30:9-30:35: @15[3]: _23 = discriminant(_19)">        GeneratorState::Yielded(1)<span class="annotation">⦉@12,13,14,15</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code even" style="--layer: 1" title="30:39-30:41: @19[0]: _18 = const ()"><span class="annotation">@17,19,20,21⦊</span>{}<span class="annotation">⦉@17,19,20,21</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code odd" style="--layer: 1" title="31:14-31:52: @18.Call: begin_panic::&lt;&amp;str&gt;(const &quot;unexpected value from resume&quot;) -&gt; bb26"><span class="annotation">@18⦊</span>panic!("unexpected value from resume")<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    match </span><span><span class="code even" style="--layer: 1" title="33:20-33:34: @19[6]: _27 = &amp;mut _17
-33:11-33:35: @19.Call: _26 = Pin::&lt;&amp;mut [generator@../coverage/yield.rs:22:25: 27:6 {i32, ()}]&gt;::new(move _27) -&gt; [return: bb20, unwind: bb26]
-33:43-33:45: @20[2]: _28 = ()
-33:11-33:46: @20.Call: _25 = &lt;[generator@../coverage/yield.rs:22:25: 27:6 {i32, ()}] as Generator&gt;::resume(move _26, move _28) -&gt; [return: bb21, unwind: bb26]
-33:11-33:46: @21[2]: FakeRead(ForMatchedPlace, _25)
-34:9-34:35: @21[3]: _29 = discriminant(_25)"><span class="annotation">@17,19,20,21⦊</span>Pin::new(&amp;mut generator).resume(()) {</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:20-33:34: @19[6]: _27 = &amp;mut _17
-33:11-33:35: @19.Call: _26 = Pin::&lt;&amp;mut [generator@../coverage/yield.rs:22:25: 27:6 {i32, ()}]&gt;::new(move _27) -&gt; [return: bb20, unwind: bb26]
-33:43-33:45: @20[2]: _28 = ()
-33:11-33:46: @20.Call: _25 = &lt;[generator@../coverage/yield.rs:22:25: 27:6 {i32, ()}] as Generator&gt;::resume(move _26, move _28) -&gt; [return: bb21, unwind: bb26]
-33:11-33:46: @21[2]: FakeRead(ForMatchedPlace, _25)
-34:9-34:35: @21[3]: _29 = discriminant(_25)">        GeneratorState::Yielded(2)<span class="annotation">⦉@17,19,20,21</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="34:39-34:41: @25[0]: _0 = const ()"><span class="annotation">@23,25⦊</span>{}<span class="annotation">⦉@23,25</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="35:14-35:52: @24.Call: begin_panic::&lt;&amp;str&gt;(const &quot;unexpected value from resume&quot;) -&gt; bb26"><span class="annotation">@24⦊</span>panic!("unexpected value from resume")<span class="annotation">⦉@24</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="37:2-37:2: @25.Return: return"><span class="annotation">@23,25⦊</span>‸<span class="annotation">⦉@23,25</span></span></span></span></div>
-</body>
-</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/Makefile b/src/test/run-make-fulldeps/coverage-spanview/Makefile
index 979c6a3da411e..f414fe89eb945 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/Makefile
+++ b/src/test/run-make-fulldeps/coverage-spanview/Makefile
@@ -1,9 +1,5 @@
 # needs-profiler-support
 
-# ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and
-# `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`.
-# See ../coverage/coverage_tools.mk for more information.
-
 -include ../coverage/coverage_tools.mk
 
 BASEDIR=../coverage-spanview
@@ -47,7 +43,6 @@ endif
 				echo "--edition=2018" \
 			) \
 			-Zinstrument-coverage \
-			-Clink-dead-code=$(LINK_DEAD_CODE) \
 			-Zdump-mir=InstrumentCoverage \
 			-Zdump-mir-spanview \
 			-Zdump-mir-dir="$(TMPDIR)"/mir_dump.$@
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.main.-------.InstrumentCoverage.0.html
index 63f7d2dd2d9ff..9834124694ec7 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.main.-------.InstrumentCoverage.0.html
@@ -69,31 +69,41 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 13"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="15:25-15:27: @0[1]: _1 = const 10_i32
-15:9-15:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 13"><span class="line"><span><span class="code even" style="--layer: 1" title="15:25-15:27: @0[1]: _1 = const 10_i32
+15:9-15:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>fn main() -&gt; Result&lt;(), u8&gt; {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="15:25-15:27: @0[1]: _1 = const 10_i32
+15:9-15:22: @0[2]: FakeRead(ForLet, _1)">    let mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="16:11-16:20: @2[2]: _5 = _1
 16:11-16:24: @2[3]: _4 = Gt(move _5, const 0_i32)
 16:11-16:24: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown &gt; 0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="17:12-17:21: @5[3]: _8 = _1
 17:12-17:25: @5[4]: _7 = Lt(move _8, const 5_i32)
-17:12-17:25: @5[6]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@3,5⦊</span>countdown &lt; 5<span class="annotation">⦉@3,5</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb12]
-17:26-19:10: @9[1]: _6 = const ()
-19:10-19:10: @9.Goto: goto -&gt; bb10"><span class="annotation">@6,8,9⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb12]
-17:26-19:10: @9[1]: _6 = const ()
-19:10-19:10: @9.Goto: goto -&gt; bb10">            might_abort(false);</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb12]
-17:26-19:10: @9[1]: _6 = const ()
-19:10-19:10: @9.Goto: goto -&gt; bb10">        }<span class="annotation">⦉@6,8,9</span></span></span><span><span class="code even" style="--layer: 1" title="19:10-19:10: @7.Goto: goto -&gt; bb10"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="20:9-20:23: @10[2]: _10 = CheckedSub(_1, const 1_i32)
-20:9-20:23: @11[0]: _1 = move (_10.0: i32)"><span class="annotation">@10,11⦊</span>countdown -= 1<span class="annotation">⦉@10,11</span></span></span><span class="code" style="--layer: 0">;</span></span>
+17:12-17:25: @5[6]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@3,5⦊</span>countdown &lt; 5<span class="annotation">⦉@3,5</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb22]
+17:26-19:10: @9[1]: _6 = const ()"><span class="annotation">@6,8,9⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb22]
+17:26-19:10: @9[1]: _6 = const ()">            might_abort(false);</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="18:13-18:31: @8.Call: _9 = might_abort(const false) -&gt; [return: bb9, unwind: bb22]
+17:26-19:10: @9[1]: _6 = const ()">        }<span class="annotation">⦉@6,8,9</span></span></span><span><span class="code even" style="--layer: 1" title="19:10-19:10: @7[0]: _6 = const ()"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        // See discussion (below the `Notes` section) on coverage results for the closing brace.</span></span>
+<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="21:12-21:21: @10[5]: _12 = _1
+21:12-21:25: @10[6]: _11 = Lt(move _12, const 5_i32)
+21:12-21:25: @10[8]: FakeRead(ForMatchedPlace, _11)"><span class="annotation">@10⦊</span>countdown &lt; 5<span class="annotation">⦉@10</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="21:28-21:46: @13.Call: _13 = might_abort(const false) -&gt; [return: bb14, unwind: bb22]
+21:26-21:49: @14[1]: _10 = const ()"><span class="annotation">@11,13,14⦊</span>{ might_abort(false); }<span class="annotation">⦉@11,13,14</span></span></span><span><span class="code odd" style="--layer: 1" title="21:49-21:49: @12[0]: _10 = const ()"><span class="annotation">@12⦊</span>‸<span class="annotation">⦉@12</span></span></span><span class="code" style="--layer: 0"> // Counts for different regions on one line.</span></span>
+<span class="line"><span class="code" style="--layer: 0">        // For the following example, the closing brace is the last character on the line.</span></span>
+<span class="line"><span class="code" style="--layer: 0">        // This shows the character after the closing brace is highlighted, even if that next</span></span>
+<span class="line"><span class="code" style="--layer: 0">        // character is a newline.</span></span>
+<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="25:12-25:21: @15[5]: _16 = _1
+25:12-25:25: @15[6]: _15 = Lt(move _16, const 5_i32)
+25:12-25:25: @15[8]: FakeRead(ForMatchedPlace, _15)"><span class="annotation">@15⦊</span>countdown &lt; 5<span class="annotation">⦉@15</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="25:28-25:46: @18.Call: _17 = might_abort(const false) -&gt; [return: bb19, unwind: bb22]
+25:26-25:49: @19[1]: _14 = const ()"><span class="annotation">@16,18,19⦊</span>{ might_abort(false); }<span class="annotation">⦉@16,18,19</span></span></span><span><span class="code even" style="--layer: 1" title="25:49-25:49: @17[0]: _14 = const ()"><span class="annotation">@17⦊</span>‸<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="26:9-26:23: @20[2]: _18 = CheckedSub(_1, const 1_i32)
+26:9-26:23: @21[0]: _1 = move (_18.0: i32)"><span class="annotation">@20,21⦊</span>countdown -= 1<span class="annotation">⦉@20,21</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="22:8-22:10: @4[4]: _12 = ()
-22:5-22:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _12)
-23:2-23:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="22:8-22:10: @4[4]: _12 = ()
-22:5-22:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _12)
-23:2-23:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="28:8-28:10: @4[4]: _20 = ()
+28:5-28:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _20)
+29:2-29:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="28:8-28:10: @4[4]: _20 = ()
+28:5-28:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _20)
+29:2-29:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.might_abort.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.might_abort.-------.InstrumentCoverage.0.html
index 444ca72ce4c10..ab7108ae570b7 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.might_abort.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.abort/abort.might_abort.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">fn might_abort(should_abort: bool) {</span></span>
+<div class="code" style="counter-reset: line 4"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0⦊</span>fn might_abort(should_abort: bool) <span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">{</span></span>
 <span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="6:8-6:20: @0[1]: _2 = _1
 6:8-6:20: @0[2]: FakeRead(ForMatchedPlace, _2)"><span class="annotation">@0⦊</span>should_abort<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="7:18-7:31: @3[6]: _33 = const might_abort::promoted[3]
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.main.-------.InstrumentCoverage.0.html
index d84e200cc1a62..f24de8e08432a 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.main.-------.InstrumentCoverage.0.html
@@ -69,9 +69,10 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 8"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="10:25-10:27: @0[1]: _1 = const 10_i32
-10:9-10:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 8"><span class="line"><span><span class="code even" style="--layer: 1" title="10:25-10:27: @0[1]: _1 = const 10_i32
+10:9-10:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:25-10:27: @0[1]: _1 = const 10_i32
+10:9-10:22: @0[2]: FakeRead(ForLet, _1)">    let mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="11:11-11:20: @2[2]: _5 = _1
 11:11-11:24: @2[3]: _4 = Gt(move _5, const 0_i32)
 11:11-11:24: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown &gt; 0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> {</span></span>
@@ -89,14 +90,14 @@
 <span class="line"><span class="code odd" style="--layer: 1" title="15:13-15:33: @12.Call: _12 = might_fail_assert(const 2_u32) -&gt; [return: bb13, unwind: bb17]
 14:33-16:10: @13[1]: _6 = const ()">            might_fail_assert(2);</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="15:13-15:33: @12.Call: _12 = might_fail_assert(const 2_u32) -&gt; [return: bb13, unwind: bb17]
-14:33-16:10: @13[1]: _6 = const ()">        }<span class="annotation">⦉@10,12,13</span></span></span><span><span class="code even" style="--layer: 1" title="16:10-16:10: @11.Goto: goto -&gt; bb14"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span><span><span class="code odd" style="--layer: 1" title="16:10-16:10: @14.Goto: goto -&gt; bb15"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="17:9-17:23: @15[2]: _13 = CheckedSub(_1, const 1_i32)
+14:33-16:10: @13[1]: _6 = const ()">        }<span class="annotation">⦉@10,12,13</span></span></span><span><span class="code even" style="--layer: 1" title="16:10-16:10: @11[0]: _6 = const ()"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="17:9-17:23: @15[2]: _13 = CheckedSub(_1, const 1_i32)
 17:9-17:23: @16[0]: _1 = move (_13.0: i32)"><span class="annotation">@15,16⦊</span>countdown -= 1<span class="annotation">⦉@15,16</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="19:8-19:10: @4[4]: _15 = ()
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="19:8-19:10: @4[4]: _15 = ()
 19:5-19:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)
 20:2-20:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="19:8-19:10: @4[4]: _15 = ()
+<span class="line"><span class="code even" style="--layer: 1" title="19:8-19:10: @4[4]: _15 = ()
 19:5-19:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)
 20:2-20:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
 </body>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.might_fail_assert.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.might_fail_assert.-------.InstrumentCoverage.0.html
index c03fc8e416e5e..13cfebfe6e50e 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.might_fail_assert.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.assert/assert.might_fail_assert.-------.InstrumentCoverage.0.html
@@ -69,9 +69,9 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn might_fail_assert(one_plus_one: u32) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="5:14-5:32: @0[6]: _75 = const might_fail_assert::promoted[4]
-5:14-5:32: @0[7]: _7 = &amp;(*_75)
+<div class="code" style="counter-reset: line 3"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1,2,3,4⦊</span>fn might_fail_assert(one_plus_one: u32) <span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">{</span></span>
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="5:14-5:32: @0[6]: _73 = const might_fail_assert::promoted[4]
+5:14-5:32: @0[7]: _7 = &amp;(*_73)
 5:14-5:32: @0[8]: _6 = &amp;(*_7)
 5:14-5:32: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
 5:34-5:46: @0[17]: _14 = &amp;_1
@@ -88,10 +88,10 @@
 5:5-5:48: @1.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb2, unwind: bb13]
 5:5-5:48: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb13]
 5:5-5:48: @3[6]: _2 = const ()"><span class="annotation">@0,1,2,3,4⦊</span>println!("does 1 + 1 = {}?", one_plus_one);<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    assert_eq!(</span><span><span class="code even" style="--layer: 1" title="6:16-6:21: @3[11]: _23 = CheckedAdd(const 1_u32, const 1_u32)"><span class="annotation">@0,1,2,3,4⦊</span>1 + 1<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">, one_plus_one, </span><span><span class="code odd" style="--layer: 1" title="6:37-6:61: @7[30]: _72 = const might_fail_assert::promoted[1]
-6:37-6:61: @7[31]: _52 = &amp;(*_72)
-6:37-6:61: @7[32]: _51 = &amp;(*_52)
-6:37-6:61: @7[33]: _50 = move _51 as &amp;[&amp;str] (Pointer(Unsize))"><span class="annotation">@5,7,8,9,10,11,12⦊</span>"the argument was wrong"<span class="annotation">⦉@5,7,8,9,10,11,12</span></span></span><span class="code" style="--layer: 0">);</span></span>
+<span class="line"><span class="code" style="--layer: 0">    assert_eq!(</span><span><span class="code even" style="--layer: 1" title="6:16-6:21: @3[11]: _23 = CheckedAdd(const 1_u32, const 1_u32)"><span class="annotation">@0,1,2,3,4⦊</span>1 + 1<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">, one_plus_one, </span><span><span class="code odd" style="--layer: 1" title="6:37-6:61: @7[28]: _70 = const might_fail_assert::promoted[1]
+6:37-6:61: @7[29]: _50 = &amp;(*_70)
+6:37-6:61: @7[30]: _49 = &amp;(*_50)
+6:37-6:61: @7[31]: _48 = move _49 as &amp;[&amp;str] (Pointer(Unsize))"><span class="annotation">@5,7,8,9,10,11,12⦊</span>"the argument was wrong"<span class="annotation">⦉@5,7,8,9,10,11,12</span></span></span><span class="code" style="--layer: 0">);</span></span>
 <span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="7:2-7:2: @6.Return: return"><span class="annotation">@6⦊</span>‸<span class="annotation">⦉@6</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.try_error_result/try_error_result.call.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.c-{closure#0}.-------.InstrumentCoverage.0.html
similarity index 65%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.try_error_result/try_error_result.call.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.c-{closure#0}.-------.InstrumentCoverage.0.html
index eeee81daeb21c..82a22ccb4e673 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.try_error_result/try_error_result.call.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.c-{closure#0}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.call.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.c-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>try_error_result.call - Coverage Spans</title>
+<title>async.c-{closure#0} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,15 +69,16 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn call(return_error: bool) -&gt; Result&lt;(),()&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="5:8-5:20: @0[1]: _2 = _1
-5:8-5:20: @0[2]: FakeRead(ForMatchedPlace, _2)"><span class="annotation">@0⦊</span>return_error<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="6:13-6:15: @3[1]: _3 = ()
-6:9-6:16: @3[2]: _0 = std::result::Result::&lt;(), ()&gt;::Err(move _3)"><span class="annotation">@1,3⦊</span>Err(())<span class="annotation">⦉@1,3</span></span></span><span class="code" style="--layer: 0"></span></span>
+<div class="code" style="counter-reset: line 4"><span class="line">                        <span><span class="code even" style="--layer: 1" title="6:8-6:9: @0[5]: _5 = _3
+6:8-6:14: @0[6]: _4 = Eq(move _5, const 8_u8)
+6:8-6:14: @0[8]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="6:8-6:9: @0[5]: _5 = _3
+6:8-6:14: @0[6]: _4 = Eq(move _5, const 8_u8)
+6:8-6:14: @0[8]: FakeRead(ForMatchedPlace, _4)">    if x == 8<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="7:9-7:10: @3[0]: _0 = const 1_u8"><span class="annotation">@1,3⦊</span>1<span class="annotation">⦉@1,3</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="8:12-8:14: @2[1]: _4 = ()
-8:9-8:15: @2[2]: _0 = std::result::Result::&lt;(), ()&gt;::Ok(move _4)"><span class="annotation">@2⦊</span>Ok(())<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="9:9-9:10: @2[0]: _0 = const 0_u8"><span class="annotation">@2⦊</span>0<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="10:2-10:2: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="11:2-11:2: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.i.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.c.-------.InstrumentCoverage.0.html
similarity index 77%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.i.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.c.-------.InstrumentCoverage.0.html
index 0b193f4973e09..3eee0dd4100ed 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.i.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.c.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.c.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>async.i - Coverage Spans</title>
+<title>async.c - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,11 +69,12 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 24"><span class="line"><span class="code" style="--layer: 0">async fn i(x: u8) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    match x {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        y if f().await == y + 1 =&gt; (),</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; (),</span></span>
+<div class="code" style="counter-reset: line 4"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>async fn c(x: u8) -&gt; u8 <span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">{</span></span>
+<span class="line"><span class="code" style="--layer: 0">    if x == 8 {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        1</span></span>
+<span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        0</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="30:2-30:2: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.f-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.d-{closure#0}.-------.InstrumentCoverage.0.html
similarity index 79%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.f-{closure#0}.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.d-{closure#0}.-------.InstrumentCoverage.0.html
index 7fe94dca7a412..7cf34f077954f 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.f-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.d-{closure#0}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.d-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>async.f-{closure#0} - Coverage Spans</title>
+<title>async.d-{closure#0} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 4"><span class="line">                   <span class="code" style="--layer: 0">{ </span><span><span class="code even" style="--layer: 1" title="5:22-5:23: @0[0]: _0 = const 1_u8
-5:25-5:25: @0.Return: return"><span class="annotation">@0⦊</span>1 }<span class="annotation">⦉@0</span></span></span></span></div>
+<div class="code" style="counter-reset: line 12"><span class="line">                   <span><span class="code even" style="--layer: 1" title="13:22-13:23: @0[0]: _0 = const 1_u8
+13:25-13:25: @0.Return: return"><span class="annotation">@0⦊</span>‸<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">{ 1 }</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.f.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.d.-------.InstrumentCoverage.0.html
similarity index 81%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.f.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.d.-------.InstrumentCoverage.0.html
index f5eddba9d4b5a..5c7f6e00224a0 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.f.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.d.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.d.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>async.f - Coverage Spans</title>
+<title>async.d - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,6 +69,6 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">async fn f() -&gt; u8 { 1 }</span><span><span class="code even" style="--layer: 1" title="5:25-5:25: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<div class="code" style="counter-reset: line 12"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>async fn d() -&gt; u8 <span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">{ 1 }</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#4}-assert_receiver_is_total_eq.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.e-{closure#0}.-------.InstrumentCoverage.0.html
similarity index 78%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#4}-assert_receiver_is_total_eq.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.e-{closure#0}.-------.InstrumentCoverage.0.html
index b4beef867ebcc..1f95a7d35af88 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#4}-assert_receiver_is_total_eq.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.e-{closure#0}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%234%7D-assert_receiver_is_total_eq.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.e-%7Bclosure%230%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>partial_eq.{impl#4}-assert_receiver_is_total_eq - Coverage Spans</title>
+<title>async.e-{closure#0} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line">                                  <span><span class="code even" style="--layer: 1" title="4:35-4:37: @0[0]: _0 = const ()
-4:37-4:37: @0.Return: return"><span class="annotation">@0⦊</span>Eq<span class="annotation">⦉@0</span></span></span></span></div>
+<div class="code" style="counter-reset: line 14"><span class="line">                   <span><span class="code even" style="--layer: 1" title="15:22-15:23: @0[0]: _0 = const 1_u8
+15:25-15:25: @0.Return: return"><span class="annotation">@0⦊</span>‸<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">{ 1 }</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.foo.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.e.-------.InstrumentCoverage.0.html
similarity index 80%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.foo.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.e.-------.InstrumentCoverage.0.html
index dea4560ea56a7..ee3b7b1d7ffc7 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.foo.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.e.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.e.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>async.foo - Coverage Spans</title>
+<title>async.e - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,6 +69,6 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 6"><span class="line"><span class="code" style="--layer: 0">async fn foo() -&gt; [bool; 10] { [false; 10] }</span><span><span class="code even" style="--layer: 1" title="7:45-7:45: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<div class="code" style="counter-reset: line 14"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>async fn e() -&gt; u8 <span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">{ 1 }</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#0}.-------.InstrumentCoverage.0.html
index 4689c34ca0fba..8f61257ca1bac 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,21 +69,16 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 13"><span class="line">                                 <span class="code" style="--layer: 0">{</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="15:38-15:74: @1[3]: _15 = (move _16,)
-15:38-15:74: @1[5]: FakeRead(ForMatchedPlace, _15)
-15:38-15:74: @1[7]: _27 = (_15.0: &amp;std::fmt::Arguments)
-15:38-15:74: @1[10]: _29 = &amp;(*_27)
-15:38-15:74: @1[12]: _30 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-15:38-15:74: @1.Call: _28 = ArgumentV1::new::&lt;Arguments&gt;(move _29, move _30) -&gt; [return: bb2, unwind: bb4]
-15:38-15:74: @2[2]: _14 = [move _28]
-15:38-15:74: @2[5]: _13 = &amp;_14
-15:38-15:74: @2[6]: _12 = &amp;(*_13)
-15:38-15:74: @2[7]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-15:38-15:74: @2.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb3, unwind: bb4]
-15:37-15:74: @3[2]: _5 = &amp;_6
-15:37-15:74: @3[3]: _4 = &amp;(*_5)
-15:9-15:75: @3.Call: begin_panic_fmt(move _4) -&gt; bb4"><span class="annotation">@0,1,2,3⦊</span>$crate::rt::begin_panic_fmt(&amp;$crate::format_args!($fmt, $($arg)+))<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span></div>
+<div class="code" style="counter-reset: line 16"><span class="line">        <span><span class="code even" style="--layer: 1" title="17:38-17:74: @1[3]: _13 = (move _14,)
+17:38-17:74: @1[5]: FakeRead(ForMatchedPlace, _13)
+17:38-17:74: @1[7]: _25 = (_13.0: &amp;std::fmt::Arguments)
+17:38-17:74: @1[10]: _27 = &amp;(*_25)
+17:38-17:74: @1[12]: _28 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+17:38-17:74: @1.Call: _26 = ArgumentV1::new::&lt;Arguments&gt;(move _27, move _28) -&gt; [return: bb2, unwind: bb4]
+17:38-17:74: @2[2]: _12 = [move _26]
+17:38-17:74: @2[5]: _11 = &amp;_12
+17:38-17:74: @2[6]: _10 = &amp;(*_11)
+17:38-17:74: @2[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+17:38-17:74: @2.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb3, unwind: bb4]"><span class="annotation">@0,1,2,3⦊</span>‸<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">$crate::panicking::panic_fmt($crate::format_args!($fmt, $($arg)+))</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#1}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#1}.-------.InstrumentCoverage.0.html
index ccfb1dd0a37c3..923c669e72d11 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#1}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#1}.-------.InstrumentCoverage.0.html
@@ -69,21 +69,16 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 13"><span class="line">                                 <span class="code" style="--layer: 0">{</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="15:38-15:74: @1[3]: _15 = (move _16,)
-15:38-15:74: @1[5]: FakeRead(ForMatchedPlace, _15)
-15:38-15:74: @1[7]: _27 = (_15.0: &amp;std::fmt::Arguments)
-15:38-15:74: @1[10]: _29 = &amp;(*_27)
-15:38-15:74: @1[12]: _30 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-15:38-15:74: @1.Call: _28 = ArgumentV1::new::&lt;Arguments&gt;(move _29, move _30) -&gt; [return: bb2, unwind: bb4]
-15:38-15:74: @2[2]: _14 = [move _28]
-15:38-15:74: @2[5]: _13 = &amp;_14
-15:38-15:74: @2[6]: _12 = &amp;(*_13)
-15:38-15:74: @2[7]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-15:38-15:74: @2.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb3, unwind: bb4]
-15:37-15:74: @3[2]: _5 = &amp;_6
-15:37-15:74: @3[3]: _4 = &amp;(*_5)
-15:9-15:75: @3.Call: begin_panic_fmt(move _4) -&gt; bb4"><span class="annotation">@0,1,2,3⦊</span>$crate::rt::begin_panic_fmt(&amp;$crate::format_args!($fmt, $($arg)+))<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span></div>
+<div class="code" style="counter-reset: line 16"><span class="line">        <span><span class="code even" style="--layer: 1" title="17:38-17:74: @1[3]: _13 = (move _14,)
+17:38-17:74: @1[5]: FakeRead(ForMatchedPlace, _13)
+17:38-17:74: @1[7]: _25 = (_13.0: &amp;std::fmt::Arguments)
+17:38-17:74: @1[10]: _27 = &amp;(*_25)
+17:38-17:74: @1[12]: _28 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+17:38-17:74: @1.Call: _26 = ArgumentV1::new::&lt;Arguments&gt;(move _27, move _28) -&gt; [return: bb2, unwind: bb4]
+17:38-17:74: @2[2]: _12 = [move _26]
+17:38-17:74: @2[5]: _11 = &amp;_12
+17:38-17:74: @2[6]: _10 = &amp;(*_11)
+17:38-17:74: @2[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+17:38-17:74: @2.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb3, unwind: bb4]"><span class="annotation">@0,1,2,3⦊</span>‸<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">$crate::panicking::panic_fmt($crate::format_args!($fmt, $($arg)+))</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#2}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#2}.-------.InstrumentCoverage.0.html
index 2d402b83081c3..59f62959998ce 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#2}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#2}.-------.InstrumentCoverage.0.html
@@ -69,21 +69,16 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 13"><span class="line">                                 <span class="code" style="--layer: 0">{</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="15:38-15:74: @1[3]: _15 = (move _16,)
-15:38-15:74: @1[5]: FakeRead(ForMatchedPlace, _15)
-15:38-15:74: @1[7]: _27 = (_15.0: &amp;std::fmt::Arguments)
-15:38-15:74: @1[10]: _29 = &amp;(*_27)
-15:38-15:74: @1[12]: _30 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-15:38-15:74: @1.Call: _28 = ArgumentV1::new::&lt;Arguments&gt;(move _29, move _30) -&gt; [return: bb2, unwind: bb4]
-15:38-15:74: @2[2]: _14 = [move _28]
-15:38-15:74: @2[5]: _13 = &amp;_14
-15:38-15:74: @2[6]: _12 = &amp;(*_13)
-15:38-15:74: @2[7]: _11 = move _12 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-15:38-15:74: @2.Call: _6 = Arguments::new_v1(move _7, move _11) -&gt; [return: bb3, unwind: bb4]
-15:37-15:74: @3[2]: _5 = &amp;_6
-15:37-15:74: @3[3]: _4 = &amp;(*_5)
-15:9-15:75: @3.Call: begin_panic_fmt(move _4) -&gt; bb4"><span class="annotation">@0,1,2,3⦊</span>$crate::rt::begin_panic_fmt(&amp;$crate::format_args!($fmt, $($arg)+))<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span></div>
+<div class="code" style="counter-reset: line 16"><span class="line">        <span><span class="code even" style="--layer: 1" title="17:38-17:74: @1[3]: _13 = (move _14,)
+17:38-17:74: @1[5]: FakeRead(ForMatchedPlace, _13)
+17:38-17:74: @1[7]: _25 = (_13.0: &amp;std::fmt::Arguments)
+17:38-17:74: @1[10]: _27 = &amp;(*_25)
+17:38-17:74: @1[12]: _28 = &lt;Arguments as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::fmt::Arguments, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+17:38-17:74: @1.Call: _26 = ArgumentV1::new::&lt;Arguments&gt;(move _27, move _28) -&gt; [return: bb2, unwind: bb4]
+17:38-17:74: @2[2]: _12 = [move _26]
+17:38-17:74: @2[5]: _11 = &amp;_12
+17:38-17:74: @2[6]: _10 = &amp;(*_11)
+17:38-17:74: @2[7]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+17:38-17:74: @2.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb3, unwind: bb4]"><span class="annotation">@0,1,2,3⦊</span>‸<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">$crate::panicking::panic_fmt($crate::format_args!($fmt, $($arg)+))</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#3}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#3}.-------.InstrumentCoverage.0.html
index adba2d9965dbe..996c537225d95 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#3}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#3}.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 52"><span class="line">            <span class="code" style="--layer: 0">|_| </span><span><span class="code even" style="--layer: 1" title="53:17-53:19: @0[0]: _0 = ()
-53:19-53:19: @0.Return: return"><span class="annotation">@0⦊</span>()<span class="annotation">⦉@0</span></span></span></span></div>
+<div class="code" style="counter-reset: line 113"><span class="line">            <span class="code" style="--layer: 0">|_| </span><span><span class="code even" style="--layer: 1" title="114:17-114:19: @0[0]: _0 = ()
+114:19-114:19: @0.Return: return"><span class="annotation">@0⦊</span>()<span class="annotation">⦉@0</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on.-------.InstrumentCoverage.0.html
index 583a67e6c7fb7..0c597d40de04f 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on.-------.InstrumentCoverage.0.html
@@ -69,158 +69,171 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 45"><span class="line">    <span class="code" style="--layer: 0">pub fn block_on&lt;F: Future&gt;(mut future: F) -&gt; F::Output {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)"><span class="annotation">@0,1,2,3,4,5⦊</span>mut future = unsafe { Pin::new_unchecked(&amp;mut future) };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">        static VTABLE: RawWakerVTable = RawWakerVTable::new(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("clone"),</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("wake"),</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("wake_by_ref"),</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">            |_| (),</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">        );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">        let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &amp;VTABLE)) };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="47:54-47:65: @0[2]: _3 = &amp;mut _1
-47:35-47:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
-47:13-47:23: @1[1]: FakeRead(ForLet, _2)
-55:60-55:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
-55:80-55:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
-55:79-55:86: @2[4]: _8 = &amp;(*_9)
-55:79-55:86: @2[5]: _7 = &amp;(*_8)
-55:46-55:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
-55:30-55:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
-55:13-55:18: @4[1]: FakeRead(ForLet, _4)
-56:47-56:53: @4[7]: _12 = &amp;_4
-56:47-56:53: @4[8]: _11 = &amp;(*_12)
-56:27-56:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
-56:13-56:24: @5[1]: FakeRead(ForLet, _10)">        let mut context = Context::from_waker(&amp;waker)<span class="annotation">⦉@0,1,2,3,4,5</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 106"><span class="line">    <span><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)"><span class="annotation">@0,1,2,3,4,5⦊</span>pub fn block_on&lt;F: Future&gt;(mut future: F) -&gt; F::Output {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">        let mut future = unsafe { Pin::new_unchecked(&amp;mut future) };</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">        static VTABLE: RawWakerVTable = RawWakerVTable::new(</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("clone"),</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("wake"),</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">            |_| unimplemented!("wake_by_ref"),</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">            |_| (),</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">        );</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">        let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &amp;VTABLE)) };</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="108:54-108:65: @0[2]: _3 = &amp;mut _1
+108:35-108:66: @0.Call: _2 = Pin::&lt;&amp;mut F&gt;::new_unchecked(move _3) -&gt; [return: bb1, unwind: bb20]
+108:13-108:23: @1[1]: FakeRead(ForLet, _2)
+116:60-116:77: @1.Call: _6 = null::&lt;()&gt;() -&gt; [return: bb2, unwind: bb20]
+116:80-116:86: @2[3]: _9 = const {alloc0: &amp;RawWakerVTable}
+116:79-116:86: @2[4]: _8 = &amp;(*_9)
+116:79-116:86: @2[5]: _7 = &amp;(*_8)
+116:46-116:87: @2.Call: _5 = RawWaker::new(move _6, move _7) -&gt; [return: bb3, unwind: bb20]
+116:30-116:88: @3.Call: _4 = Waker::from_raw(move _5) -&gt; [return: bb4, unwind: bb20]
+116:13-116:18: @4[1]: FakeRead(ForLet, _4)
+117:47-117:53: @4[7]: _12 = &amp;_4
+117:47-117:53: @4[8]: _11 = &amp;(*_12)
+117:27-117:54: @4.Call: _10 = Context::from_waker(move _11) -&gt; [return: bb5, unwind: bb19]
+117:13-117:24: @5[1]: FakeRead(ForLet, _10)">        let mut context = Context::from_waker(&amp;waker)<span class="annotation">⦉@0,1,2,3,4,5</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        loop {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            if let Poll::Ready(</span><span><span class="code odd" style="--layer: 1" title="59:32-59:35: @12[1]: _20 = move ((_14 as Ready).0: &lt;F as std::future::Future&gt;::Output)"><span class="annotation">@10,12,14,15,16,17⦊</span>val<span class="annotation">⦉@10,12,14,15,16,17</span></span></span><span class="code" style="--layer: 0">) = </span><span><span class="code even" style="--layer: 1" title="59:39-59:45: @7[3]: _16 = &amp;mut _2
-59:39-59:54: @7.Call: _15 = Pin::&lt;&amp;mut F&gt;::as_mut(move _16) -&gt; [return: bb8, unwind: bb19]
-59:60-59:72: @8[3]: _18 = &amp;mut _10
-59:60-59:72: @8[4]: _17 = &amp;mut (*_18)
-59:39-59:73: @8.Call: _14 = &lt;F as Future&gt;::poll(move _15, move _17) -&gt; [return: bb9, unwind: bb19]
-59:39-59:73: @9[2]: FakeRead(ForMatchedPlace, _14)"><span class="annotation">@6,7,8,9⦊</span>future.as_mut().poll(&amp;mut context)<span class="annotation">⦉@6,7,8,9</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                break </span><span><span class="code odd" style="--layer: 1" title="60:23-60:26: @12[2]: _0 = move _20"><span class="annotation">@10,12,14,15,16,17⦊</span>val<span class="annotation">⦉@10,12,14,15,16,17</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span><span><span class="code even" style="--layer: 1" title="62:10-62:10: @13.Goto: goto -&gt; bb6"><span class="annotation">@11,13⦊</span>‸<span class="annotation">⦉@11,13</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="63:6-63:6: @17.Return: return"><span class="annotation">@10,12,14,15,16,17⦊</span>‸<span class="annotation">⦉@10,12,14,15,16,17</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">            if let Poll::Ready(</span><span><span class="code odd" style="--layer: 1" title="120:32-120:35: @12[1]: _20 = move ((_14 as Ready).0: &lt;F as std::future::Future&gt;::Output)"><span class="annotation">@10,12,14,15,16,17⦊</span>val<span class="annotation">⦉@10,12,14,15,16,17</span></span></span><span class="code" style="--layer: 0">) = </span><span><span class="code even" style="--layer: 1" title="120:39-120:45: @7[3]: _16 = &amp;mut _2
+120:39-120:54: @7.Call: _15 = Pin::&lt;&amp;mut F&gt;::as_mut(move _16) -&gt; [return: bb8, unwind: bb19]
+120:60-120:72: @8[3]: _18 = &amp;mut _10
+120:60-120:72: @8[4]: _17 = &amp;mut (*_18)
+120:39-120:73: @8.Call: _14 = &lt;F as Future&gt;::poll(move _15, move _17) -&gt; [return: bb9, unwind: bb19]
+120:39-120:73: @9[2]: FakeRead(ForMatchedPlace, _14)"><span class="annotation">@6,7,8,9⦊</span>future.as_mut().poll(&amp;mut context)<span class="annotation">⦉@6,7,8,9</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">                break </span><span><span class="code odd" style="--layer: 1" title="121:23-121:26: @12[2]: _0 = move _20"><span class="annotation">@10,12,14,15,16,17⦊</span>val<span class="annotation">⦉@10,12,14,15,16,17</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="122:14-122:14: @11[0]: _13 = const ()"><span class="annotation">@11,13⦊</span>‸<span class="annotation">⦉@11,13</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        }</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="124:6-124:6: @17.Return: return"><span class="annotation">@10,12,14,15,16,17⦊</span>‸<span class="annotation">⦉@10,12,14,15,16,17</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f-{closure#0}.-------.InstrumentCoverage.0.html
index 7fe94dca7a412..74b62673ac94b 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 4"><span class="line">                   <span class="code" style="--layer: 0">{ </span><span><span class="code even" style="--layer: 1" title="5:22-5:23: @0[0]: _0 = const 1_u8
-5:25-5:25: @0.Return: return"><span class="annotation">@0⦊</span>1 }<span class="annotation">⦉@0</span></span></span></span></div>
+<div class="code" style="counter-reset: line 16"><span class="line">                   <span><span class="code even" style="--layer: 1" title="17:22-17:23: @0[0]: _0 = const 1_u8
+17:25-17:25: @0.Return: return"><span class="annotation">@0⦊</span>‸<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">{ 1 }</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f.-------.InstrumentCoverage.0.html
index f5eddba9d4b5a..a31bca54df2e5 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.f.-------.InstrumentCoverage.0.html
@@ -69,6 +69,6 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">async fn f() -&gt; u8 { 1 }</span><span><span class="code even" style="--layer: 1" title="5:25-5:25: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<div class="code" style="counter-reset: line 16"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>async fn f() -&gt; u8 <span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">{ 1 }</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo-{closure#0}.-------.InstrumentCoverage.0.html
index d3b9609a7f34d..b8c53cccabda1 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 6"><span class="line">                             <span class="code" style="--layer: 0">{ </span><span><span class="code even" style="--layer: 1" title="7:32-7:43: @0[0]: _0 = [const false; 10]
-7:45-7:45: @0.Return: return"><span class="annotation">@0⦊</span>[false; 10] }<span class="annotation">⦉@0</span></span></span></span></div>
+<div class="code" style="counter-reset: line 18"><span class="line">                             <span><span class="code even" style="--layer: 1" title="19:32-19:43: @0[0]: _0 = [const false; 10]
+19:45-19:45: @0.Return: return"><span class="annotation">@0⦊</span>‸<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">{ [false; 10] }</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo.-------.InstrumentCoverage.0.html
index dea4560ea56a7..cf72a9d532c79 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.foo.-------.InstrumentCoverage.0.html
@@ -69,6 +69,6 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 6"><span class="line"><span class="code" style="--layer: 0">async fn foo() -&gt; [bool; 10] { [false; 10] }</span><span><span class="code even" style="--layer: 1" title="7:45-7:45: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<div class="code" style="counter-reset: line 18"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>async fn foo() -&gt; [bool; 10] <span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">{ [false; 10] }</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g-{closure#0}.-------.InstrumentCoverage.0.html
index 9967a387a05db..b10012621b7dd 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,12 +69,14 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 8"><span class="line">                      <span><span class="code even" style="--layer: 1" title="10:11-10:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="10:11-10:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="11:9-11:10: @16[3]: _4 = _3"><span class="annotation">@16⦊</span>y<span class="annotation">⦉@16</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="11:14-11:17: @2.Call: _8 = f() -&gt; [return: bb3, unwind: bb30]
-11:14-11:17: @3[0]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,2,3⦊</span>f()<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0">.await == </span><span><span class="code odd" style="--layer: 1" title="11:27-11:28: @14[2]: _24 = (*_5)"><span class="annotation">@9,12,14,15⦊</span>y<span class="annotation">⦉@9,12,14,15</span></span></span><span><span class="code even" style="--layer: 1" title="11:28-11:28: @17.Goto: goto -&gt; bb1"><span class="annotation">@17⦊</span>‸<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="11:32-11:34: @16[4]: _0 = ()"><span class="annotation">@16⦊</span>()<span class="annotation">⦉@16</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="12:14-12:16: @1[0]: _0 = ()"><span class="annotation">@1⦊</span>()<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<div class="code" style="counter-reset: line 20"><span class="line">                      <span><span class="code even" style="--layer: 1" title="22:11-22:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,3,4⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="22:11-22:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,3,4</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="23:9-23:10: @17[3]: _4 = _3"><span class="annotation">@17⦊</span>y<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="23:14-23:17: @3.Call: _8 = e() -&gt; [return: bb4, unwind: bb58]
+23:14-23:17: @4[0]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,3,4⦊</span>e()<span class="annotation">⦉@0,3,4</span></span></span><span class="code" style="--layer: 0">.await == </span><span><span class="code odd" style="--layer: 1" title="23:27-23:28: @15[2]: _24 = (*_5)"><span class="annotation">@10,13,15,16⦊</span>y<span class="annotation">⦉@10,13,15,16</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code even" style="--layer: 1" title="23:32-23:34: @17[4]: _0 = ()"><span class="annotation">@17⦊</span>()<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="24:9-24:10: @33[3]: _25 = _3"><span class="annotation">@33⦊</span>y<span class="annotation">⦉@33</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="24:14-24:17: @19.Call: _29 = f() -&gt; [return: bb20, unwind: bb51]
+24:14-24:17: @20[0]: FakeRead(ForMatchedPlace, _29)"><span class="annotation">@1,19,20⦊</span>f()<span class="annotation">⦉@1,19,20</span></span></span><span class="code" style="--layer: 0">.await == </span><span><span class="code odd" style="--layer: 1" title="24:27-24:28: @31[2]: _44 = (*_26)"><span class="annotation">@26,29,31,32⦊</span>y<span class="annotation">⦉@26,29,31,32</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code even" style="--layer: 1" title="24:32-24:34: @33[4]: _0 = ()"><span class="annotation">@33⦊</span>()<span class="annotation">⦉@33</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code odd" style="--layer: 1" title="25:14-25:16: @2[0]: _0 = ()"><span class="annotation">@2⦊</span>()<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0">,</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="14:2-14:2: @19.Return: return"><span class="annotation">@18,19⦊</span>‸<span class="annotation">⦉@18,19</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="27:2-27:2: @36.Return: return"><span class="annotation">@35,36⦊</span>‸<span class="annotation">⦉@35,36</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g.-------.InstrumentCoverage.0.html
index 5a43e8162cba8..973995477b9aa 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g.-------.InstrumentCoverage.0.html
@@ -69,11 +69,12 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 8"><span class="line"><span class="code" style="--layer: 0">pub async fn g(x: u8) {</span></span>
+<div class="code" style="counter-reset: line 20"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>pub async fn g(x: u8) <span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">{</span></span>
 <span class="line"><span class="code" style="--layer: 0">    match x {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        y if e().await == y =&gt; (),</span></span>
 <span class="line"><span class="code" style="--layer: 0">        y if f().await == y =&gt; (),</span></span>
 <span class="line"><span class="code" style="--layer: 0">        _ =&gt; (),</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="14:2-14:2: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h-{closure#0}.-------.InstrumentCoverage.0.html
index 986a4b198cbe0..6b4b43f836580 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,12 +69,14 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 17"><span class="line">                     <span><span class="code even" style="--layer: 1" title="19:11-19:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:11-19:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="20:9-20:10: @17[3]: _4 = _3"><span class="annotation">@17⦊</span>y<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="20:14-20:19: @2.Call: _8 = foo() -&gt; [return: bb3, unwind: bb33]
-20:14-20:19: @3[0]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,2,3⦊</span>foo()<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0">.await[</span><span><span class="code odd" style="--layer: 1" title="20:26-20:27: @14[2]: _24 = (*_5)"><span class="annotation">@9,12,14,15,16⦊</span>y<span class="annotation">⦉@9,12,14,15,16</span></span></span><span class="code" style="--layer: 0">]</span><span><span class="code even" style="--layer: 1" title="20:28-20:28: @18.Goto: goto -&gt; bb1"><span class="annotation">@18⦊</span>‸<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="20:32-20:34: @17[4]: _0 = ()"><span class="annotation">@17⦊</span>()<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="21:14-21:16: @1[0]: _0 = ()"><span class="annotation">@1⦊</span>()<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<div class="code" style="counter-reset: line 28"><span class="line">                     <span><span class="code even" style="--layer: 1" title="32:11-32:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,2,3⦊</span>{ // The function signature is counted when called, but the body is not</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="32:11-32:12: @0[3]: FakeRead(ForMatchedPlace, _3)">                       // executed (not awaited) so the open brace has a `0` count (at least when</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="32:11-32:12: @0[3]: FakeRead(ForMatchedPlace, _3)">                       // displayed with `llvm-cov show` in color-mode).</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="32:11-32:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="33:9-33:10: @17[3]: _4 = _3"><span class="annotation">@17⦊</span>y<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="33:14-33:19: @2.Call: _8 = foo() -&gt; [return: bb3, unwind: bb33]
+33:14-33:19: @3[0]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,2,3⦊</span>foo()<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0">.await[</span><span><span class="code odd" style="--layer: 1" title="33:26-33:27: @14[2]: _24 = (*_5)"><span class="annotation">@9,12,14,15,16⦊</span>y<span class="annotation">⦉@9,12,14,15,16</span></span></span><span class="code" style="--layer: 0">] =&gt; </span><span><span class="code even" style="--layer: 1" title="33:32-33:34: @17[4]: _0 = ()"><span class="annotation">@17⦊</span>()<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code odd" style="--layer: 1" title="34:14-34:16: @1[0]: _0 = ()"><span class="annotation">@1⦊</span>()<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">,</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="23:2-23:2: @20.Return: return"><span class="annotation">@19,20⦊</span>‸<span class="annotation">⦉@19,20</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="36:2-36:2: @20.Return: return"><span class="annotation">@19,20⦊</span>‸<span class="annotation">⦉@19,20</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h.-------.InstrumentCoverage.0.html
index aead25eed6436..f2ea01281fe1e 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h.-------.InstrumentCoverage.0.html
@@ -69,11 +69,13 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 17"><span class="line"><span class="code" style="--layer: 0">async fn h(x: usize) {</span></span>
+<div class="code" style="counter-reset: line 28"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>async fn h(x: usize) <span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">{ // The function signature is counted when called, but the body is not</span></span>
+<span class="line"><span class="code" style="--layer: 0">                       // executed (not awaited) so the open brace has a `0` count (at least when</span></span>
+<span class="line"><span class="code" style="--layer: 0">                       // displayed with `llvm-cov show` in color-mode).</span></span>
 <span class="line"><span class="code" style="--layer: 0">    match x {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        y if foo().await[y] =&gt; (),</span></span>
 <span class="line"><span class="code" style="--layer: 0">        _ =&gt; (),</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="23:2-23:2: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i-{closure#0}.-------.InstrumentCoverage.0.html
index ab9bbf85dd7a1..49297870fa0a7 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,14 +69,23 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 24"><span class="line">                  <span><span class="code even" style="--layer: 1" title="26:11-26:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,2,3⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="26:11-26:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="27:9-27:10: @17[3]: _4 = _3"><span class="annotation">@17⦊</span>y<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="27:14-27:17: @2.Call: _8 = f() -&gt; [return: bb3, unwind: bb33]
-27:14-27:17: @3[0]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,2,3⦊</span>f()<span class="annotation">⦉@0,2,3</span></span></span><span class="code" style="--layer: 0">.await == </span><span><span class="code odd" style="--layer: 1" title="27:27-27:28: @14[3]: _25 = (*_5)
-27:27-27:32: @14[4]: _26 = CheckedAdd(_25, const 1_u8)
-27:27-27:32: @15[0]: _24 = move (_26.0: u8)"><span class="annotation">@9,12,14,15,16⦊</span>y + 1<span class="annotation">⦉@9,12,14,15,16</span></span></span><span><span class="code even" style="--layer: 1" title="27:32-27:32: @18.Goto: goto -&gt; bb1"><span class="annotation">@18⦊</span>‸<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="27:36-27:38: @17[4]: _0 = ()"><span class="annotation">@17⦊</span>()<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0">,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code even" style="--layer: 1" title="28:14-28:16: @1[0]: _0 = ()"><span class="annotation">@1⦊</span>()<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<div class="code" style="counter-reset: line 37"><span class="line">                  <span><span class="code even" style="--layer: 1" title="42:11-42:12: @0[3]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0,3,4⦊</span>{ // line coverage is 1, but there are 2 regions:</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="42:11-42:12: @0[3]: FakeRead(ForMatchedPlace, _3)">                    // (a) the function signature, counted when the function is called; and</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="42:11-42:12: @0[3]: FakeRead(ForMatchedPlace, _3)">                    // (b) the open brace for the function body, counted once when the body is</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="42:11-42:12: @0[3]: FakeRead(ForMatchedPlace, _3)">                    // executed asynchronously.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="42:11-42:12: @0[3]: FakeRead(ForMatchedPlace, _3)">    match x<span class="annotation">⦉@0,3,4</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="43:9-43:10: @18[3]: _4 = _3"><span class="annotation">@18,20⦊</span>y<span class="annotation">⦉@18,20</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="43:16-43:17: @3[6]: _9 = _3
+43:14-43:18: @3.Call: _8 = c(move _9) -&gt; [return: bb4, unwind: bb88]
+43:14-43:18: @4[1]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@0,3,4⦊</span>c(x)<span class="annotation">⦉@0,3,4</span></span></span><span class="code" style="--layer: 0">.await == </span><span><span class="code odd" style="--layer: 1" title="43:28-43:29: @15[3]: _26 = (*_5)
+43:28-43:33: @15[4]: _27 = CheckedAdd(_26, const 1_u8)
+43:28-43:33: @16[0]: _25 = move (_27.0: u8)"><span class="annotation">@10,13,15,16,17⦊</span>y + 1<span class="annotation">⦉@10,13,15,16,17</span></span></span><span class="code" style="--layer: 0"> =&gt; { </span><span><span class="code even" style="--layer: 1" title="43:39-43:42: @18.Call: _29 = d() -&gt; [return: bb20, unwind: bb79]
+43:39-43:42: @20[0]: FakeRead(ForMatchedPlace, _29)"><span class="annotation">@18,20⦊</span>d()<span class="annotation">⦉@18,20</span></span></span><span class="code" style="--layer: 0">.await; }</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="44:9-44:10: @48[3]: _44 = _3"><span class="annotation">@48⦊</span>y<span class="annotation">⦉@48</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="44:14-44:17: @33.Call: _48 = f() -&gt; [return: bb34, unwind: bb72]
+44:14-44:17: @34[0]: FakeRead(ForMatchedPlace, _48)"><span class="annotation">@1,33,34⦊</span>f()<span class="annotation">⦉@1,33,34</span></span></span><span class="code" style="--layer: 0">.await == </span><span><span class="code odd" style="--layer: 1" title="44:27-44:28: @45[3]: _64 = (*_45)
+44:27-44:32: @45[4]: _65 = CheckedAdd(_64, const 1_u8)
+44:27-44:32: @46[0]: _63 = move (_65.0: u8)"><span class="annotation">@40,43,45,46,47⦊</span>y + 1<span class="annotation">⦉@40,43,45,46,47</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code even" style="--layer: 1" title="44:36-44:38: @48[4]: _0 = ()"><span class="annotation">@48⦊</span>()<span class="annotation">⦉@48</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code odd" style="--layer: 1" title="45:14-45:16: @2[0]: _0 = ()"><span class="annotation">@2⦊</span>()<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0">,</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="30:2-30:2: @20.Return: return"><span class="annotation">@19,20⦊</span>‸<span class="annotation">⦉@19,20</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="47:2-47:2: @51.Return: return"><span class="annotation">@50,51⦊</span>‸<span class="annotation">⦉@50,51</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i.-------.InstrumentCoverage.0.html
index 0b193f4973e09..e5dc6ecd4eb63 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.i.-------.InstrumentCoverage.0.html
@@ -69,11 +69,15 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 24"><span class="line"><span class="code" style="--layer: 0">async fn i(x: u8) {</span></span>
+<div class="code" style="counter-reset: line 37"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>async fn i(x: u8) <span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">{ // line coverage is 1, but there are 2 regions:</span></span>
+<span class="line"><span class="code" style="--layer: 0">                    // (a) the function signature, counted when the function is called; and</span></span>
+<span class="line"><span class="code" style="--layer: 0">                    // (b) the open brace for the function body, counted once when the body is</span></span>
+<span class="line"><span class="code" style="--layer: 0">                    // executed asynchronously.</span></span>
 <span class="line"><span class="code" style="--layer: 0">    match x {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        y if c(x).await == y + 1 =&gt; { d().await; }</span></span>
 <span class="line"><span class="code" style="--layer: 0">        y if f().await == y + 1 =&gt; (),</span></span>
 <span class="line"><span class="code" style="--layer: 0">        _ =&gt; (),</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="30:2-30:2: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-c.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-c.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..a8e2d7e2f396e
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-c.-------.InstrumentCoverage.0.html
@@ -0,0 +1,92 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-c.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>async.j-c - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 50"><span class="line">    <span><span class="code even" style="--layer: 1" title="52:12-52:13: @0[2]: _3 = _1
+52:12-52:18: @0[3]: _2 = Eq(move _3, const 8_u8)
+52:12-52:18: @0[5]: FakeRead(ForMatchedPlace, _2)"><span class="annotation">@0⦊</span>fn c(x: u8) -&gt; u8 {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="52:12-52:13: @0[2]: _3 = _1
+52:12-52:18: @0[3]: _2 = Eq(move _3, const 8_u8)
+52:12-52:18: @0[5]: FakeRead(ForMatchedPlace, _2)">        if x == 8<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="53:13-53:14: @3[0]: _0 = const 1_u8"><span class="annotation">@1,3⦊</span>1<span class="annotation">⦉@1,3</span></span></span><span class="code" style="--layer: 0"> // This line appears covered, but the 1-character expression span covering the `1`</span></span>
+<span class="line"><span class="code" style="--layer: 0">              // is not executed. (`llvm-cov show` displays a `^0` below the `1` ). This is because</span></span>
+<span class="line"><span class="code" style="--layer: 0">              // `fn j()` executes the open brace for the funciton body, followed by the function's</span></span>
+<span class="line"><span class="code" style="--layer: 0">              // first executable statement, `match x`. Inner function declarations are not</span></span>
+<span class="line"><span class="code" style="--layer: 0">              // "visible" to the MIR for `j()`, so the code region counts all lines between the</span></span>
+<span class="line"><span class="code" style="--layer: 0">              // open brace and the first statement as executed, which is, in a sense, true.</span></span>
+<span class="line"><span class="code" style="--layer: 0">              // `llvm-cov show` overcomes this kind of situation by showing the actual counts</span></span>
+<span class="line"><span class="code" style="--layer: 0">              // of the enclosed coverages, (that is, the `1` expression was not executed, and</span></span>
+<span class="line"><span class="code" style="--layer: 0">              // accurately displays a `0`).</span></span>
+<span class="line"><span class="code" style="--layer: 0">        } else {</span></span>
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="63:13-63:14: @2[0]: _0 = const 0_u8"><span class="annotation">@2⦊</span>0<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        }</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="65:6-65:6: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-d.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-d.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..4eed8ee60dd64
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-d.-------.InstrumentCoverage.0.html
@@ -0,0 +1,75 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-d.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>async.j-d - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 65"><span class="line">    <span><span class="code even" style="--layer: 1" title="66:20-66:21: @0[0]: _0 = const 1_u8
+66:23-66:23: @0.Return: return"><span class="annotation">@0⦊</span>fn d() -&gt; u8 { 1 }<span class="annotation">⦉@0</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-f.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-f.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..6e80c8c786ecb
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-f.-------.InstrumentCoverage.0.html
@@ -0,0 +1,75 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j-f.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>async.j-f - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 66"><span class="line">    <span><span class="code even" style="--layer: 1" title="67:20-67:21: @0[0]: _0 = const 1_u8
+67:23-67:23: @0.Return: return"><span class="annotation">@0⦊</span>fn f() -&gt; u8 { 1 }<span class="annotation">⦉@0</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..7cc751074a077
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j.-------.InstrumentCoverage.0.html
@@ -0,0 +1,108 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.j.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>async.j - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 48"><span class="line"><span><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)"><span class="annotation">@0,3,4,5⦊</span>fn j(x: u8) {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">    // non-async versions of `c()`, `d()`, and `f()` to make it similar to async `i()`.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">    fn c(x: u8) -&gt; u8 {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">        if x == 8 {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">            1 // This line appears covered, but the 1-character expression span covering the `1`</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">              // is not executed. (`llvm-cov show` displays a `^0` below the `1` ). This is because</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">              // `fn j()` executes the open brace for the funciton body, followed by the function's</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">              // first executable statement, `match x`. Inner function declarations are not</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">              // "visible" to the MIR for `j()`, so the code region counts all lines between the</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">              // open brace and the first statement as executed, which is, in a sense, true.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">              // `llvm-cov show` overcomes this kind of situation by showing the actual counts</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">              // of the enclosed coverages, (that is, the `1` expression was not executed, and</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">              // accurately displays a `0`).</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">        } else {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">            0</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">        }</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">    }</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">    fn d() -&gt; u8 { 1 }</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">    fn f() -&gt; u8 { 1 }</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:11-68:12: @0[0]: FakeRead(ForMatchedPlace, _1)">    match x<span class="annotation">⦉@0,3,4,5</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="69:9-69:10: @6[3]: _2 = _1"><span class="annotation">@6,8⦊</span>y<span class="annotation">⦉@6,8</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code even" style="--layer: 1" title="69:16-69:17: @3[5]: _6 = _1
+69:14-69:18: @3.Call: _5 = j::c(move _6) -&gt; [return: bb4, unwind: bb15]
+69:22-69:23: @4[3]: _8 = (*_3)
+69:22-69:27: @4[4]: _9 = CheckedAdd(_8, const 1_u8)
+69:22-69:27: @5[0]: _7 = move (_9.0: u8)
+69:14-69:27: @5[2]: _4 = Eq(move _5, move _7)"><span class="annotation">@0,3,4,5⦊</span>c(x) == y + 1<span class="annotation">⦉@0,3,4,5</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code odd" style="--layer: 1" title="69:33-69:36: @6.Call: _10 = j::d() -&gt; [return: bb8, unwind: bb15]
+69:31-69:39: @8[1]: _0 = const ()"><span class="annotation">@6,8⦊</span>{ d(); }<span class="annotation">⦉@6,8</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="70:9-70:10: @12[3]: _11 = _1"><span class="annotation">@12⦊</span>y<span class="annotation">⦉@12</span></span></span><span class="code" style="--layer: 0"> if </span><span><span class="code odd" style="--layer: 1" title="70:14-70:17: @9.Call: _14 = j::f() -&gt; [return: bb10, unwind: bb15]
+70:21-70:22: @10[2]: _16 = (*_12)
+70:21-70:26: @10[3]: _17 = CheckedAdd(_16, const 1_u8)
+70:21-70:26: @11[0]: _15 = move (_17.0: u8)
+70:14-70:26: @11[2]: _13 = Eq(move _14, move _15)"><span class="annotation">@1,9,10,11⦊</span>f() == y + 1<span class="annotation">⦉@1,9,10,11</span></span></span><span class="code" style="--layer: 0"> =&gt; </span><span><span class="code even" style="--layer: 1" title="70:30-70:32: @12[4]: _0 = ()"><span class="annotation">@12⦊</span>()<span class="annotation">⦉@12</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code odd" style="--layer: 1" title="71:14-71:16: @2[0]: _0 = ()"><span class="annotation">@2⦊</span>()<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="73:2-73:2: @14.Return: return"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.k.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.k.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..5792521bb2c57
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.k.-------.InstrumentCoverage.0.html
@@ -0,0 +1,80 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.k.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>async.k - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 74"><span class="line"><span><span class="code even" style="--layer: 1" title="76:11-76:12: @0[0]: FakeRead(ForMatchedPlace, _1)"><span class="annotation">@0⦊</span>fn k(x: u8) { // unused function</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="76:11-76:12: @0[0]: FakeRead(ForMatchedPlace, _1)">    match x<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        1 =&gt; </span><span><span class="code odd" style="--layer: 1" title="77:14-77:16: @4[0]: _0 = ()"><span class="annotation">@1,4⦊</span>()<span class="annotation">⦉@1,4</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        2 =&gt; </span><span><span class="code even" style="--layer: 1" title="78:14-78:16: @5[0]: _0 = ()"><span class="annotation">@2,5⦊</span>()<span class="annotation">⦉@2,5</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code odd" style="--layer: 1" title="79:14-79:16: @3[0]: _0 = ()"><span class="annotation">@3⦊</span>()<span class="annotation">⦉@3</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="81:2-81:2: @6.Return: return"><span class="annotation">@6⦊</span>‸<span class="annotation">⦉@6</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.l.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.l.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..cd92b88c24cbb
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.l.-------.InstrumentCoverage.0.html
@@ -0,0 +1,80 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.l.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>async.l - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 82"><span class="line"><span><span class="code even" style="--layer: 1" title="84:11-84:12: @0[0]: FakeRead(ForMatchedPlace, _1)"><span class="annotation">@0⦊</span>fn l(x: u8) {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="84:11-84:12: @0[0]: FakeRead(ForMatchedPlace, _1)">    match x<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        1 =&gt; </span><span><span class="code odd" style="--layer: 1" title="85:14-85:16: @4[0]: _0 = ()"><span class="annotation">@1,4⦊</span>()<span class="annotation">⦉@1,4</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        2 =&gt; </span><span><span class="code even" style="--layer: 1" title="86:14-86:16: @5[0]: _0 = ()"><span class="annotation">@2,5⦊</span>()<span class="annotation">⦉@2,5</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _ =&gt; </span><span><span class="code odd" style="--layer: 1" title="87:14-87:16: @3[0]: _0 = ()"><span class="annotation">@3⦊</span>()<span class="annotation">⦉@3</span></span></span><span class="code" style="--layer: 0">,</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="89:2-89:2: @6.Return: return"><span class="annotation">@6⦊</span>‸<span class="annotation">⦉@6</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.main.-------.InstrumentCoverage.0.html
index 007da5c0ec109..2b0eb4f43c786 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.main.-------.InstrumentCoverage.0.html
@@ -69,65 +69,101 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 31"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8,9⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">    let _ = g(10);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">    let _ = h(9);</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">    let mut future = Box::pin(i(8));</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">    executor::block_on(future.as_mut());</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="33:13-33:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb12]
-34:13-34:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb12]
-35:31-35:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb12]
-35:22-35:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb11]
-35:9-35:19: @6[1]: FakeRead(ForLet, _3)
-36:24-36:30: @6[5]: _7 = &amp;mut _3
-36:24-36:39: @6.Call: _6 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _7) -&gt; [return: bb7, unwind: bb10]
-36:5-36:40: @7.Call: _5 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _6) -&gt; [return: bb8, unwind: bb10]
-32:11-37:2: @8[2]: _0 = const ()
-37:2-37:2: @9.Return: return">}<span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9</span></span></span></span></div>
+<div class="code" style="counter-reset: line 90"><span class="line"><span><span class="code even" style="--layer: 1" title="92:13-92:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb14]
+93:13-93:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb14]
+94:31-94:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb14]
+94:22-94:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb13]
+94:9-94:19: @6[1]: FakeRead(ForLet, _3)
+95:5-95:9: @6.Call: _5 = j(const 7_u8) -&gt; [return: bb7, unwind: bb12]
+96:5-96:9: @7.Call: _6 = l(const 6_u8) -&gt; [return: bb8, unwind: bb12]
+97:24-97:30: @8[4]: _9 = &amp;mut _3
+97:24-97:39: @8.Call: _8 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _9) -&gt; [return: bb9, unwind: bb12]
+97:5-97:40: @9.Call: _7 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _8) -&gt; [return: bb10, unwind: bb12]
+91:11-98:2: @10[2]: _0 = const ()
+98:2-98:2: @11.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11⦊</span>fn main() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="92:13-92:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb14]
+93:13-93:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb14]
+94:31-94:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb14]
+94:22-94:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb13]
+94:9-94:19: @6[1]: FakeRead(ForLet, _3)
+95:5-95:9: @6.Call: _5 = j(const 7_u8) -&gt; [return: bb7, unwind: bb12]
+96:5-96:9: @7.Call: _6 = l(const 6_u8) -&gt; [return: bb8, unwind: bb12]
+97:24-97:30: @8[4]: _9 = &amp;mut _3
+97:24-97:39: @8.Call: _8 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _9) -&gt; [return: bb9, unwind: bb12]
+97:5-97:40: @9.Call: _7 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _8) -&gt; [return: bb10, unwind: bb12]
+91:11-98:2: @10[2]: _0 = const ()
+98:2-98:2: @11.Return: return">    let _ = g(10);</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="92:13-92:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb14]
+93:13-93:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb14]
+94:31-94:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb14]
+94:22-94:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb13]
+94:9-94:19: @6[1]: FakeRead(ForLet, _3)
+95:5-95:9: @6.Call: _5 = j(const 7_u8) -&gt; [return: bb7, unwind: bb12]
+96:5-96:9: @7.Call: _6 = l(const 6_u8) -&gt; [return: bb8, unwind: bb12]
+97:24-97:30: @8[4]: _9 = &amp;mut _3
+97:24-97:39: @8.Call: _8 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _9) -&gt; [return: bb9, unwind: bb12]
+97:5-97:40: @9.Call: _7 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _8) -&gt; [return: bb10, unwind: bb12]
+91:11-98:2: @10[2]: _0 = const ()
+98:2-98:2: @11.Return: return">    let _ = h(9);</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="92:13-92:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb14]
+93:13-93:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb14]
+94:31-94:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb14]
+94:22-94:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb13]
+94:9-94:19: @6[1]: FakeRead(ForLet, _3)
+95:5-95:9: @6.Call: _5 = j(const 7_u8) -&gt; [return: bb7, unwind: bb12]
+96:5-96:9: @7.Call: _6 = l(const 6_u8) -&gt; [return: bb8, unwind: bb12]
+97:24-97:30: @8[4]: _9 = &amp;mut _3
+97:24-97:39: @8.Call: _8 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _9) -&gt; [return: bb9, unwind: bb12]
+97:5-97:40: @9.Call: _7 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _8) -&gt; [return: bb10, unwind: bb12]
+91:11-98:2: @10[2]: _0 = const ()
+98:2-98:2: @11.Return: return">    let mut future = Box::pin(i(8));</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="92:13-92:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb14]
+93:13-93:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb14]
+94:31-94:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb14]
+94:22-94:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb13]
+94:9-94:19: @6[1]: FakeRead(ForLet, _3)
+95:5-95:9: @6.Call: _5 = j(const 7_u8) -&gt; [return: bb7, unwind: bb12]
+96:5-96:9: @7.Call: _6 = l(const 6_u8) -&gt; [return: bb8, unwind: bb12]
+97:24-97:30: @8[4]: _9 = &amp;mut _3
+97:24-97:39: @8.Call: _8 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _9) -&gt; [return: bb9, unwind: bb12]
+97:5-97:40: @9.Call: _7 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _8) -&gt; [return: bb10, unwind: bb12]
+91:11-98:2: @10[2]: _0 = const ()
+98:2-98:2: @11.Return: return">    j(7);</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="92:13-92:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb14]
+93:13-93:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb14]
+94:31-94:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb14]
+94:22-94:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb13]
+94:9-94:19: @6[1]: FakeRead(ForLet, _3)
+95:5-95:9: @6.Call: _5 = j(const 7_u8) -&gt; [return: bb7, unwind: bb12]
+96:5-96:9: @7.Call: _6 = l(const 6_u8) -&gt; [return: bb8, unwind: bb12]
+97:24-97:30: @8[4]: _9 = &amp;mut _3
+97:24-97:39: @8.Call: _8 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _9) -&gt; [return: bb9, unwind: bb12]
+97:5-97:40: @9.Call: _7 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _8) -&gt; [return: bb10, unwind: bb12]
+91:11-98:2: @10[2]: _0 = const ()
+98:2-98:2: @11.Return: return">    l(6);</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="92:13-92:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb14]
+93:13-93:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb14]
+94:31-94:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb14]
+94:22-94:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb13]
+94:9-94:19: @6[1]: FakeRead(ForLet, _3)
+95:5-95:9: @6.Call: _5 = j(const 7_u8) -&gt; [return: bb7, unwind: bb12]
+96:5-96:9: @7.Call: _6 = l(const 6_u8) -&gt; [return: bb8, unwind: bb12]
+97:24-97:30: @8[4]: _9 = &amp;mut _3
+97:24-97:39: @8.Call: _8 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _9) -&gt; [return: bb9, unwind: bb12]
+97:5-97:40: @9.Call: _7 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _8) -&gt; [return: bb10, unwind: bb12]
+91:11-98:2: @10[2]: _0 = const ()
+98:2-98:2: @11.Return: return">    executor::block_on(future.as_mut());</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="92:13-92:18: @0.Call: _1 = g(const 10_u8) -&gt; [return: bb1, unwind: bb14]
+93:13-93:17: @2.Call: _2 = h(const 9_usize) -&gt; [return: bb3, unwind: bb14]
+94:31-94:35: @4.Call: _4 = i(const 8_u8) -&gt; [return: bb5, unwind: bb14]
+94:22-94:36: @5.Call: _3 = Box::&lt;impl Future&gt;::pin(move _4) -&gt; [return: bb6, unwind: bb13]
+94:9-94:19: @6[1]: FakeRead(ForLet, _3)
+95:5-95:9: @6.Call: _5 = j(const 7_u8) -&gt; [return: bb7, unwind: bb12]
+96:5-96:9: @7.Call: _6 = l(const 6_u8) -&gt; [return: bb8, unwind: bb12]
+97:24-97:30: @8[4]: _9 = &amp;mut _3
+97:24-97:39: @8.Call: _8 = Pin::&lt;Box&lt;impl Future&gt;&gt;::as_mut(move _9) -&gt; [return: bb9, unwind: bb12]
+97:5-97:40: @9.Call: _7 = block_on::&lt;Pin&lt;&amp;mut impl Future&gt;&gt;(move _8) -&gt; [return: bb10, unwind: bb12]
+91:11-98:2: @10[2]: _0 = const ()
+98:2-98:2: @11.Return: return">}<span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#0}.-------.InstrumentCoverage.0.html
index b68c0a1cabe35..523e839a918dd 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#0}.-------.InstrumentCoverage.0.html
@@ -70,19 +70,23 @@
 </head>
 <body>
 <div class="code" style="counter-reset: line 32"><span class="line">        <span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="35:29-35:30: @0[1]: _2 = const 0_i32
-35:13-35:26: @0[2]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="36:12-36:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
-36:12-36:20: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="37:13-37:27: @3[0]: _2 = const 10_i32
-36:21-38:10: @3[1]: _3 = const ()
-38:10-38:10: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="35:29-35:30: @0[1]: _2 = const 0_i32
+35:13-35:26: @0[2]: FakeRead(ForLet, _2)
+36:12-36:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
+36:12-36:20: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="35:29-35:30: @0[1]: _2 = const 0_i32
+35:13-35:26: @0[2]: FakeRead(ForLet, _2)
+36:12-36:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
+36:12-36:20: @0[6]: FakeRead(ForMatchedPlace, _4)">        let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="35:29-35:30: @0[1]: _2 = const 0_i32
+35:13-35:26: @0[2]: FakeRead(ForLet, _2)
+36:12-36:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
+36:12-36:20: @0[6]: FakeRead(ForMatchedPlace, _4)">        if is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="37:13-37:27: @3[0]: _2 = const 10_i32
+36:21-38:10: @3[1]: _3 = const ()"><span class="annotation">@1,3⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="37:13-37:27: @3[0]: _2 = const 10_i32
-36:21-38:10: @3[1]: _3 = const ()
-38:10-38:10: @3.Goto: goto -&gt; bb4">            countdown = 10;</span></span>
+36:21-38:10: @3[1]: _3 = const ()">            countdown = 10;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="37:13-37:27: @3[0]: _2 = const 10_i32
-36:21-38:10: @3[1]: _3 = const ()
-38:10-38:10: @3.Goto: goto -&gt; bb4">        }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="38:10-38:10: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+36:21-38:10: @3[1]: _3 = const ()">        }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="38:10-38:10: @2[0]: _3 = const ()"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="39:9-39:23: @4[4]: _6 = const &quot;alt string 2&quot;
 39:9-39:23: @4[5]: _5 = &amp;(*_6)
 39:9-39:34: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#2}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#10}.-------.InstrumentCoverage.0.html
similarity index 65%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#2}.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#10}.-------.InstrumentCoverage.0.html
index bb95c673a02b0..fdae1a012bc72 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#2}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#10}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%232%7D.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%2310%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>closure.main-{closure#2} - Coverage Spans</title>
+<title>closure.main-{closure#10} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -70,19 +70,23 @@
 </head>
 <body>
 <div class="code" style="counter-reset: line 17"><span class="line">            <span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">            {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                let </span><span><span class="code even" style="--layer: 1" title="20:37-20:38: @0[1]: _2 = const 0_i32
-20:21-20:34: @0[2]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                if </span><span><span class="code even" style="--layer: 1" title="21:20-21:28: @0[5]: _4 = (*(_1.0: &amp;bool))
-21:20-21:28: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="22:21-22:35: @3[0]: _2 = const 10_i32
-21:29-23:18: @3[1]: _3 = const ()
-23:18-23:18: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="20:37-20:38: @0[1]: _2 = const 0_i32
+20:21-20:34: @0[2]: FakeRead(ForLet, _2)
+21:20-21:28: @0[5]: _4 = (*(_1.0: &amp;bool))
+21:20-21:28: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="20:37-20:38: @0[1]: _2 = const 0_i32
+20:21-20:34: @0[2]: FakeRead(ForLet, _2)
+21:20-21:28: @0[5]: _4 = (*(_1.0: &amp;bool))
+21:20-21:28: @0[6]: FakeRead(ForMatchedPlace, _4)">                let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="20:37-20:38: @0[1]: _2 = const 0_i32
+20:21-20:34: @0[2]: FakeRead(ForLet, _2)
+21:20-21:28: @0[5]: _4 = (*(_1.0: &amp;bool))
+21:20-21:28: @0[6]: FakeRead(ForMatchedPlace, _4)">                if is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="22:21-22:35: @3[0]: _2 = const 10_i32
+21:29-23:18: @3[1]: _3 = const ()"><span class="annotation">@1,3⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="22:21-22:35: @3[0]: _2 = const 10_i32
-21:29-23:18: @3[1]: _3 = const ()
-23:18-23:18: @3.Goto: goto -&gt; bb4">                    countdown = 10;</span></span>
+21:29-23:18: @3[1]: _3 = const ()">                    countdown = 10;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="22:21-22:35: @3[0]: _2 = const 10_i32
-21:29-23:18: @3[1]: _3 = const ()
-23:18-23:18: @3.Goto: goto -&gt; bb4">                }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="23:18-23:18: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+21:29-23:18: @3[1]: _3 = const ()">                }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="23:18-23:18: @2[0]: _3 = const ()"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code odd" style="--layer: 1" title="24:17-24:31: @4[4]: _6 = const &quot;alt string 1&quot;
 24:17-24:31: @4[5]: _5 = &amp;(*_6)
 24:17-24:42: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#3}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#11}.-------.InstrumentCoverage.0.html
similarity index 65%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#3}.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#11}.-------.InstrumentCoverage.0.html
index 140e33905fb14..48f3944b8b762 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.closure/closure.main-{closure#3}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#11}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%233%7D.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%2311%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>closure.main-{closure#3} - Coverage Spans</title>
+<title>closure.main-{closure#11} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -70,19 +70,23 @@
 </head>
 <body>
 <div class="code" style="counter-reset: line 59"><span class="line">            <span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">            {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                let </span><span><span class="code even" style="--layer: 1" title="62:37-62:38: @0[1]: _2 = const 0_i32
-62:21-62:34: @0[2]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                if </span><span><span class="code even" style="--layer: 1" title="63:20-63:28: @0[5]: _4 = (*(_1.0: &amp;bool))
-63:20-63:28: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="64:21-64:35: @3[0]: _2 = const 10_i32
-63:29-65:18: @3[1]: _3 = const ()
-65:18-65:18: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="62:37-62:38: @0[1]: _2 = const 0_i32
+62:21-62:34: @0[2]: FakeRead(ForLet, _2)
+63:20-63:28: @0[5]: _4 = (*(_1.0: &amp;bool))
+63:20-63:28: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="62:37-62:38: @0[1]: _2 = const 0_i32
+62:21-62:34: @0[2]: FakeRead(ForLet, _2)
+63:20-63:28: @0[5]: _4 = (*(_1.0: &amp;bool))
+63:20-63:28: @0[6]: FakeRead(ForMatchedPlace, _4)">                let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="62:37-62:38: @0[1]: _2 = const 0_i32
+62:21-62:34: @0[2]: FakeRead(ForLet, _2)
+63:20-63:28: @0[5]: _4 = (*(_1.0: &amp;bool))
+63:20-63:28: @0[6]: FakeRead(ForMatchedPlace, _4)">                if is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="64:21-64:35: @3[0]: _2 = const 10_i32
+63:29-65:18: @3[1]: _3 = const ()"><span class="annotation">@1,3⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="64:21-64:35: @3[0]: _2 = const 10_i32
-63:29-65:18: @3[1]: _3 = const ()
-65:18-65:18: @3.Goto: goto -&gt; bb4">                    countdown = 10;</span></span>
+63:29-65:18: @3[1]: _3 = const ()">                    countdown = 10;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="64:21-64:35: @3[0]: _2 = const 10_i32
-63:29-65:18: @3[1]: _3 = const ()
-65:18-65:18: @3.Goto: goto -&gt; bb4">                }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="65:18-65:18: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+63:29-65:18: @3[1]: _3 = const ()">                }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="65:18-65:18: @2[0]: _3 = const ()"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code odd" style="--layer: 1" title="66:17-66:31: @4[4]: _6 = const &quot;alt string 3&quot;
 66:17-66:31: @4[5]: _5 = &amp;(*_6)
 66:17-66:42: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#1}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#1}.-------.InstrumentCoverage.0.html
index 9358fd4b13670..233ebf11b2cdc 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#1}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#1}.-------.InstrumentCoverage.0.html
@@ -70,19 +70,23 @@
 </head>
 <body>
 <div class="code" style="counter-reset: line 74"><span class="line">        <span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">    {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="77:29-77:30: @0[1]: _2 = const 0_i32
-77:13-77:26: @0[2]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="78:12-78:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
-78:12-78:20: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="79:13-79:27: @3[0]: _2 = const 10_i32
-78:21-80:10: @3[1]: _3 = const ()
-80:10-80:10: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="77:29-77:30: @0[1]: _2 = const 0_i32
+77:13-77:26: @0[2]: FakeRead(ForLet, _2)
+78:12-78:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
+78:12-78:20: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="77:29-77:30: @0[1]: _2 = const 0_i32
+77:13-77:26: @0[2]: FakeRead(ForLet, _2)
+78:12-78:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
+78:12-78:20: @0[6]: FakeRead(ForMatchedPlace, _4)">        let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="77:29-77:30: @0[1]: _2 = const 0_i32
+77:13-77:26: @0[2]: FakeRead(ForLet, _2)
+78:12-78:20: @0[5]: _4 = (*((*_1).0: &amp;bool))
+78:12-78:20: @0[6]: FakeRead(ForMatchedPlace, _4)">        if is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="79:13-79:27: @3[0]: _2 = const 10_i32
+78:21-80:10: @3[1]: _3 = const ()"><span class="annotation">@1,3⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="79:13-79:27: @3[0]: _2 = const 10_i32
-78:21-80:10: @3[1]: _3 = const ()
-80:10-80:10: @3.Goto: goto -&gt; bb4">            countdown = 10;</span></span>
+78:21-80:10: @3[1]: _3 = const ()">            countdown = 10;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="79:13-79:27: @3[0]: _2 = const 10_i32
-78:21-80:10: @3[1]: _3 = const ()
-80:10-80:10: @3.Goto: goto -&gt; bb4">        }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="80:10-80:10: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+78:21-80:10: @3[1]: _3 = const ()">        }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="80:10-80:10: @2[0]: _3 = const ()"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="81:9-81:23: @4[4]: _6 = const &quot;alt string 4&quot;
 81:9-81:23: @4[5]: _5 = &amp;(*_6)
 81:9-81:34: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#2}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#2}.-------.InstrumentCoverage.0.html
index bb95c673a02b0..8fcf91df85b9a 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#2}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#2}.-------.InstrumentCoverage.0.html
@@ -69,27 +69,63 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 17"><span class="line">            <span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">            {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                let </span><span><span class="code even" style="--layer: 1" title="20:37-20:38: @0[1]: _2 = const 0_i32
-20:21-20:34: @0[2]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                if </span><span><span class="code even" style="--layer: 1" title="21:20-21:28: @0[5]: _4 = (*(_1.0: &amp;bool))
-21:20-21:28: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="22:21-22:35: @3[0]: _2 = const 10_i32
-21:29-23:18: @3[1]: _3 = const ()
-23:18-23:18: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="22:21-22:35: @3[0]: _2 = const 10_i32
-21:29-23:18: @3[1]: _3 = const ()
-23:18-23:18: @3.Goto: goto -&gt; bb4">                    countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="22:21-22:35: @3[0]: _2 = const 10_i32
-21:29-23:18: @3[1]: _3 = const ()
-23:18-23:18: @3.Goto: goto -&gt; bb4">                }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="23:18-23:18: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code odd" style="--layer: 1" title="24:17-24:31: @4[4]: _6 = const &quot;alt string 1&quot;
-24:17-24:31: @4[5]: _5 = &amp;(*_6)
-24:17-24:42: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
-25:14-25:14: @5.Return: return"><span class="annotation">@4,5⦊</span>"alt string 1".to_owned()</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="24:17-24:31: @4[4]: _6 = const &quot;alt string 1&quot;
-24:17-24:31: @4[5]: _5 = &amp;(*_6)
-24:17-24:42: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
-25:14-25:14: @5.Return: return">            }<span class="annotation">⦉@4,5</span></span></span></span></div>
+<div class="code" style="counter-reset: line 96"><span class="line">        <span class="code" style="--layer: 0">|val|</span></span>
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="99:29-99:30: @0[1]: _3 = const 0_i32
+99:13-99:26: @0[2]: FakeRead(ForLet, _3)
+100:12-100:20: @0[5]: _5 = (*((*_1).0: &amp;bool))
+100:12-100:20: @0[6]: FakeRead(ForMatchedPlace, _5)"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="99:29-99:30: @0[1]: _3 = const 0_i32
+99:13-99:26: @0[2]: FakeRead(ForLet, _3)
+100:12-100:20: @0[5]: _5 = (*((*_1).0: &amp;bool))
+100:12-100:20: @0[6]: FakeRead(ForMatchedPlace, _5)">        let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="99:29-99:30: @0[1]: _3 = const 0_i32
+99:13-99:26: @0[2]: FakeRead(ForLet, _3)
+100:12-100:20: @0[5]: _5 = (*((*_1).0: &amp;bool))
+100:12-100:20: @0[6]: FakeRead(ForMatchedPlace, _5)">        if is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="101:13-101:27: @3[0]: _3 = const 10_i32
+100:21-102:10: @3[1]: _4 = const ()"><span class="annotation">@1,3⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="101:13-101:27: @3[0]: _3 = const 10_i32
+100:21-102:10: @3[1]: _4 = const ()">            countdown = 10;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="101:13-101:27: @3[0]: _3 = const 10_i32
+100:21-102:10: @3[1]: _4 = const ()">        }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="102:10-102:10: @2[0]: _4 = const ()"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="103:17-103:23: @4[7]: _22 = const main::{closure#2}::promoted[0]
+103:17-103:23: @4[8]: _10 = &amp;(*_22)
+103:17-103:23: @4[9]: _9 = &amp;(*_10)
+103:17-103:23: @4[10]: _8 = move _9 as &amp;[&amp;str] (Pointer(Unsize))
+103:25-103:28: @4[18]: _17 = &amp;_2
+103:9-103:29: @4[19]: _16 = (move _17,)
+103:9-103:29: @4[21]: FakeRead(ForMatchedPlace, _16)
+103:9-103:29: @4[23]: _18 = (_16.0: &amp;&amp;str)
+103:9-103:29: @4[26]: _20 = &amp;(*_18)
+103:9-103:29: @4[28]: _21 = &lt;&amp;str as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r &amp;str, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+103:9-103:29: @4.Call: _19 = ArgumentV1::new::&lt;&amp;str&gt;(move _20, move _21) -&gt; [return: bb5, unwind: bb9]
+103:9-103:29: @5[2]: _15 = [move _19]
+103:9-103:29: @5[5]: _14 = &amp;_15
+103:9-103:29: @5[6]: _13 = &amp;(*_14)
+103:9-103:29: @5[7]: _12 = move _13 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+103:9-103:29: @5.Call: _7 = Arguments::new_v1(move _8, move _12) -&gt; [return: bb6, unwind: bb9]
+103:9-103:29: @6.Call: _6 = format(move _7) -&gt; [return: bb7, unwind: bb9]
+103:9-103:29: @7[1]: FakeRead(ForLet, _6)
+103:9-103:29: @7[6]: _0 = move _6
+104:6-104:6: @8.Return: return"><span class="annotation">@4,5,6,7,8⦊</span>format!("'{}'", val)</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="103:17-103:23: @4[7]: _22 = const main::{closure#2}::promoted[0]
+103:17-103:23: @4[8]: _10 = &amp;(*_22)
+103:17-103:23: @4[9]: _9 = &amp;(*_10)
+103:17-103:23: @4[10]: _8 = move _9 as &amp;[&amp;str] (Pointer(Unsize))
+103:25-103:28: @4[18]: _17 = &amp;_2
+103:9-103:29: @4[19]: _16 = (move _17,)
+103:9-103:29: @4[21]: FakeRead(ForMatchedPlace, _16)
+103:9-103:29: @4[23]: _18 = (_16.0: &amp;&amp;str)
+103:9-103:29: @4[26]: _20 = &amp;(*_18)
+103:9-103:29: @4[28]: _21 = &lt;&amp;str as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r &amp;str, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+103:9-103:29: @4.Call: _19 = ArgumentV1::new::&lt;&amp;str&gt;(move _20, move _21) -&gt; [return: bb5, unwind: bb9]
+103:9-103:29: @5[2]: _15 = [move _19]
+103:9-103:29: @5[5]: _14 = &amp;_15
+103:9-103:29: @5[6]: _13 = &amp;(*_14)
+103:9-103:29: @5[7]: _12 = move _13 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+103:9-103:29: @5.Call: _7 = Arguments::new_v1(move _8, move _12) -&gt; [return: bb6, unwind: bb9]
+103:9-103:29: @6.Call: _6 = format(move _7) -&gt; [return: bb7, unwind: bb9]
+103:9-103:29: @7[1]: FakeRead(ForLet, _6)
+103:9-103:29: @7[6]: _0 = move _6
+104:6-104:6: @8.Return: return">    }<span class="annotation">⦉@4,5,6,7,8</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#3}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#3}.-------.InstrumentCoverage.0.html
index 140e33905fb14..032a6a7e435c1 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#3}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#3}.-------.InstrumentCoverage.0.html
@@ -69,27 +69,25 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 59"><span class="line">            <span class="code" style="--layer: 0">||</span></span>
-<span class="line"><span class="code" style="--layer: 0">            {</span></span>
-<span class="line"><span class="code" style="--layer: 0">                let </span><span><span class="code even" style="--layer: 1" title="62:37-62:38: @0[1]: _2 = const 0_i32
-62:21-62:34: @0[2]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">                if </span><span><span class="code even" style="--layer: 1" title="63:20-63:28: @0[5]: _4 = (*(_1.0: &amp;bool))
-63:20-63:28: @0[6]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="64:21-64:35: @3[0]: _2 = const 10_i32
-63:29-65:18: @3[1]: _3 = const ()
-65:18-65:18: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="64:21-64:35: @3[0]: _2 = const 10_i32
-63:29-65:18: @3[1]: _3 = const ()
-65:18-65:18: @3.Goto: goto -&gt; bb4">                    countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="64:21-64:35: @3[0]: _2 = const 10_i32
-63:29-65:18: @3[1]: _3 = const ()
-65:18-65:18: @3.Goto: goto -&gt; bb4">                }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="65:18-65:18: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code odd" style="--layer: 1" title="66:17-66:31: @4[4]: _6 = const &quot;alt string 3&quot;
-66:17-66:31: @4[5]: _5 = &amp;(*_6)
-66:17-66:42: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
-67:14-67:14: @5.Return: return"><span class="annotation">@4,5⦊</span>"alt string 3".to_owned()</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="66:17-66:31: @4[4]: _6 = const &quot;alt string 3&quot;
-66:17-66:31: @4[5]: _5 = &amp;(*_6)
-66:17-66:42: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
-67:14-67:14: @5.Return: return">            }<span class="annotation">⦉@4,5</span></span></span></span></div>
+<div class="code" style="counter-reset: line 119"><span class="line">        <span class="code" style="--layer: 0">|</span></span>
+<span class="line"><span class="code" style="--layer: 0">            mut countdown</span></span>
+<span class="line"><span class="code" style="--layer: 0">        |</span></span>
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="124:12-124:20: @0[2]: _4 = (*((*_1).0: &amp;bool))
+124:12-124:20: @0[3]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="124:12-124:20: @0[2]: _4 = (*((*_1).0: &amp;bool))
+124:12-124:20: @0[3]: FakeRead(ForMatchedPlace, _4)">        if is_false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="125:13-125:27: @3[0]: _2 = const 10_i32
+124:21-126:10: @3[1]: _3 = const ()"><span class="annotation">@1,3⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="125:13-125:27: @3[0]: _2 = const 10_i32
+124:21-126:10: @3[1]: _3 = const ()">            countdown = 10;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="125:13-125:27: @3[0]: _2 = const 10_i32
+124:21-126:10: @3[1]: _3 = const ()">        }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="126:10-126:10: @2[0]: _3 = const ()"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="127:9-127:35: @4[4]: _6 = const &quot;closure should be unused&quot;
+127:9-127:35: @4[5]: _5 = &amp;(*_6)
+127:9-127:46: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
+128:6-128:6: @5.Return: return"><span class="annotation">@4,5⦊</span>"closure should be unused".to_owned()</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="127:9-127:35: @4[4]: _6 = const &quot;closure should be unused&quot;
+127:9-127:35: @4[5]: _5 = &amp;(*_6)
+127:9-127:46: @4.Call: _0 = &lt;str as ToOwned&gt;::to_owned(move _5) -&gt; [return: bb5, unwind: bb6]
+128:6-128:6: @5.Return: return">    }<span class="annotation">⦉@4,5</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#3}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#4}.-------.InstrumentCoverage.0.html
similarity index 72%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#3}.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#4}.-------.InstrumentCoverage.0.html
index adba2d9965dbe..df0172bdf7067 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.executor-block_on-VTABLE-{closure#3}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#4}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.executor-block_on-VTABLE-%7Bclosure%233%7D.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%234%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>async.executor-block_on-VTABLE-{closure#3} - Coverage Spans</title>
+<title>closure.main-{closure#4} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,7 +69,9 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 52"><span class="line">            <span class="code" style="--layer: 0">|_| </span><span><span class="code even" style="--layer: 1" title="53:17-53:19: @0[0]: _0 = ()
-53:19-53:19: @0.Return: return"><span class="annotation">@0⦊</span>()<span class="annotation">⦉@0</span></span></span></span></div>
+<div class="code" style="counter-reset: line 130"><span class="line">                                <span class="code" style="--layer: 0">| _unused_arg: u8 | </span><span><span class="code even" style="--layer: 1" title="131:53-131:67: @0[0]: _3 = CheckedAdd((*((*_1).0: &amp;mut i32)), const 1_i32)
+131:53-131:67: @1[0]: (*((*_1).0: &amp;mut i32)) = move (_3.0: i32)
+131:53-131:67: @1[1]: _0 = const ()
+131:67-131:67: @1.Return: return"><span class="annotation">@0,1⦊</span>countdown += 1<span class="annotation">⦉@0,1</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#5}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#5}.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..e28038fd3fec6
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#5}.-------.InstrumentCoverage.0.html
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%235%7D.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>closure.main-{closure#5} - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 94"><span class="line">                      <span><span class="code even" style="--layer: 1" title="95:23-97:6: @0[5]: _15 = const main::{closure#5}::promoted[1]
+95:23-97:6: @0[6]: _7 = &amp;(*_15)
+95:23-97:6: @0[7]: _6 = &amp;(*_7)
+95:23-97:6: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+96:28-96:61: @0[14]: _13 = ()
+96:28-96:61: @0[15]: FakeRead(ForMatchedPlace, _13)
+96:28-96:61: @0[16]: _14 = const main::{closure#5}::promoted[0]
+96:28-96:61: @0[17]: _11 = &amp;(*_14)
+96:28-96:61: @0[18]: _10 = &amp;(*_11)
+96:28-96:61: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+96:28-96:61: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+96:9-96:62: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+95:23-97:6: @2[5]: _0 = const ()
+95:23-97:6: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="95:23-97:6: @0[5]: _15 = const main::{closure#5}::promoted[1]
+95:23-97:6: @0[6]: _7 = &amp;(*_15)
+95:23-97:6: @0[7]: _6 = &amp;(*_7)
+95:23-97:6: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+96:28-96:61: @0[14]: _13 = ()
+96:28-96:61: @0[15]: FakeRead(ForMatchedPlace, _13)
+96:28-96:61: @0[16]: _14 = const main::{closure#5}::promoted[0]
+96:28-96:61: @0[17]: _11 = &amp;(*_14)
+96:28-96:61: @0[18]: _10 = &amp;(*_11)
+96:28-96:61: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+96:28-96:61: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+96:9-96:62: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+95:23-97:6: @2[5]: _0 = const ()
+95:23-97:6: @2.Return: return">        $crate::io::_print($crate::format_args_nl!($($arg)*));</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="95:23-97:6: @0[5]: _15 = const main::{closure#5}::promoted[1]
+95:23-97:6: @0[6]: _7 = &amp;(*_15)
+95:23-97:6: @0[7]: _6 = &amp;(*_7)
+95:23-97:6: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+96:28-96:61: @0[14]: _13 = ()
+96:28-96:61: @0[15]: FakeRead(ForMatchedPlace, _13)
+96:28-96:61: @0[16]: _14 = const main::{closure#5}::promoted[0]
+96:28-96:61: @0[17]: _11 = &amp;(*_14)
+96:28-96:61: @0[18]: _10 = &amp;(*_11)
+96:28-96:61: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+96:28-96:61: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+96:9-96:62: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+95:23-97:6: @2[5]: _0 = const ()
+95:23-97:6: @2.Return: return">    }<span class="annotation">⦉@0,1,2</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#8}-clone.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#6}.-------.InstrumentCoverage.0.html
similarity index 60%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#8}-clone.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#6}.-------.InstrumentCoverage.0.html
index 27a2ab71827a0..d479211aa37e5 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.partial_eq/partial_eq.{impl#8}-clone.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#6}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.%7Bimpl%238%7D-clone.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%236%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>partial_eq.{impl#8}-clone - Coverage Spans</title>
+<title>closure.main-{closure#6} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,20 +69,19 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line">         <span><span class="code even" style="--layer: 1" title="4:10-4:15: @0[0]: FakeRead(ForMatchedPlace, (*_1))
-4:10-4:15: @0[2]: _2 = &amp;((*_1).0: usize)
-4:10-4:15: @0[4]: _3 = &amp;((*_1).1: usize)
-4:10-4:15: @0[6]: _4 = &amp;((*_1).2: usize)
-4:10-4:15: @0[10]: _7 = &amp;(*_2)
-4:10-4:15: @0[11]: _6 = &amp;(*_7)
-4:10-4:15: @0.Call: _5 = &lt;usize as Clone&gt;::clone(move _6) -&gt; [return: bb1, unwind: bb4]
-4:10-4:15: @1[4]: _10 = &amp;(*_3)
-4:10-4:15: @1[5]: _9 = &amp;(*_10)
-4:10-4:15: @1.Call: _8 = &lt;usize as Clone&gt;::clone(move _9) -&gt; [return: bb2, unwind: bb4]
-4:10-4:15: @2[4]: _13 = &amp;(*_4)
-4:10-4:15: @2[5]: _12 = &amp;(*_13)
-4:10-4:15: @2.Call: _11 = &lt;usize as Clone&gt;::clone(move _12) -&gt; [return: bb3, unwind: bb4]
-4:10-4:15: @3[1]: _0 = Version { major: move _5, minor: move _8, patch: move _11 }
-4:15-4:15: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>Clone<span class="annotation">⦉@0,1,2,3</span></span></span></span></div>
+<div class="code" style="counter-reset: line 140"><span class="line">                                      <span class="code" style="--layer: 0">| _unused_arg: u8 | </span><span><span class="code even" style="--layer: 1" title="141:70-141:82: @0[5]: _15 = const main::{closure#6}::promoted[1]
+141:70-141:82: @0[6]: _7 = &amp;(*_15)
+141:70-141:82: @0[7]: _6 = &amp;(*_7)
+141:70-141:82: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+141:61-141:83: @0[14]: _13 = ()
+141:61-141:83: @0[15]: FakeRead(ForMatchedPlace, _13)
+141:61-141:83: @0[16]: _14 = const main::{closure#6}::promoted[0]
+141:61-141:83: @0[17]: _11 = &amp;(*_14)
+141:61-141:83: @0[18]: _10 = &amp;(*_11)
+141:61-141:83: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+141:61-141:83: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+141:61-141:83: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+141:61-141:83: @2[5]: _0 = const ()
+141:85-141:85: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{ println!("not called") }<span class="annotation">⦉@0,1,2</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#7}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#7}.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..2734c0b24688c
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#7}.-------.InstrumentCoverage.0.html
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%237%7D.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>closure.main-{closure#7} - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 142"><span class="line">                                   <span class="code" style="--layer: 0">| _unused_arg: u8 | </span><span><span class="code even" style="--layer: 1" title="144:18-144:30: @0[5]: _15 = const main::{closure#7}::promoted[1]
+144:18-144:30: @0[6]: _7 = &amp;(*_15)
+144:18-144:30: @0[7]: _6 = &amp;(*_7)
+144:18-144:30: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+144:9-144:31: @0[14]: _13 = ()
+144:9-144:31: @0[15]: FakeRead(ForMatchedPlace, _13)
+144:9-144:31: @0[16]: _14 = const main::{closure#7}::promoted[0]
+144:9-144:31: @0[17]: _11 = &amp;(*_14)
+144:9-144:31: @0[18]: _10 = &amp;(*_11)
+144:9-144:31: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+144:9-144:31: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+144:9-144:31: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+144:9-144:31: @2[5]: _0 = const ()
+145:6-145:6: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="144:18-144:30: @0[5]: _15 = const main::{closure#7}::promoted[1]
+144:18-144:30: @0[6]: _7 = &amp;(*_15)
+144:18-144:30: @0[7]: _6 = &amp;(*_7)
+144:18-144:30: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+144:9-144:31: @0[14]: _13 = ()
+144:9-144:31: @0[15]: FakeRead(ForMatchedPlace, _13)
+144:9-144:31: @0[16]: _14 = const main::{closure#7}::promoted[0]
+144:9-144:31: @0[17]: _11 = &amp;(*_14)
+144:9-144:31: @0[18]: _10 = &amp;(*_11)
+144:9-144:31: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+144:9-144:31: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+144:9-144:31: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+144:9-144:31: @2[5]: _0 = const ()
+145:6-145:6: @2.Return: return">        println!("not called")</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="144:18-144:30: @0[5]: _15 = const main::{closure#7}::promoted[1]
+144:18-144:30: @0[6]: _7 = &amp;(*_15)
+144:18-144:30: @0[7]: _6 = &amp;(*_7)
+144:18-144:30: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+144:9-144:31: @0[14]: _13 = ()
+144:9-144:31: @0[15]: FakeRead(ForMatchedPlace, _13)
+144:9-144:31: @0[16]: _14 = const main::{closure#7}::promoted[0]
+144:9-144:31: @0[17]: _11 = &amp;(*_14)
+144:9-144:31: @0[18]: _10 = &amp;(*_11)
+144:9-144:31: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+144:9-144:31: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+144:9-144:31: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+144:9-144:31: @2[5]: _0 = const ()
+145:6-145:6: @2.Return: return">    }<span class="annotation">⦉@0,1,2</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.g.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#8}.-------.InstrumentCoverage.0.html
similarity index 58%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.g.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#8}.-------.InstrumentCoverage.0.html
index 5a43e8162cba8..a032df54ea21c 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.g.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#8}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.g.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%238%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>async.g - Coverage Spans</title>
+<title>closure.main-{closure#8} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,11 +69,21 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 8"><span class="line"><span class="code" style="--layer: 0">pub async fn g(x: u8) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    match x {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        y if f().await == y =&gt; (),</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; (),</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="14:2-14:2: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<div class="code" style="counter-reset: line 146"><span class="line">                                   <span class="code" style="--layer: 0">|</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _unused_arg: u8</span></span>
+<span class="line"><span class="code" style="--layer: 0">    | </span><span><span class="code even" style="--layer: 1" title="149:18-149:30: @0[5]: _15 = const main::{closure#8}::promoted[1]
+149:18-149:30: @0[6]: _7 = &amp;(*_15)
+149:18-149:30: @0[7]: _6 = &amp;(*_7)
+149:18-149:30: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+149:9-149:31: @0[14]: _13 = ()
+149:9-149:31: @0[15]: FakeRead(ForMatchedPlace, _13)
+149:9-149:31: @0[16]: _14 = const main::{closure#8}::promoted[0]
+149:9-149:31: @0[17]: _11 = &amp;(*_14)
+149:9-149:31: @0[18]: _10 = &amp;(*_11)
+149:9-149:31: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+149:9-149:31: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+149:9-149:31: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+149:9-149:31: @2[5]: _0 = const ()
+149:33-149:33: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{ println!("not called") }<span class="annotation">⦉@0,1,2</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.h.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#9}.-------.InstrumentCoverage.0.html
similarity index 58%
rename from src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.h.-------.InstrumentCoverage.0.html
rename to src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#9}.-------.InstrumentCoverage.0.html
index aead25eed6436..3c174e03ebe35 100644
--- a/src/test/run-make-fulldeps/coverage-spanview-deadcode/expected_mir_dump.async/async.h.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-{closure#9}.-------.InstrumentCoverage.0.html
@@ -2,7 +2,7 @@
 <!--
 
 Preview this file as rendered HTML from the github source at:
-https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.async/async.h.-------.InstrumentCoverage.0.html
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main-%7Bclosure%239%7D.-------.InstrumentCoverage.0.html
 
 For revisions in Pull Requests (PR):
   * Replace "rust-lang" with the github PR author
@@ -11,7 +11,7 @@
 -->
 <html>
 <head>
-<title>async.h - Coverage Spans</title>
+<title>closure.main-{closure#9} - Coverage Spans</title>
 <style>
     .line {
         counter-increment: line;
@@ -69,11 +69,21 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 17"><span class="line"><span class="code" style="--layer: 0">async fn h(x: usize) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    match x {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        y if foo().await[y] =&gt; (),</span></span>
-<span class="line"><span class="code" style="--layer: 0">        _ =&gt; (),</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="23:2-23:2: @1.Return: return"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span></span></div>
+<div class="code" style="counter-reset: line 150"><span class="line">                                          <span class="code" style="--layer: 0">|</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _unused_arg: u8</span></span>
+<span class="line"><span class="code" style="--layer: 0">    | </span><span><span class="code even" style="--layer: 1" title="153:18-153:30: @0[5]: _15 = const main::{closure#9}::promoted[1]
+153:18-153:30: @0[6]: _7 = &amp;(*_15)
+153:18-153:30: @0[7]: _6 = &amp;(*_7)
+153:18-153:30: @0[8]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
+153:9-153:31: @0[14]: _13 = ()
+153:9-153:31: @0[15]: FakeRead(ForMatchedPlace, _13)
+153:9-153:31: @0[16]: _14 = const main::{closure#9}::promoted[0]
+153:9-153:31: @0[17]: _11 = &amp;(*_14)
+153:9-153:31: @0[18]: _10 = &amp;(*_11)
+153:9-153:31: @0[19]: _9 = move _10 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+153:9-153:31: @0.Call: _4 = Arguments::new_v1(move _5, move _9) -&gt; [return: bb1, unwind: bb3]
+153:9-153:31: @1.Call: _3 = _print(move _4) -&gt; [return: bb2, unwind: bb3]
+153:9-153:31: @2[5]: _0 = const ()
+153:33-153:33: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{ println!("not called") }<span class="annotation">⦉@0,1,2</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main.-------.InstrumentCoverage.0.html
index 2d41918efb2ec..702c7937064b7 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.closure/closure.main.-------.InstrumentCoverage.0.html
@@ -69,4447 +69,10853 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>fn main() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    // dependent conditions.</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    // dependent conditions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    let is_true = std::env::args().len() == 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    let is_true = std::env::args().len() == 1;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    let is_false = ! is_true;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    let is_false = ! is_true;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    let mut some_string = Some(String::from("the string content"));</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    let mut some_string = Some(String::from("the string content"));</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    println!(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    println!(</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        "The string or alt: {}"</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        "The string or alt: {}"</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        ,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        ,</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        some_string</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        some_string</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            .</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">            .</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            unwrap_or_else</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">            unwrap_or_else</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        (</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        (</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span><span class="code" style="--layer: 0">||</span></span>
+3:11-155:2: @41[38]: _0 = const ()">            <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">||</span></span>
 <span class="line"><span class="code" style="--layer: 0">            {</span></span>
 <span class="line"><span class="code" style="--layer: 0">                let mut countdown = 0;</span></span>
 <span class="line"><span class="code" style="--layer: 0">                if is_false {</span></span>
 <span class="line"><span class="code" style="--layer: 0">                    countdown = 10;</span></span>
 <span class="line"><span class="code" style="--layer: 0">                }</span></span>
 <span class="line"><span class="code" style="--layer: 0">                "alt string 1".to_owned()</span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">        )</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        )</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">    );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    );</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">    some_string = Some(String::from("the string content"));</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    some_string = Some(String::from("the string content"));</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">    let</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    let</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">        a</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        a</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">    =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    =</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-3:11-93:2: @33[8]: _0 = const ()">        <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span><span class="code" style="--layer: 0">||</span></span>
+3:11-155:2: @41[38]: _0 = const ()">        <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">||</span></span>
 <span class="line"><span class="code" style="--layer: 0">    {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        let mut countdown = 0;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        if is_false {</span></span>
 <span class="line"><span class="code" style="--layer: 0">            countdown = 10;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        }</span></span>
 <span class="line"><span class="code" style="--layer: 0">        "alt string 2".to_owned()</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span>;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    println!(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    println!(</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        "The string or alt: {}"</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        "The string or alt: {}"</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        ,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        ,</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        some_string</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        some_string</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            .</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">            .</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            unwrap_or_else</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">            unwrap_or_else</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        (</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        (</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            a</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">            a</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        )</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        )</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    );</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    some_string = None;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    some_string = None;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">    println!(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    println!(</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        "The string or alt: {}"</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        "The string or alt: {}"</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        ,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        ,</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        some_string</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        some_string</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            .</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">            .</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            unwrap_or_else</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">            unwrap_or_else</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">        (</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        (</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
-3:11-93:2: @33[8]: _0 = const ()">            <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span><span class="code" style="--layer: 0">||</span></span>
+3:11-155:2: @41[38]: _0 = const ()">            <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">||</span></span>
 <span class="line"><span class="code" style="--layer: 0">            {</span></span>
 <span class="line"><span class="code" style="--layer: 0">                let mut countdown = 0;</span></span>
 <span class="line"><span class="code" style="--layer: 0">                if is_false {</span></span>
 <span class="line"><span class="code" style="--layer: 0">                    countdown = 10;</span></span>
 <span class="line"><span class="code" style="--layer: 0">                }</span></span>
 <span class="line"><span class="code" style="--layer: 0">                "alt string 3".to_owned()</span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">        )</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        )</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">    );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    );</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">    some_string = None;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    some_string = None;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">    let</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    let</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">        a</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">        a</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">    =</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+3:11-155:2: @41[38]: _0 = const ()">    =</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-3:11-93:2: @33[8]: _0 = const ()">        <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span><span class="code" style="--layer: 0">||</span></span>
+3:11-155:2: @41[38]: _0 = const ()">        <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">||</span></span>
 <span class="line"><span class="code" style="--layer: 0">    {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        let mut countdown = 0;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        if is_false {</span></span>
 <span class="line"><span class="code" style="--layer: 0">            countdown = 10;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        }</span></span>
 <span class="line"><span class="code" style="--layer: 0">        "alt string 4".to_owned()</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34⦊</span>;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">    println!(</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">    println!(</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        "The string or alt: {}"</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">        "The string or alt: {}"</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        ,</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">        ,</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        some_string</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">        some_string</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">            .</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">            .</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">            unwrap_or_else</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">            unwrap_or_else</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        (</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">        (</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">            a</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">            a</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">        )</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">        )</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">    );</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb48]
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">    );</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
 7:19-7:35: @1[0]: _3 = &amp;_4
-7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb47]
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 8:22-8:29: @3[3]: _6 = _1
 8:20-8:29: @3[4]: _5 = Not(move _6)
 8:9-8:17: @3[6]: FakeRead(ForLet, _5)
-10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb48]
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
 10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
 10:9-10:24: @5[1]: FakeRead(ForLet, _7)
-12:9-12:32: @5[8]: _102 = const main::promoted[3]
-12:9-12:32: @5[9]: _14 = &amp;(*_102)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
 12:9-12:32: @5[10]: _13 = &amp;(*_14)
 12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
 14:9-14:20: @5[21]: _23 = move _7
-14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb45]
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
 14:9-26:10: @6[2]: _21 = &amp;_22
 11:5-27:7: @6[3]: _20 = (move _21,)
 11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
 11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
 11:5-27:7: @6[10]: _28 = &amp;(*_26)
 11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb44]
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
 11:5-27:7: @7[2]: _19 = [move _27]
 11:5-27:7: @7[5]: _18 = &amp;_19
 11:5-27:7: @7[6]: _17 = &amp;(*_18)
 11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb44]
-11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb44]
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
 11:5-27:7: @10[6]: _9 = const ()
-29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb46]
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
 29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
 33:9-40:6: @14[3]: _33 = &amp;_5
 31:9-31:10: @14[6]: FakeRead(ForLet, _32)
-42:9-42:32: @14[13]: _101 = const main::promoted[2]
-42:9-42:32: @14[14]: _39 = &amp;(*_101)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
 42:9-42:32: @14[15]: _38 = &amp;(*_39)
 42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
 44:9-44:20: @14[26]: _48 = move _7
 48:13-48:14: @14[28]: _49 = _32
-44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb42]
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
 44:9-49:10: @15[2]: _46 = &amp;_47
 41:5-50:7: @15[3]: _45 = (move _46,)
 41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
 41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
 41:5-50:7: @15[10]: _52 = &amp;(*_50)
 41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb41]
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
 41:5-50:7: @16[2]: _44 = [move _51]
 41:5-50:7: @16[5]: _43 = &amp;_44
 41:5-50:7: @16[6]: _42 = &amp;(*_43)
 41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb41]
-41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb41]
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
 41:5-50:7: @19[6]: _34 = const ()
 52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
-54:9-54:32: @21[7]: _100 = const main::promoted[1]
-54:9-54:32: @21[8]: _60 = &amp;(*_100)
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
 54:9-54:32: @21[9]: _59 = &amp;(*_60)
 54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
 56:9-56:20: @21[20]: _69 = move _7
-56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb39]
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
 56:9-68:10: @22[2]: _67 = &amp;_68
 53:5-69:7: @22[3]: _66 = (move _67,)
 53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
 53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
 53:5-69:7: @22[10]: _74 = &amp;(*_72)
 53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb38]
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
 53:5-69:7: @23[2]: _65 = [move _73]
 53:5-69:7: @23[5]: _64 = &amp;_65
 53:5-69:7: @23[6]: _63 = &amp;(*_64)
 53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb38]
-53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb38]
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
 53:5-69:7: @26[6]: _55 = const ()
 71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
 73:9-73:10: @28[6]: FakeRead(ForLet, _77)
-84:9-84:32: @28[13]: _99 = const main::promoted[0]
-84:9-84:32: @28[14]: _84 = &amp;(*_99)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
 84:9-84:32: @28[15]: _83 = &amp;(*_84)
 84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
 86:9-86:20: @28[26]: _93 = move _7
 90:13-90:14: @28[28]: _94 = _77
-86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb36]
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
 86:9-91:10: @29[2]: _91 = &amp;_92
 83:5-92:7: @29[3]: _90 = (move _91,)
 83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
 83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
 83:5-92:7: @29[10]: _97 = &amp;(*_95)
 83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
-83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb35]
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
 83:5-92:7: @30[2]: _89 = [move _96]
 83:5-92:7: @30[5]: _88 = &amp;_89
 83:5-92:7: @30[6]: _87 = &amp;(*_88)
 83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb35]
-83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb35]
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
 83:5-92:7: @33[6]: _79 = const ()
-3:11-93:2: @33[8]: _0 = const ()
-93:2-93:2: @34.Return: return">}<span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34</span></span></span></span></div>
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">    let</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">        quote_closure</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">    =</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+3:11-155:2: @41[38]: _0 = const ()">        <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">|val|</span></span>
+<span class="line"><span class="code" style="--layer: 0">    {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        let mut countdown = 0;</span></span>
+<span class="line"><span class="code" style="--layer: 0">        if is_false {</span></span>
+<span class="line"><span class="code" style="--layer: 0">            countdown = 10;</span></span>
+<span class="line"><span class="code" style="--layer: 0">        }</span></span>
+<span class="line"><span class="code" style="--layer: 0">        format!("'{}'", val)</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">    println!(</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">        "Repeated, quoted string: {:?}"</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">        ,</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">        std::iter::repeat("repeat me")</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">            .take(5)</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">            .map</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">        (</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">            quote_closure</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">        )</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">            .collect::&lt;Vec&lt;_&gt;&gt;()</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">    );</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">    let</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">        _unused_closure</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">    =</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+3:11-155:2: @41[38]: _0 = const ()">        <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">|</span></span>
+<span class="line"><span class="code" style="--layer: 0">            mut countdown</span></span>
+<span class="line"><span class="code" style="--layer: 0">        |</span></span>
+<span class="line"><span class="code" style="--layer: 0">    {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        if is_false {</span></span>
+<span class="line"><span class="code" style="--layer: 0">            countdown = 10;</span></span>
+<span class="line"><span class="code" style="--layer: 0">        }</span></span>
+<span class="line"><span class="code" style="--layer: 0">        "closure should be unused".to_owned()</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+3:11-155:2: @41[38]: _0 = const ()">    let mut countdown = 10;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+3:11-155:2: @41[38]: _0 = const ()">    let _short_unused_closure = <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">| _unused_arg: u8 | countdown += 1</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+3:11-155:2: @41[38]: _0 = const ()">    // Macros can sometimes confuse the coverage results. Compare this next assignment, with an</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+3:11-155:2: @41[38]: _0 = const ()">    // unused closure that invokes the `println!()` macro, with the closure assignment above, that</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+3:11-155:2: @41[38]: _0 = const ()">    // does not use a macro. The closure above correctly shows `0` executions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+3:11-155:2: @41[38]: _0 = const ()">    let _short_unused_closure = <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">| _unused_arg: u8 | println!("not called")</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+3:11-155:2: @41[38]: _0 = const ()">    // The closure assignment above is executed, with a line count of `1`, but the `println!()`</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+3:11-155:2: @41[38]: _0 = const ()">    // could not have been called, and yet, there is no indication that it wasn't...</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+3:11-155:2: @41[38]: _0 = const ()">    // ...but adding block braces gives the expected result, showing the block was not executed.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+3:11-155:2: @41[38]: _0 = const ()">    let _short_unused_closure_block = <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">| _unused_arg: u8 | { println!("not called") }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+3:11-155:2: @41[38]: _0 = const ()">    let _shortish_unused_closure = <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">| _unused_arg: u8 | {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        println!("not called")</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+3:11-155:2: @41[38]: _0 = const ()">    let _as_short_unused_closure = <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">|</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _unused_arg: u8</span></span>
+<span class="line"><span class="code" style="--layer: 0">    | { println!("not called") }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+151:9-151:40: @41[37]: FakeRead(ForLet, _132)
+3:11-155:2: @41[38]: _0 = const ()"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span>;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+151:9-151:40: @41[37]: FakeRead(ForLet, _132)
+3:11-155:2: @41[38]: _0 = const ()"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+151:9-151:40: @41[37]: FakeRead(ForLet, _132)
+3:11-155:2: @41[38]: _0 = const ()">    let _almost_as_short_unused_closure = <span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span><span class="code" style="--layer: 0">|</span></span>
+<span class="line"><span class="code" style="--layer: 0">        _unused_arg: u8</span></span>
+<span class="line"><span class="code" style="--layer: 0">    | { println!("not called") }</span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+151:9-151:40: @41[37]: FakeRead(ForLet, _132)
+3:11-155:2: @41[38]: _0 = const ()
+155:2-155:2: @42.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42⦊</span></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+151:9-151:40: @41[37]: FakeRead(ForLet, _132)
+3:11-155:2: @41[38]: _0 = const ()
+155:2-155:2: @42.Return: return">    ;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb57]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb56]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+8:22-8:29: @3[3]: _6 = _1
+8:20-8:29: @3[4]: _5 = Not(move _6)
+8:9-8:17: @3[6]: FakeRead(ForLet, _5)
+10:32-10:66: @3.Call: _8 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb4, unwind: bb57]
+10:27-10:67: @4[0]: _7 = Option::&lt;String&gt;::Some(move _8)
+10:9-10:24: @5[1]: FakeRead(ForLet, _7)
+12:9-12:32: @5[8]: _137 = const main::promoted[4]
+12:9-12:32: @5[9]: _14 = &amp;(*_137)
+12:9-12:32: @5[10]: _13 = &amp;(*_14)
+12:9-12:32: @5[11]: _12 = move _13 as &amp;[&amp;str] (Pointer(Unsize))
+14:9-14:20: @5[21]: _23 = move _7
+14:9-26:10: @5.Call: _22 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:18:13: 25:14]&gt;(move _23, move _24) -&gt; [return: bb6, unwind: bb54]
+14:9-26:10: @6[2]: _21 = &amp;_22
+11:5-27:7: @6[3]: _20 = (move _21,)
+11:5-27:7: @6[5]: FakeRead(ForMatchedPlace, _20)
+11:5-27:7: @6[7]: _26 = (_20.0: &amp;std::string::String)
+11:5-27:7: @6[10]: _28 = &amp;(*_26)
+11:5-27:7: @6[12]: _29 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+11:5-27:7: @6.Call: _27 = ArgumentV1::new::&lt;String&gt;(move _28, move _29) -&gt; [return: bb7, unwind: bb53]
+11:5-27:7: @7[2]: _19 = [move _27]
+11:5-27:7: @7[5]: _18 = &amp;_19
+11:5-27:7: @7[6]: _17 = &amp;(*_18)
+11:5-27:7: @7[7]: _16 = move _17 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+11:5-27:7: @7.Call: _11 = Arguments::new_v1(move _12, move _16) -&gt; [return: bb8, unwind: bb53]
+11:5-27:7: @8.Call: _10 = _print(move _11) -&gt; [return: bb9, unwind: bb53]
+11:5-27:7: @10[6]: _9 = const ()
+29:24-29:58: @10.Call: _31 = &lt;String as From&lt;&amp;str&gt;&gt;::from(const &quot;the string content&quot;) -&gt; [return: bb11, unwind: bb55]
+29:19-29:59: @11[0]: _30 = Option::&lt;String&gt;::Some(move _31)
+33:9-40:6: @14[3]: _33 = &amp;_5
+31:9-31:10: @14[6]: FakeRead(ForLet, _32)
+42:9-42:32: @14[13]: _136 = const main::promoted[3]
+42:9-42:32: @14[14]: _39 = &amp;(*_136)
+42:9-42:32: @14[15]: _38 = &amp;(*_39)
+42:9-42:32: @14[16]: _37 = move _38 as &amp;[&amp;str] (Pointer(Unsize))
+44:9-44:20: @14[26]: _48 = move _7
+48:13-48:14: @14[28]: _49 = _32
+44:9-49:10: @14.Call: _47 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:33:9: 40:6]&gt;(move _48, move _49) -&gt; [return: bb15, unwind: bb51]
+44:9-49:10: @15[2]: _46 = &amp;_47
+41:5-50:7: @15[3]: _45 = (move _46,)
+41:5-50:7: @15[5]: FakeRead(ForMatchedPlace, _45)
+41:5-50:7: @15[7]: _50 = (_45.0: &amp;std::string::String)
+41:5-50:7: @15[10]: _52 = &amp;(*_50)
+41:5-50:7: @15[12]: _53 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+41:5-50:7: @15.Call: _51 = ArgumentV1::new::&lt;String&gt;(move _52, move _53) -&gt; [return: bb16, unwind: bb50]
+41:5-50:7: @16[2]: _44 = [move _51]
+41:5-50:7: @16[5]: _43 = &amp;_44
+41:5-50:7: @16[6]: _42 = &amp;(*_43)
+41:5-50:7: @16[7]: _41 = move _42 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+41:5-50:7: @16.Call: _36 = Arguments::new_v1(move _37, move _41) -&gt; [return: bb17, unwind: bb50]
+41:5-50:7: @17.Call: _35 = _print(move _36) -&gt; [return: bb18, unwind: bb50]
+41:5-50:7: @19[6]: _34 = const ()
+52:19-52:23: @19[9]: _54 = Option::&lt;String&gt;::None
+54:9-54:32: @21[7]: _135 = const main::promoted[2]
+54:9-54:32: @21[8]: _60 = &amp;(*_135)
+54:9-54:32: @21[9]: _59 = &amp;(*_60)
+54:9-54:32: @21[10]: _58 = move _59 as &amp;[&amp;str] (Pointer(Unsize))
+56:9-56:20: @21[20]: _69 = move _7
+56:9-68:10: @21.Call: _68 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:60:13: 67:14]&gt;(move _69, move _70) -&gt; [return: bb22, unwind: bb48]
+56:9-68:10: @22[2]: _67 = &amp;_68
+53:5-69:7: @22[3]: _66 = (move _67,)
+53:5-69:7: @22[5]: FakeRead(ForMatchedPlace, _66)
+53:5-69:7: @22[7]: _72 = (_66.0: &amp;std::string::String)
+53:5-69:7: @22[10]: _74 = &amp;(*_72)
+53:5-69:7: @22[12]: _75 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+53:5-69:7: @22.Call: _73 = ArgumentV1::new::&lt;String&gt;(move _74, move _75) -&gt; [return: bb23, unwind: bb47]
+53:5-69:7: @23[2]: _65 = [move _73]
+53:5-69:7: @23[5]: _64 = &amp;_65
+53:5-69:7: @23[6]: _63 = &amp;(*_64)
+53:5-69:7: @23[7]: _62 = move _63 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+53:5-69:7: @23.Call: _57 = Arguments::new_v1(move _58, move _62) -&gt; [return: bb24, unwind: bb47]
+53:5-69:7: @24.Call: _56 = _print(move _57) -&gt; [return: bb25, unwind: bb47]
+53:5-69:7: @26[6]: _55 = const ()
+71:19-71:23: @26[9]: _76 = Option::&lt;String&gt;::None
+75:9-82:6: @28[3]: _78 = &amp;_5
+73:9-73:10: @28[6]: FakeRead(ForLet, _77)
+84:9-84:32: @28[13]: _134 = const main::promoted[1]
+84:9-84:32: @28[14]: _84 = &amp;(*_134)
+84:9-84:32: @28[15]: _83 = &amp;(*_84)
+84:9-84:32: @28[16]: _82 = move _83 as &amp;[&amp;str] (Pointer(Unsize))
+86:9-86:20: @28[26]: _93 = move _7
+90:13-90:14: @28[28]: _94 = _77
+86:9-91:10: @28.Call: _92 = Option::&lt;String&gt;::unwrap_or_else::&lt;[closure@../coverage/closure.rs:75:9: 82:6]&gt;(move _93, move _94) -&gt; [return: bb29, unwind: bb45]
+86:9-91:10: @29[2]: _91 = &amp;_92
+83:5-92:7: @29[3]: _90 = (move _91,)
+83:5-92:7: @29[5]: FakeRead(ForMatchedPlace, _90)
+83:5-92:7: @29[7]: _95 = (_90.0: &amp;std::string::String)
+83:5-92:7: @29[10]: _97 = &amp;(*_95)
+83:5-92:7: @29[12]: _98 = &lt;String as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::string::String, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+83:5-92:7: @29.Call: _96 = ArgumentV1::new::&lt;String&gt;(move _97, move _98) -&gt; [return: bb30, unwind: bb44]
+83:5-92:7: @30[2]: _89 = [move _96]
+83:5-92:7: @30[5]: _88 = &amp;_89
+83:5-92:7: @30[6]: _87 = &amp;(*_88)
+83:5-92:7: @30[7]: _86 = move _87 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+83:5-92:7: @30.Call: _81 = Arguments::new_v1(move _82, move _86) -&gt; [return: bb31, unwind: bb44]
+83:5-92:7: @31.Call: _80 = _print(move _81) -&gt; [return: bb32, unwind: bb44]
+83:5-92:7: @33[6]: _79 = const ()
+97:9-104:6: @33[10]: _100 = &amp;_5
+95:9-95:22: @33[13]: FakeRead(ForLet, _99)
+106:9-106:40: @33[20]: _133 = const main::promoted[0]
+106:9-106:40: @33[21]: _106 = &amp;(*_133)
+106:9-106:40: @33[22]: _105 = &amp;(*_106)
+106:9-106:40: @33[23]: _104 = move _105 as &amp;[&amp;str] (Pointer(Unsize))
+108:9-108:39: @33.Call: _117 = std::iter::repeat::&lt;&amp;str&gt;(const &quot;repeat me&quot;) -&gt; [return: bb34, unwind: bb55]
+108:9-109:21: @34.Call: _116 = &lt;std::iter::Repeat&lt;&amp;str&gt; as Iterator&gt;::take(move _117, const 5_usize) -&gt; [return: bb35, unwind: bb55]
+112:13-112:26: @35[2]: _118 = _99
+108:9-113:10: @35.Call: _115 = &lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt; as Iterator&gt;::map::&lt;String, [closure@../coverage/closure.rs:97:9: 104:6]&gt;(move _116, move _118) -&gt; [return: bb36, unwind: bb55]
+108:9-114:33: @36.Call: _114 = &lt;Map&lt;std::iter::Take&lt;std::iter::Repeat&lt;&amp;str&gt;&gt;, [closure@../coverage/closure.rs:97:9: 104:6]&gt; as Iterator&gt;::collect::&lt;Vec&lt;String&gt;&gt;(move _115) -&gt; [return: bb37, unwind: bb55]
+108:9-114:33: @37[1]: _113 = &amp;_114
+105:5-115:7: @37[2]: _112 = (move _113,)
+105:5-115:7: @37[4]: FakeRead(ForMatchedPlace, _112)
+105:5-115:7: @37[6]: _119 = (_112.0: &amp;std::vec::Vec&lt;std::string::String&gt;)
+105:5-115:7: @37[9]: _121 = &amp;(*_119)
+105:5-115:7: @37[11]: _122 = &lt;Vec&lt;String&gt; as Debug&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r std::vec::Vec&lt;std::string::String&gt;, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+105:5-115:7: @37.Call: _120 = ArgumentV1::new::&lt;Vec&lt;String&gt;&gt;(move _121, move _122) -&gt; [return: bb38, unwind: bb43]
+105:5-115:7: @38[2]: _111 = [move _120]
+105:5-115:7: @38[5]: _110 = &amp;_111
+105:5-115:7: @38[6]: _109 = &amp;(*_110)
+105:5-115:7: @38[7]: _108 = move _109 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+105:5-115:7: @38.Call: _103 = Arguments::new_v1(move _104, move _108) -&gt; [return: bb39, unwind: bb43]
+105:5-115:7: @39.Call: _102 = _print(move _103) -&gt; [return: bb40, unwind: bb43]
+105:5-115:7: @41[6]: _101 = const ()
+118:9-118:24: @41[13]: FakeRead(ForLet, _123)
+130:25-130:27: @41[15]: _125 = const 10_i32
+130:9-130:22: @41[16]: FakeRead(ForLet, _125)
+131:33-131:67: @41[19]: _127 = &amp;mut _125
+131:9-131:30: @41[22]: FakeRead(ForLet, _126)
+136:9-136:30: @41[25]: FakeRead(ForLet, _128)
+141:9-141:36: @41[28]: FakeRead(ForLet, _129)
+143:9-143:33: @41[31]: FakeRead(ForLet, _130)
+147:9-147:33: @41[34]: FakeRead(ForLet, _131)
+151:9-151:40: @41[37]: FakeRead(ForLet, _132)
+3:11-155:2: @41[38]: _0 = const ()
+155:2-155:2: @42.Return: return">}<span class="annotation">⦉@0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.conditions/conditions.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.conditions/conditions.main.-------.InstrumentCoverage.0.html
index e6f95385910dc..e16b366e2162e 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.conditions/conditions.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.conditions/conditions.main.-------.InstrumentCoverage.0.html
@@ -69,19 +69,20 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0⦊</span>fn main() <span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">{</span></span>
 <span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="4:25-4:26: @0[1]: _1 = const 0_u32
-4:9-4:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 0<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="5:8-5:12: @0[5]: _3 = const true
-5:8-5:12: @0[6]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0⦊</span>true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="6:9-6:23: @3[0]: _1 = const 10_u32
-5:13-7:6: @3[1]: _2 = const ()
-7:6-7:6: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>{</span></span>
+4:9-4:22: @0[2]: FakeRead(ForLet, _1)
+5:8-5:12: @0[5]: _3 = const true
+5:8-5:12: @0[6]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0⦊</span>mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="4:25-4:26: @0[1]: _1 = const 0_u32
+4:9-4:22: @0[2]: FakeRead(ForLet, _1)
+5:8-5:12: @0[5]: _3 = const true
+5:8-5:12: @0[6]: FakeRead(ForMatchedPlace, _3)">    if true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="6:9-6:23: @3[0]: _1 = const 10_u32
+5:13-7:6: @3[1]: _2 = const ()"><span class="annotation">@1,3⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="6:9-6:23: @3[0]: _1 = const 10_u32
-5:13-7:6: @3[1]: _2 = const ()
-7:6-7:6: @3.Goto: goto -&gt; bb4">        countdown = 10;</span></span>
+5:13-7:6: @3[1]: _2 = const ()">        countdown = 10;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="6:9-6:23: @3[0]: _1 = const 10_u32
-5:13-7:6: @3[1]: _2 = const ()
-7:6-7:6: @3.Goto: goto -&gt; bb4">    }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="7:6-7:6: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+5:13-7:6: @3[1]: _2 = const ()">    }<span class="annotation">⦉@1,3</span></span></span><span><span class="code even" style="--layer: 1" title="7:6-7:6: @2[0]: _2 = const ()"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    const B: u32 = 100;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="10:9-10:10: @25[0]: FakeRead(ForLet, _4)"><span class="annotation">@25⦊</span>x<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0"> = if </span><span><span class="code even" style="--layer: 1" title="10:16-10:25: @4[5]: _6 = _1
@@ -98,16 +99,13 @@
 13:15-13:28: @6[5]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@6⦊</span>countdown &gt; 2<span class="annotation">⦉@6</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="14:12-14:21: @11[5]: _14 = _1
 14:12-14:25: @11[6]: _13 = Lt(move _14, const 1_u32)"><span class="annotation">@9,11⦊</span>countdown &lt; 1<span class="annotation">⦉@9,11</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="14:29-14:38: @18[2]: _16 = _1
-14:29-14:42: @18[3]: _15 = Gt(move _16, const 5_u32)"><span class="annotation">@18⦊</span>countdown &gt; 5<span class="annotation">⦉@18</span></span></span><span><span class="code odd" style="--layer: 1" title="14:42-14:42: @16.Goto: goto -&gt; bb19"><span class="annotation">@16⦊</span>‸<span class="annotation">⦉@16</span></span></span><span><span class="code even" style="--layer: 1" title="14:42-14:42: @17.Goto: goto -&gt; bb19"><span class="annotation">@17⦊</span>‸<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="14:46-14:55: @14[2]: _18 = _1
-14:46-14:60: @14[3]: _17 = Ne(move _18, const 9_u32)"><span class="annotation">@14⦊</span>countdown != 9<span class="annotation">⦉@14</span></span></span><span><span class="code even" style="--layer: 1" title="14:60-14:60: @12.Goto: goto -&gt; bb15"><span class="annotation">@12⦊</span>‸<span class="annotation">⦉@12</span></span></span><span><span class="code odd" style="--layer: 1" title="14:60-14:60: @13.Goto: goto -&gt; bb15"><span class="annotation">@13⦊</span>‸<span class="annotation">⦉@13</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="15:13-15:26: @22[0]: _1 = const 0_u32
-14:61-16:10: @22[1]: _10 = const ()
-16:10-16:10: @22.Goto: goto -&gt; bb23"><span class="annotation">@20,22⦊</span>{</span></span>
+14:29-14:42: @18[3]: _15 = Gt(move _16, const 5_u32)"><span class="annotation">@18⦊</span>countdown &gt; 5<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="14:46-14:55: @14[2]: _18 = _1
+14:46-14:60: @14[3]: _17 = Ne(move _18, const 9_u32)"><span class="annotation">@14⦊</span>countdown != 9<span class="annotation">⦉@14</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="15:13-15:26: @22[0]: _1 = const 0_u32
+14:61-16:10: @22[1]: _10 = const ()"><span class="annotation">@20,22⦊</span>{</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="15:13-15:26: @22[0]: _1 = const 0_u32
-14:61-16:10: @22[1]: _10 = const ()
-16:10-16:10: @22.Goto: goto -&gt; bb23">            countdown = 0;</span></span>
+14:61-16:10: @22[1]: _10 = const ()">            countdown = 0;</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="15:13-15:26: @22[0]: _1 = const 0_u32
-14:61-16:10: @22[1]: _10 = const ()
-16:10-16:10: @22.Goto: goto -&gt; bb23">        }<span class="annotation">⦉@20,22</span></span></span><span><span class="code odd" style="--layer: 1" title="16:10-16:10: @21.Goto: goto -&gt; bb23"><span class="annotation">@21⦊</span>‸<span class="annotation">⦉@21</span></span></span><span class="code" style="--layer: 0"></span></span>
+14:61-16:10: @22[1]: _10 = const ()">        }<span class="annotation">⦉@20,22</span></span></span><span><span class="code odd" style="--layer: 1" title="16:10-16:10: @21[0]: _10 = const ()"><span class="annotation">@21⦊</span>‸<span class="annotation">⦉@21</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="17:9-17:23: @23[2]: _19 = CheckedSub(_1, const 5_u32)
 17:9-17:23: @24[0]: _1 = move (_19.0: u32)
 18:9-18:18: @24[1]: _4 = _1"><span class="annotation">@23,24⦊</span>countdown -= 5;</span></span>
@@ -119,17 +117,18 @@
 <span class="line"><span class="code" style="--layer: 0">    };</span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="23:25-23:26: @25[3]: _21 = const 0_i32
-23:9-23:22: @25[4]: FakeRead(ForLet, _21)"><span class="annotation">@25⦊</span>mut countdown = 0<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="24:8-24:12: @25[7]: _23 = const true
-24:8-24:12: @25[8]: FakeRead(ForMatchedPlace, _23)"><span class="annotation">@25⦊</span>true<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="25:9-25:23: @28[0]: _21 = const 10_i32
-24:13-26:6: @28[1]: _22 = const ()
-26:6-26:6: @28.Goto: goto -&gt; bb29"><span class="annotation">@26,28⦊</span>{</span></span>
+23:9-23:22: @25[4]: FakeRead(ForLet, _21)
+24:8-24:12: @25[7]: _23 = const true
+24:8-24:12: @25[8]: FakeRead(ForMatchedPlace, _23)"><span class="annotation">@25⦊</span>mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="23:25-23:26: @25[3]: _21 = const 0_i32
+23:9-23:22: @25[4]: FakeRead(ForLet, _21)
+24:8-24:12: @25[7]: _23 = const true
+24:8-24:12: @25[8]: FakeRead(ForMatchedPlace, _23)">    if true<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="25:9-25:23: @28[0]: _21 = const 10_i32
+24:13-26:6: @28[1]: _22 = const ()"><span class="annotation">@26,28⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="25:9-25:23: @28[0]: _21 = const 10_i32
-24:13-26:6: @28[1]: _22 = const ()
-26:6-26:6: @28.Goto: goto -&gt; bb29">        countdown = 10;</span></span>
+24:13-26:6: @28[1]: _22 = const ()">        countdown = 10;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="25:9-25:23: @28[0]: _21 = const 10_i32
-24:13-26:6: @28[1]: _22 = const ()
-26:6-26:6: @28.Goto: goto -&gt; bb29">    }<span class="annotation">⦉@26,28</span></span></span><span><span class="code even" style="--layer: 1" title="26:6-26:6: @27.Goto: goto -&gt; bb29"><span class="annotation">@27⦊</span>‸<span class="annotation">⦉@27</span></span></span><span class="code" style="--layer: 0"></span></span>
+24:13-26:6: @28[1]: _22 = const ()">    }<span class="annotation">⦉@26,28</span></span></span><span><span class="code even" style="--layer: 1" title="26:6-26:6: @27[0]: _22 = const ()"><span class="annotation">@27⦊</span>‸<span class="annotation">⦉@27</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="28:8-28:17: @29[5]: _26 = _21
 28:8-28:21: @29[6]: _25 = Gt(move _26, const 7_i32)
@@ -146,16 +145,13 @@
 30:15-30:28: @31[5]: FakeRead(ForMatchedPlace, _28)"><span class="annotation">@31⦊</span>countdown &gt; 2<span class="annotation">⦉@31</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="31:12-31:21: @36[5]: _34 = _21
 31:12-31:25: @36[6]: _33 = Lt(move _34, const 1_i32)"><span class="annotation">@34,36⦊</span>countdown &lt; 1<span class="annotation">⦉@34,36</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="31:29-31:38: @43[2]: _36 = _21
-31:29-31:42: @43[3]: _35 = Gt(move _36, const 5_i32)"><span class="annotation">@43⦊</span>countdown &gt; 5<span class="annotation">⦉@43</span></span></span><span><span class="code even" style="--layer: 1" title="31:42-31:42: @41.Goto: goto -&gt; bb44"><span class="annotation">@41⦊</span>‸<span class="annotation">⦉@41</span></span></span><span><span class="code odd" style="--layer: 1" title="31:42-31:42: @42.Goto: goto -&gt; bb44"><span class="annotation">@42⦊</span>‸<span class="annotation">⦉@42</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="31:46-31:55: @39[2]: _38 = _21
-31:46-31:60: @39[3]: _37 = Ne(move _38, const 9_i32)"><span class="annotation">@39⦊</span>countdown != 9<span class="annotation">⦉@39</span></span></span><span><span class="code odd" style="--layer: 1" title="31:60-31:60: @37.Goto: goto -&gt; bb40"><span class="annotation">@37⦊</span>‸<span class="annotation">⦉@37</span></span></span><span><span class="code even" style="--layer: 1" title="31:60-31:60: @38.Goto: goto -&gt; bb40"><span class="annotation">@38⦊</span>‸<span class="annotation">⦉@38</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="32:13-32:26: @47[0]: _21 = const 0_i32
-31:61-33:10: @47[1]: _30 = const ()
-33:10-33:10: @47.Goto: goto -&gt; bb48"><span class="annotation">@45,47⦊</span>{</span></span>
+31:29-31:42: @43[3]: _35 = Gt(move _36, const 5_i32)"><span class="annotation">@43⦊</span>countdown &gt; 5<span class="annotation">⦉@43</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="31:46-31:55: @39[2]: _38 = _21
+31:46-31:60: @39[3]: _37 = Ne(move _38, const 9_i32)"><span class="annotation">@39⦊</span>countdown != 9<span class="annotation">⦉@39</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="32:13-32:26: @47[0]: _21 = const 0_i32
+31:61-33:10: @47[1]: _30 = const ()"><span class="annotation">@45,47⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="32:13-32:26: @47[0]: _21 = const 0_i32
-31:61-33:10: @47[1]: _30 = const ()
-33:10-33:10: @47.Goto: goto -&gt; bb48">            countdown = 0;</span></span>
+31:61-33:10: @47[1]: _30 = const ()">            countdown = 0;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="32:13-32:26: @47[0]: _21 = const 0_i32
-31:61-33:10: @47[1]: _30 = const ()
-33:10-33:10: @47.Goto: goto -&gt; bb48">        }<span class="annotation">⦉@45,47</span></span></span><span><span class="code even" style="--layer: 1" title="33:10-33:10: @46.Goto: goto -&gt; bb48"><span class="annotation">@46⦊</span>‸<span class="annotation">⦉@46</span></span></span><span class="code" style="--layer: 0"></span></span>
+31:61-33:10: @47[1]: _30 = const ()">        }<span class="annotation">⦉@45,47</span></span></span><span><span class="code even" style="--layer: 1" title="33:10-33:10: @46[0]: _30 = const ()"><span class="annotation">@46⦊</span>‸<span class="annotation">⦉@46</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="34:9-34:23: @48[2]: _39 = CheckedSub(_21, const 5_i32)
 34:9-34:23: @49[0]: _21 = move (_39.0: i32)"><span class="annotation">@48,49⦊</span>countdown -= 5<span class="annotation">⦉@48,49</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
@@ -164,190 +160,167 @@
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="39:8-39:12: @50[4]: _42 = const true
 39:8-39:12: @50[5]: FakeRead(ForMatchedPlace, _42)"><span class="annotation">@50⦊</span>true<span class="annotation">⦉@50</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // Demonstrate the difference with `TerminatorKind::Assert` as of 2020-11-15. Assert is no</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // longer treated as a `BasicCoverageBlock` terminator, which changed the coverage region,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // for the executed `then` block above, to include the closing brace on line 30. That</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // changed the line count, but the coverage code region (for the `else if` condition) is</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // still valid.</span></span>
-<span class="line"><span class="code" style="--layer: 0">        //</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // Note that `if` (then) and `else` blocks include the closing brace in their coverage</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // code regions when the last line in the block ends in a semicolon, because the Rust</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // compiler inserts a `StatementKind::Assign` to assign `const ()` to a `Place`, for the</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // empty value for the executed block. When the last line does not end in a semicolon</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // (that is, when the block actually results in a value), the additional `Assign` is not</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // generated, and the brace is not included.</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="52:29-52:30: @53[1]: _43 = const 0_i32
-52:13-52:26: @53[2]: FakeRead(ForLet, _43)"><span class="annotation">@51,53⦊</span>mut countdown = 0<span class="annotation">⦉@51,53</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="53:12-53:16: @53[5]: _45 = const true
-53:12-53:16: @53[6]: FakeRead(ForMatchedPlace, _45)"><span class="annotation">@51,53⦊</span>true<span class="annotation">⦉@51,53</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="54:13-54:27: @56[0]: _43 = const 10_i32
-53:17-55:10: @56[1]: _44 = const ()
-55:10-55:10: @56.Goto: goto -&gt; bb57"><span class="annotation">@54,56⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="54:13-54:27: @56[0]: _43 = const 10_i32
-53:17-55:10: @56[1]: _44 = const ()
-55:10-55:10: @56.Goto: goto -&gt; bb57">            countdown = 10;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="54:13-54:27: @56[0]: _43 = const 10_i32
-53:17-55:10: @56[1]: _44 = const ()
-55:10-55:10: @56.Goto: goto -&gt; bb57">        }<span class="annotation">⦉@54,56</span></span></span><span><span class="code even" style="--layer: 1" title="55:10-55:10: @55.Goto: goto -&gt; bb57"><span class="annotation">@55⦊</span>‸<span class="annotation">⦉@55</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="40:29-40:30: @53[1]: _43 = const 0_i32
+40:13-40:26: @53[2]: FakeRead(ForLet, _43)
+41:12-41:16: @53[5]: _45 = const true
+41:12-41:16: @53[6]: FakeRead(ForMatchedPlace, _45)"><span class="annotation">@51,53⦊</span>mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="40:29-40:30: @53[1]: _43 = const 0_i32
+40:13-40:26: @53[2]: FakeRead(ForLet, _43)
+41:12-41:16: @53[5]: _45 = const true
+41:12-41:16: @53[6]: FakeRead(ForMatchedPlace, _45)">        if true<span class="annotation">⦉@51,53</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="42:13-42:27: @56[0]: _43 = const 10_i32
+41:17-43:10: @56[1]: _44 = const ()"><span class="annotation">@54,56⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="42:13-42:27: @56[0]: _43 = const 10_i32
+41:17-43:10: @56[1]: _44 = const ()">            countdown = 10;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="42:13-42:27: @56[0]: _43 = const 10_i32
+41:17-43:10: @56[1]: _44 = const ()">        }<span class="annotation">⦉@54,56</span></span></span><span><span class="code even" style="--layer: 1" title="43:10-43:10: @55[0]: _44 = const ()"><span class="annotation">@55⦊</span>‸<span class="annotation">⦉@55</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="57:12-57:21: @57[4]: _47 = _43
-57:12-57:25: @57[5]: _46 = Gt(move _47, const 7_i32)
-57:12-57:25: @57[7]: FakeRead(ForMatchedPlace, _46)"><span class="annotation">@57⦊</span>countdown &gt; 7<span class="annotation">⦉@57</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="58:13-58:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
-58:13-58:27: @61[0]: _43 = move (_48.0: i32)
-57:26-59:10: @61[1]: _41 = const ()"><span class="annotation">@58,60,61⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="58:13-58:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
-58:13-58:27: @61[0]: _43 = move (_48.0: i32)
-57:26-59:10: @61[1]: _41 = const ()">            countdown -= 4;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="58:13-58:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
-58:13-58:27: @61[0]: _43 = move (_48.0: i32)
-57:26-59:10: @61[1]: _41 = const ()">        }<span class="annotation">⦉@58,60,61</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        // The closing brace of the `then` branch is now included in the coverage region, and shown</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // as "executed" (giving its line a count of 1 here). Since, in the original version above,</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // the closing brace shares the same line as the `else if` conditional expression (which is</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // not executed if the first `then` condition is true), only the condition's code region is</span></span>
-<span class="line"><span class="code" style="--layer: 0">        // marked with a count of 0 now.</span></span>
-<span class="line"><span class="code" style="--layer: 0">        else if </span><span><span class="code odd" style="--layer: 1" title="65:17-65:26: @59[2]: _50 = _43
-65:17-65:30: @59[3]: _49 = Gt(move _50, const 2_i32)
-65:17-65:30: @59[5]: FakeRead(ForMatchedPlace, _49)"><span class="annotation">@59⦊</span>countdown &gt; 2<span class="annotation">⦉@59</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            if </span><span><span class="code even" style="--layer: 1" title="66:16-66:25: @64[5]: _55 = _43
-66:16-66:29: @64[6]: _54 = Lt(move _55, const 1_i32)"><span class="annotation">@62,64⦊</span>countdown &lt; 1<span class="annotation">⦉@62,64</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="66:33-66:42: @71[2]: _57 = _43
-66:33-66:46: @71[3]: _56 = Gt(move _57, const 5_i32)"><span class="annotation">@71⦊</span>countdown &gt; 5<span class="annotation">⦉@71</span></span></span><span><span class="code even" style="--layer: 1" title="66:46-66:46: @69.Goto: goto -&gt; bb72"><span class="annotation">@69⦊</span>‸<span class="annotation">⦉@69</span></span></span><span><span class="code odd" style="--layer: 1" title="66:46-66:46: @70.Goto: goto -&gt; bb72"><span class="annotation">@70⦊</span>‸<span class="annotation">⦉@70</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="66:50-66:59: @67[2]: _59 = _43
-66:50-66:64: @67[3]: _58 = Ne(move _59, const 9_i32)"><span class="annotation">@67⦊</span>countdown != 9<span class="annotation">⦉@67</span></span></span><span><span class="code odd" style="--layer: 1" title="66:64-66:64: @65.Goto: goto -&gt; bb68"><span class="annotation">@65⦊</span>‸<span class="annotation">⦉@65</span></span></span><span><span class="code even" style="--layer: 1" title="66:64-66:64: @66.Goto: goto -&gt; bb68"><span class="annotation">@66⦊</span>‸<span class="annotation">⦉@66</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="67:17-67:30: @75[0]: _43 = const 0_i32
-66:65-68:14: @75[1]: _51 = const ()
-68:14-68:14: @75.Goto: goto -&gt; bb76"><span class="annotation">@73,75⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="67:17-67:30: @75[0]: _43 = const 0_i32
-66:65-68:14: @75[1]: _51 = const ()
-68:14-68:14: @75.Goto: goto -&gt; bb76">                countdown = 0;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="67:17-67:30: @75[0]: _43 = const 0_i32
-66:65-68:14: @75[1]: _51 = const ()
-68:14-68:14: @75.Goto: goto -&gt; bb76">            }<span class="annotation">⦉@73,75</span></span></span><span><span class="code even" style="--layer: 1" title="68:14-68:14: @74.Goto: goto -&gt; bb76"><span class="annotation">@74⦊</span>‸<span class="annotation">⦉@74</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="69:13-69:27: @76[2]: _60 = CheckedSub(_43, const 5_i32)
-69:13-69:27: @77[0]: _43 = move (_60.0: i32)"><span class="annotation">@76,77⦊</span>countdown -= 5<span class="annotation">⦉@76,77</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="45:12-45:21: @57[4]: _47 = _43
+45:12-45:25: @57[5]: _46 = Gt(move _47, const 7_i32)
+45:12-45:25: @57[7]: FakeRead(ForMatchedPlace, _46)"><span class="annotation">@57⦊</span>countdown &gt; 7<span class="annotation">⦉@57</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="46:13-46:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
+46:13-46:27: @61[0]: _43 = move (_48.0: i32)
+45:26-47:10: @61[1]: _41 = const ()"><span class="annotation">@58,60,61⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="46:13-46:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
+46:13-46:27: @61[0]: _43 = move (_48.0: i32)
+45:26-47:10: @61[1]: _41 = const ()">            countdown -= 4;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="46:13-46:27: @60[0]: _48 = CheckedSub(_43, const 4_i32)
+46:13-46:27: @61[0]: _43 = move (_48.0: i32)
+45:26-47:10: @61[1]: _41 = const ()">        }<span class="annotation">⦉@58,60,61</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        else if </span><span><span class="code odd" style="--layer: 1" title="48:17-48:26: @59[2]: _50 = _43
+48:17-48:30: @59[3]: _49 = Gt(move _50, const 2_i32)
+48:17-48:30: @59[5]: FakeRead(ForMatchedPlace, _49)"><span class="annotation">@59⦊</span>countdown &gt; 2<span class="annotation">⦉@59</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">            if </span><span><span class="code even" style="--layer: 1" title="49:16-49:25: @64[5]: _55 = _43
+49:16-49:29: @64[6]: _54 = Lt(move _55, const 1_i32)"><span class="annotation">@62,64⦊</span>countdown &lt; 1<span class="annotation">⦉@62,64</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="49:33-49:42: @71[2]: _57 = _43
+49:33-49:46: @71[3]: _56 = Gt(move _57, const 5_i32)"><span class="annotation">@71⦊</span>countdown &gt; 5<span class="annotation">⦉@71</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="49:50-49:59: @67[2]: _59 = _43
+49:50-49:64: @67[3]: _58 = Ne(move _59, const 9_i32)"><span class="annotation">@67⦊</span>countdown != 9<span class="annotation">⦉@67</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="50:17-50:30: @75[0]: _43 = const 0_i32
+49:65-51:14: @75[1]: _51 = const ()"><span class="annotation">@73,75⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="50:17-50:30: @75[0]: _43 = const 0_i32
+49:65-51:14: @75[1]: _51 = const ()">                countdown = 0;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="50:17-50:30: @75[0]: _43 = const 0_i32
+49:65-51:14: @75[1]: _51 = const ()">            }<span class="annotation">⦉@73,75</span></span></span><span><span class="code even" style="--layer: 1" title="51:14-51:14: @74[0]: _51 = const ()"><span class="annotation">@74⦊</span>‸<span class="annotation">⦉@74</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="52:13-52:27: @76[2]: _60 = CheckedSub(_43, const 5_i32)
+52:13-52:27: @77[0]: _43 = move (_60.0: i32)"><span class="annotation">@76,77⦊</span>countdown -= 5<span class="annotation">⦉@76,77</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="71:13-71:19: @63[0]: _0 = const ()"><span class="annotation">@63⦊</span>return<span class="annotation">⦉@63</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="54:13-54:19: @63[0]: _0 = const ()"><span class="annotation">@63⦊</span>return<span class="annotation">⦉@63</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="73:6-73:6: @78.Goto: goto -&gt; bb79"><span class="annotation">@78⦊</span>‸<span class="annotation">⦉@78</span></span></span><span><span class="code even" style="--layer: 1" title="73:6-73:6: @52.Goto: goto -&gt; bb79"><span class="annotation">@52⦊</span>‸<span class="annotation">⦉@52</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="56:6-56:6: @52[0]: _41 = const ()"><span class="annotation">@52⦊</span>‸<span class="annotation">⦉@52</span></span></span><span class="code" style="--layer: 0"> // Note: closing brace shows uncovered (vs. `0` for implicit else) because condition literal</span></span>
+<span class="line"><span class="code" style="--layer: 0">      // `true` was const-evaluated. The compiler knows the `if` block will be executed.</span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="75:25-75:26: @79[3]: _62 = const 0_i32
-75:9-75:22: @79[4]: FakeRead(ForLet, _62)"><span class="annotation">@79⦊</span>mut countdown = 0<span class="annotation">⦉@79</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="76:8-76:12: @79[7]: _64 = const true
-76:8-76:12: @79[8]: FakeRead(ForMatchedPlace, _64)"><span class="annotation">@79⦊</span>true<span class="annotation">⦉@79</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="77:9-77:22: @82[0]: _62 = const 1_i32
-76:13-78:6: @82[1]: _63 = const ()
-78:6-78:6: @82.Goto: goto -&gt; bb83"><span class="annotation">@80,82⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="77:9-77:22: @82[0]: _62 = const 1_i32
-76:13-78:6: @82[1]: _63 = const ()
-78:6-78:6: @82.Goto: goto -&gt; bb83">        countdown = 1;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="77:9-77:22: @82[0]: _62 = const 1_i32
-76:13-78:6: @82[1]: _63 = const ()
-78:6-78:6: @82.Goto: goto -&gt; bb83">    }<span class="annotation">⦉@80,82</span></span></span><span><span class="code odd" style="--layer: 1" title="78:6-78:6: @81.Goto: goto -&gt; bb83"><span class="annotation">@81⦊</span>‸<span class="annotation">⦉@81</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="59:25-59:26: @79[3]: _62 = const 0_i32
+59:9-59:22: @79[4]: FakeRead(ForLet, _62)
+60:8-60:12: @79[7]: _64 = const true
+60:8-60:12: @79[8]: FakeRead(ForMatchedPlace, _64)"><span class="annotation">@79⦊</span>mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="59:25-59:26: @79[3]: _62 = const 0_i32
+59:9-59:22: @79[4]: FakeRead(ForLet, _62)
+60:8-60:12: @79[7]: _64 = const true
+60:8-60:12: @79[8]: FakeRead(ForMatchedPlace, _64)">    if true<span class="annotation">⦉@79</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="61:9-61:22: @82[0]: _62 = const 1_i32
+60:13-62:6: @82[1]: _63 = const ()"><span class="annotation">@80,82⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="61:9-61:22: @82[0]: _62 = const 1_i32
+60:13-62:6: @82[1]: _63 = const ()">        countdown = 1;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="61:9-61:22: @82[0]: _62 = const 1_i32
+60:13-62:6: @82[1]: _63 = const ()">    }<span class="annotation">⦉@80,82</span></span></span><span><span class="code even" style="--layer: 1" title="62:6-62:6: @81[0]: _63 = const ()"><span class="annotation">@81⦊</span>‸<span class="annotation">⦉@81</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="80:9-80:10: @106[0]: FakeRead(ForLet, _65)"><span class="annotation">@106⦊</span>z<span class="annotation">⦉@106</span></span></span><span class="code" style="--layer: 0"> = if </span><span><span class="code odd" style="--layer: 1" title="80:16-80:25: @83[5]: _67 = _62
-80:16-80:29: @83[6]: _66 = Gt(move _67, const 7_i32)
-80:16-80:29: @83[8]: FakeRead(ForMatchedPlace, _66)"><span class="annotation">@83⦊</span>countdown &gt; 7<span class="annotation">⦉@83</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="81:9-81:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
-81:9-81:23: @87[0]: _62 = move (_68.0: i32)
-80:30-82:6: @87[1]: _65 = const ()"><span class="annotation">@84,86,87⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="81:9-81:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
-81:9-81:23: @87[0]: _62 = move (_68.0: i32)
-80:30-82:6: @87[1]: _65 = const ()">        countdown -= 4;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="81:9-81:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
-81:9-81:23: @87[0]: _62 = move (_68.0: i32)
-80:30-82:6: @87[1]: _65 = const ()">    }<span class="annotation">⦉@84,86,87</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code odd" style="--layer: 1" title="82:15-82:24: @85[2]: _70 = _62
-82:15-82:28: @85[3]: _69 = Gt(move _70, const 2_i32)
-82:15-82:28: @85[5]: FakeRead(ForMatchedPlace, _69)"><span class="annotation">@85⦊</span>countdown &gt; 2<span class="annotation">⦉@85</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="83:12-83:21: @90[5]: _75 = _62
-83:12-83:25: @90[6]: _74 = Lt(move _75, const 1_i32)"><span class="annotation">@88,90⦊</span>countdown &lt; 1<span class="annotation">⦉@88,90</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="83:29-83:38: @97[2]: _77 = _62
-83:29-83:42: @97[3]: _76 = Gt(move _77, const 5_i32)"><span class="annotation">@97⦊</span>countdown &gt; 5<span class="annotation">⦉@97</span></span></span><span><span class="code even" style="--layer: 1" title="83:42-83:42: @95.Goto: goto -&gt; bb98"><span class="annotation">@95⦊</span>‸<span class="annotation">⦉@95</span></span></span><span><span class="code odd" style="--layer: 1" title="83:42-83:42: @96.Goto: goto -&gt; bb98"><span class="annotation">@96⦊</span>‸<span class="annotation">⦉@96</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="83:46-83:55: @93[2]: _79 = _62
-83:46-83:60: @93[3]: _78 = Ne(move _79, const 9_i32)"><span class="annotation">@93⦊</span>countdown != 9<span class="annotation">⦉@93</span></span></span><span><span class="code odd" style="--layer: 1" title="83:60-83:60: @91.Goto: goto -&gt; bb94"><span class="annotation">@91⦊</span>‸<span class="annotation">⦉@91</span></span></span><span><span class="code even" style="--layer: 1" title="83:60-83:60: @92.Goto: goto -&gt; bb94"><span class="annotation">@92⦊</span>‸<span class="annotation">⦉@92</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="84:13-84:26: @101[0]: _62 = const 0_i32
-83:61-85:10: @101[1]: _71 = const ()
-85:10-85:10: @101.Goto: goto -&gt; bb102"><span class="annotation">@99,101⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="84:13-84:26: @101[0]: _62 = const 0_i32
-83:61-85:10: @101[1]: _71 = const ()
-85:10-85:10: @101.Goto: goto -&gt; bb102">            countdown = 0;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="84:13-84:26: @101[0]: _62 = const 0_i32
-83:61-85:10: @101[1]: _71 = const ()
-85:10-85:10: @101.Goto: goto -&gt; bb102">        }<span class="annotation">⦉@99,101</span></span></span><span><span class="code even" style="--layer: 1" title="85:10-85:10: @100.Goto: goto -&gt; bb102"><span class="annotation">@100⦊</span>‸<span class="annotation">⦉@100</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="86:9-86:23: @102[2]: _80 = CheckedSub(_62, const 5_i32)
-86:9-86:23: @103[0]: _62 = move (_80.0: i32)"><span class="annotation">@102,103⦊</span>countdown -= 5<span class="annotation">⦉@102,103</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="64:9-64:10: @106[0]: FakeRead(ForLet, _65)"><span class="annotation">@106⦊</span>z<span class="annotation">⦉@106</span></span></span><span class="code" style="--layer: 0"> = if </span><span><span class="code even" style="--layer: 1" title="64:16-64:25: @83[5]: _67 = _62
+64:16-64:29: @83[6]: _66 = Gt(move _67, const 7_i32)
+64:16-64:29: @83[8]: FakeRead(ForMatchedPlace, _66)"><span class="annotation">@83⦊</span>countdown &gt; 7<span class="annotation">⦉@83</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="65:9-65:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
+65:9-65:23: @87[0]: _62 = move (_68.0: i32)
+64:30-66:6: @87[1]: _65 = const ()"><span class="annotation">@84,86,87⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="65:9-65:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
+65:9-65:23: @87[0]: _62 = move (_68.0: i32)
+64:30-66:6: @87[1]: _65 = const ()">        countdown -= 4;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="65:9-65:23: @86[0]: _68 = CheckedSub(_62, const 4_i32)
+65:9-65:23: @87[0]: _62 = move (_68.0: i32)
+64:30-66:6: @87[1]: _65 = const ()">    }<span class="annotation">⦉@84,86,87</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code even" style="--layer: 1" title="66:15-66:24: @85[2]: _70 = _62
+66:15-66:28: @85[3]: _69 = Gt(move _70, const 2_i32)
+66:15-66:28: @85[5]: FakeRead(ForMatchedPlace, _69)"><span class="annotation">@85⦊</span>countdown &gt; 2<span class="annotation">⦉@85</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="67:12-67:21: @90[5]: _75 = _62
+67:12-67:25: @90[6]: _74 = Lt(move _75, const 1_i32)"><span class="annotation">@88,90⦊</span>countdown &lt; 1<span class="annotation">⦉@88,90</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="67:29-67:38: @97[2]: _77 = _62
+67:29-67:42: @97[3]: _76 = Gt(move _77, const 5_i32)"><span class="annotation">@97⦊</span>countdown &gt; 5<span class="annotation">⦉@97</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="67:46-67:55: @93[2]: _79 = _62
+67:46-67:60: @93[3]: _78 = Ne(move _79, const 9_i32)"><span class="annotation">@93⦊</span>countdown != 9<span class="annotation">⦉@93</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="68:13-68:26: @101[0]: _62 = const 0_i32
+67:61-69:10: @101[1]: _71 = const ()"><span class="annotation">@99,101⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:13-68:26: @101[0]: _62 = const 0_i32
+67:61-69:10: @101[1]: _71 = const ()">            countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="68:13-68:26: @101[0]: _62 = const 0_i32
+67:61-69:10: @101[1]: _71 = const ()">        }<span class="annotation">⦉@99,101</span></span></span><span><span class="code odd" style="--layer: 1" title="69:10-69:10: @100[0]: _71 = const ()"><span class="annotation">@100⦊</span>‸<span class="annotation">⦉@100</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="70:9-70:23: @102[2]: _80 = CheckedSub(_62, const 5_i32)
+70:9-70:23: @103[0]: _62 = move (_80.0: i32)"><span class="annotation">@102,103⦊</span>countdown -= 5<span class="annotation">⦉@102,103</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="88:35-88:44: @89[1]: _82 = _62
-88:13-88:32: @89[2]: FakeRead(ForLet, _82)
-89:18-89:27: @89[9]: _113 = const main::promoted[1]
-89:18-89:27: @89[10]: _88 = &amp;(*_113)
-89:18-89:27: @89[11]: _87 = &amp;(*_88)
-89:18-89:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
-89:9-89:29: @89[18]: _94 = ()
-89:9-89:29: @89[19]: FakeRead(ForMatchedPlace, _94)
-89:9-89:29: @89[20]: _112 = const main::promoted[0]
-89:9-89:29: @89[21]: _92 = &amp;(*_112)
-89:9-89:29: @89[22]: _91 = &amp;(*_92)
-89:9-89:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-89:9-89:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
-89:9-89:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
-89:9-89:29: @105[5]: _83 = const ()
-90:9-90:15: @105[7]: _0 = const ()"><span class="annotation">@89,104,105⦊</span>should_be_reachable = countdown;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="88:35-88:44: @89[1]: _82 = _62
-88:13-88:32: @89[2]: FakeRead(ForLet, _82)
-89:18-89:27: @89[9]: _113 = const main::promoted[1]
-89:18-89:27: @89[10]: _88 = &amp;(*_113)
-89:18-89:27: @89[11]: _87 = &amp;(*_88)
-89:18-89:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
-89:9-89:29: @89[18]: _94 = ()
-89:9-89:29: @89[19]: FakeRead(ForMatchedPlace, _94)
-89:9-89:29: @89[20]: _112 = const main::promoted[0]
-89:9-89:29: @89[21]: _92 = &amp;(*_112)
-89:9-89:29: @89[22]: _91 = &amp;(*_92)
-89:9-89:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-89:9-89:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
-89:9-89:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
-89:9-89:29: @105[5]: _83 = const ()
-90:9-90:15: @105[7]: _0 = const ()">        println!("reached");</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="88:35-88:44: @89[1]: _82 = _62
-88:13-88:32: @89[2]: FakeRead(ForLet, _82)
-89:18-89:27: @89[9]: _113 = const main::promoted[1]
-89:18-89:27: @89[10]: _88 = &amp;(*_113)
-89:18-89:27: @89[11]: _87 = &amp;(*_88)
-89:18-89:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
-89:9-89:29: @89[18]: _94 = ()
-89:9-89:29: @89[19]: FakeRead(ForMatchedPlace, _94)
-89:9-89:29: @89[20]: _112 = const main::promoted[0]
-89:9-89:29: @89[21]: _92 = &amp;(*_112)
-89:9-89:29: @89[22]: _91 = &amp;(*_92)
-89:9-89:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
-89:9-89:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
-89:9-89:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
-89:9-89:29: @105[5]: _83 = const ()
-90:9-90:15: @105[7]: _0 = const ()">        return<span class="annotation">⦉@89,104,105</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code odd" style="--layer: 1" title="72:35-72:44: @89[1]: _82 = _62
+72:13-72:32: @89[2]: FakeRead(ForLet, _82)
+73:18-73:27: @89[9]: _113 = const main::promoted[1]
+73:18-73:27: @89[10]: _88 = &amp;(*_113)
+73:18-73:27: @89[11]: _87 = &amp;(*_88)
+73:18-73:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
+73:9-73:29: @89[18]: _94 = ()
+73:9-73:29: @89[19]: FakeRead(ForMatchedPlace, _94)
+73:9-73:29: @89[20]: _112 = const main::promoted[0]
+73:9-73:29: @89[21]: _92 = &amp;(*_112)
+73:9-73:29: @89[22]: _91 = &amp;(*_92)
+73:9-73:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+73:9-73:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
+73:9-73:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
+73:9-73:29: @105[5]: _83 = const ()
+74:9-74:15: @105[7]: _0 = const ()"><span class="annotation">@89,104,105⦊</span>should_be_reachable = countdown;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="72:35-72:44: @89[1]: _82 = _62
+72:13-72:32: @89[2]: FakeRead(ForLet, _82)
+73:18-73:27: @89[9]: _113 = const main::promoted[1]
+73:18-73:27: @89[10]: _88 = &amp;(*_113)
+73:18-73:27: @89[11]: _87 = &amp;(*_88)
+73:18-73:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
+73:9-73:29: @89[18]: _94 = ()
+73:9-73:29: @89[19]: FakeRead(ForMatchedPlace, _94)
+73:9-73:29: @89[20]: _112 = const main::promoted[0]
+73:9-73:29: @89[21]: _92 = &amp;(*_112)
+73:9-73:29: @89[22]: _91 = &amp;(*_92)
+73:9-73:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+73:9-73:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
+73:9-73:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
+73:9-73:29: @105[5]: _83 = const ()
+74:9-74:15: @105[7]: _0 = const ()">        println!("reached");</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="72:35-72:44: @89[1]: _82 = _62
+72:13-72:32: @89[2]: FakeRead(ForLet, _82)
+73:18-73:27: @89[9]: _113 = const main::promoted[1]
+73:18-73:27: @89[10]: _88 = &amp;(*_113)
+73:18-73:27: @89[11]: _87 = &amp;(*_88)
+73:18-73:27: @89[12]: _86 = move _87 as &amp;[&amp;str] (Pointer(Unsize))
+73:9-73:29: @89[18]: _94 = ()
+73:9-73:29: @89[19]: FakeRead(ForMatchedPlace, _94)
+73:9-73:29: @89[20]: _112 = const main::promoted[0]
+73:9-73:29: @89[21]: _92 = &amp;(*_112)
+73:9-73:29: @89[22]: _91 = &amp;(*_92)
+73:9-73:29: @89[23]: _90 = move _91 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+73:9-73:29: @89.Call: _85 = Arguments::new_v1(move _86, move _90) -&gt; [return: bb104, unwind: bb132]
+73:9-73:29: @104.Call: _84 = _print(move _85) -&gt; [return: bb105, unwind: bb132]
+73:9-73:29: @105[5]: _83 = const ()
+74:9-74:15: @105[7]: _0 = const ()">        return<span class="annotation">⦉@89,104,105</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    };</span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="93:9-93:10: @127[0]: FakeRead(ForLet, _95)"><span class="annotation">@127⦊</span>w<span class="annotation">⦉@127</span></span></span><span class="code" style="--layer: 0"> = if </span><span><span class="code even" style="--layer: 1" title="93:16-93:25: @106[5]: _97 = _62
-93:16-93:29: @106[6]: _96 = Gt(move _97, const 7_i32)
-93:16-93:29: @106[8]: FakeRead(ForMatchedPlace, _96)"><span class="annotation">@106⦊</span>countdown &gt; 7<span class="annotation">⦉@106</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="94:9-94:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
-94:9-94:23: @110[0]: _62 = move (_98.0: i32)
-93:30-95:6: @110[1]: _95 = const ()"><span class="annotation">@107,109,110⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="94:9-94:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
-94:9-94:23: @110[0]: _62 = move (_98.0: i32)
-93:30-95:6: @110[1]: _95 = const ()">        countdown -= 4;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="94:9-94:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
-94:9-94:23: @110[0]: _62 = move (_98.0: i32)
-93:30-95:6: @110[1]: _95 = const ()">    }<span class="annotation">⦉@107,109,110</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code even" style="--layer: 1" title="95:15-95:24: @108[2]: _100 = _62
-95:15-95:28: @108[3]: _99 = Gt(move _100, const 2_i32)
-95:15-95:28: @108[5]: FakeRead(ForMatchedPlace, _99)"><span class="annotation">@108⦊</span>countdown &gt; 2<span class="annotation">⦉@108</span></span></span><span class="code" style="--layer: 0"> {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code odd" style="--layer: 1" title="96:12-96:21: @113[5]: _105 = _62
-96:12-96:25: @113[6]: _104 = Lt(move _105, const 1_i32)"><span class="annotation">@111,113⦊</span>countdown &lt; 1<span class="annotation">⦉@111,113</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="96:29-96:38: @120[2]: _107 = _62
-96:29-96:42: @120[3]: _106 = Gt(move _107, const 5_i32)"><span class="annotation">@120⦊</span>countdown &gt; 5<span class="annotation">⦉@120</span></span></span><span><span class="code odd" style="--layer: 1" title="96:42-96:42: @118.Goto: goto -&gt; bb121"><span class="annotation">@118⦊</span>‸<span class="annotation">⦉@118</span></span></span><span><span class="code even" style="--layer: 1" title="96:42-96:42: @119.Goto: goto -&gt; bb121"><span class="annotation">@119⦊</span>‸<span class="annotation">⦉@119</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="96:46-96:55: @116[2]: _109 = _62
-96:46-96:60: @116[3]: _108 = Ne(move _109, const 9_i32)"><span class="annotation">@116⦊</span>countdown != 9<span class="annotation">⦉@116</span></span></span><span><span class="code even" style="--layer: 1" title="96:60-96:60: @114.Goto: goto -&gt; bb117"><span class="annotation">@114⦊</span>‸<span class="annotation">⦉@114</span></span></span><span><span class="code odd" style="--layer: 1" title="96:60-96:60: @115.Goto: goto -&gt; bb117"><span class="annotation">@115⦊</span>‸<span class="annotation">⦉@115</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="97:13-97:26: @124[0]: _62 = const 0_i32
-96:61-98:10: @124[1]: _101 = const ()
-98:10-98:10: @124.Goto: goto -&gt; bb125"><span class="annotation">@122,124⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="97:13-97:26: @124[0]: _62 = const 0_i32
-96:61-98:10: @124[1]: _101 = const ()
-98:10-98:10: @124.Goto: goto -&gt; bb125">            countdown = 0;</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="97:13-97:26: @124[0]: _62 = const 0_i32
-96:61-98:10: @124[1]: _101 = const ()
-98:10-98:10: @124.Goto: goto -&gt; bb125">        }<span class="annotation">⦉@122,124</span></span></span><span><span class="code odd" style="--layer: 1" title="98:10-98:10: @123.Goto: goto -&gt; bb125"><span class="annotation">@123⦊</span>‸<span class="annotation">⦉@123</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="99:9-99:23: @125[2]: _110 = CheckedSub(_62, const 5_i32)
-99:9-99:23: @126[0]: _62 = move (_110.0: i32)"><span class="annotation">@125,126⦊</span>countdown -= 5<span class="annotation">⦉@125,126</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="77:9-77:10: @127[0]: FakeRead(ForLet, _95)"><span class="annotation">@127⦊</span>w<span class="annotation">⦉@127</span></span></span><span class="code" style="--layer: 0"> = if </span><span><span class="code odd" style="--layer: 1" title="77:16-77:25: @106[5]: _97 = _62
+77:16-77:29: @106[6]: _96 = Gt(move _97, const 7_i32)
+77:16-77:29: @106[8]: FakeRead(ForMatchedPlace, _96)"><span class="annotation">@106⦊</span>countdown &gt; 7<span class="annotation">⦉@106</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="78:9-78:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
+78:9-78:23: @110[0]: _62 = move (_98.0: i32)
+77:30-79:6: @110[1]: _95 = const ()"><span class="annotation">@107,109,110⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="78:9-78:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
+78:9-78:23: @110[0]: _62 = move (_98.0: i32)
+77:30-79:6: @110[1]: _95 = const ()">        countdown -= 4;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="78:9-78:23: @109[0]: _98 = CheckedSub(_62, const 4_i32)
+78:9-78:23: @110[0]: _62 = move (_98.0: i32)
+77:30-79:6: @110[1]: _95 = const ()">    }<span class="annotation">⦉@107,109,110</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code odd" style="--layer: 1" title="79:15-79:24: @108[2]: _100 = _62
+79:15-79:28: @108[3]: _99 = Gt(move _100, const 2_i32)
+79:15-79:28: @108[5]: FakeRead(ForMatchedPlace, _99)"><span class="annotation">@108⦊</span>countdown &gt; 2<span class="annotation">⦉@108</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="80:12-80:21: @113[5]: _105 = _62
+80:12-80:25: @113[6]: _104 = Lt(move _105, const 1_i32)"><span class="annotation">@111,113⦊</span>countdown &lt; 1<span class="annotation">⦉@111,113</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code odd" style="--layer: 1" title="80:29-80:38: @120[2]: _107 = _62
+80:29-80:42: @120[3]: _106 = Gt(move _107, const 5_i32)"><span class="annotation">@120⦊</span>countdown &gt; 5<span class="annotation">⦉@120</span></span></span><span class="code" style="--layer: 0"> || </span><span><span class="code even" style="--layer: 1" title="80:46-80:55: @116[2]: _109 = _62
+80:46-80:60: @116[3]: _108 = Ne(move _109, const 9_i32)"><span class="annotation">@116⦊</span>countdown != 9<span class="annotation">⦉@116</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="81:13-81:26: @124[0]: _62 = const 0_i32
+80:61-82:10: @124[1]: _101 = const ()"><span class="annotation">@122,124⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="81:13-81:26: @124[0]: _62 = const 0_i32
+80:61-82:10: @124[1]: _101 = const ()">            countdown = 0;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="81:13-81:26: @124[0]: _62 = const 0_i32
+80:61-82:10: @124[1]: _101 = const ()">        }<span class="annotation">⦉@122,124</span></span></span><span><span class="code even" style="--layer: 1" title="82:10-82:10: @123[0]: _101 = const ()"><span class="annotation">@123⦊</span>‸<span class="annotation">⦉@123</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="83:9-83:23: @125[2]: _110 = CheckedSub(_62, const 5_i32)
+83:9-83:23: @126[0]: _62 = move (_110.0: i32)"><span class="annotation">@125,126⦊</span>countdown -= 5<span class="annotation">⦉@125,126</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="101:9-101:15: @112[0]: _0 = const ()"><span class="annotation">@112⦊</span>return<span class="annotation">⦉@112</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="85:9-85:15: @112[0]: _0 = const ()"><span class="annotation">@112⦊</span>return<span class="annotation">⦉@112</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    };</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="103:2-103:2: @130.Goto: goto -&gt; bb131"><span class="annotation">@130⦊</span>‸<span class="annotation">⦉@130</span></span></span><span><span class="code odd" style="--layer: 1" title="103:2-103:2: @131.Return: return"><span class="annotation">@131⦊</span>‸<span class="annotation">⦉@131</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="87:2-87:2: @131.Return: return"><span class="annotation">@131⦊</span>‸<span class="annotation">⦉@131</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.main.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..59d00600738f0
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.main.-------.InstrumentCoverage.0.html
@@ -0,0 +1,151 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.main.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>dead_code.main - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 26"><span class="line"><span><span class="code even" style="--layer: 1" title="31:19-31:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+31:19-31:35: @1[0]: _3 = &amp;_4
+31:19-31:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+31:19-31:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+31:9-31:16: @2[3]: FakeRead(ForLet, _1)
+33:25-33:26: @3[2]: _5 = const 0_i32
+33:9-33:22: @3[3]: FakeRead(ForLet, _5)
+34:8-34:15: @3[5]: _6 = _1
+34:8-34:15: @3[6]: FakeRead(ForMatchedPlace, _6)"><span class="annotation">@0,1,2,3⦊</span>fn main() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="31:19-31:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+31:19-31:35: @1[0]: _3 = &amp;_4
+31:19-31:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+31:19-31:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+31:9-31:16: @2[3]: FakeRead(ForLet, _1)
+33:25-33:26: @3[2]: _5 = const 0_i32
+33:9-33:22: @3[3]: FakeRead(ForLet, _5)
+34:8-34:15: @3[5]: _6 = _1
+34:8-34:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="31:19-31:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+31:19-31:35: @1[0]: _3 = &amp;_4
+31:19-31:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+31:19-31:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+31:9-31:16: @2[3]: FakeRead(ForLet, _1)
+33:25-33:26: @3[2]: _5 = const 0_i32
+33:9-33:22: @3[3]: FakeRead(ForLet, _5)
+34:8-34:15: @3[5]: _6 = _1
+34:8-34:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="31:19-31:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+31:19-31:35: @1[0]: _3 = &amp;_4
+31:19-31:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+31:19-31:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+31:9-31:16: @2[3]: FakeRead(ForLet, _1)
+33:25-33:26: @3[2]: _5 = const 0_i32
+33:9-33:22: @3[3]: FakeRead(ForLet, _5)
+34:8-34:15: @3[5]: _6 = _1
+34:8-34:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // dependent conditions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="31:19-31:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+31:19-31:35: @1[0]: _3 = &amp;_4
+31:19-31:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+31:19-31:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+31:9-31:16: @2[3]: FakeRead(ForLet, _1)
+33:25-33:26: @3[2]: _5 = const 0_i32
+33:9-33:22: @3[3]: FakeRead(ForLet, _5)
+34:8-34:15: @3[5]: _6 = _1
+34:8-34:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    let is_true = std::env::args().len() == 1;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="31:19-31:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+31:19-31:35: @1[0]: _3 = &amp;_4
+31:19-31:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+31:19-31:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+31:9-31:16: @2[3]: FakeRead(ForLet, _1)
+33:25-33:26: @3[2]: _5 = const 0_i32
+33:9-33:22: @3[3]: FakeRead(ForLet, _5)
+34:8-34:15: @3[5]: _6 = _1
+34:8-34:15: @3[6]: FakeRead(ForMatchedPlace, _6)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="31:19-31:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+31:19-31:35: @1[0]: _3 = &amp;_4
+31:19-31:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+31:19-31:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+31:9-31:16: @2[3]: FakeRead(ForLet, _1)
+33:25-33:26: @3[2]: _5 = const 0_i32
+33:9-33:22: @3[3]: FakeRead(ForLet, _5)
+34:8-34:15: @3[5]: _6 = _1
+34:8-34:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="31:19-31:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+31:19-31:35: @1[0]: _3 = &amp;_4
+31:19-31:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+31:19-31:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+31:9-31:16: @2[3]: FakeRead(ForLet, _1)
+33:25-33:26: @3[2]: _5 = const 0_i32
+33:9-33:22: @3[3]: FakeRead(ForLet, _5)
+34:8-34:15: @3[5]: _6 = _1
+34:8-34:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    if is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="35:9-35:23: @6[0]: _5 = const 10_i32
+34:16-36:6: @6[1]: _0 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="35:9-35:23: @6[0]: _5 = const 10_i32
+34:16-36:6: @6[1]: _0 = const ()">        countdown = 10;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="35:9-35:23: @6[0]: _5 = const 10_i32
+34:16-36:6: @6[1]: _0 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="36:6-36:6: @5[0]: _0 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="37:2-37:2: @7.Return: return"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_fn.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_fn.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..1a535b937887b
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_fn.-------.InstrumentCoverage.0.html
@@ -0,0 +1,151 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_fn.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>dead_code.unused_fn - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 14"><span class="line"><span><span class="code even" style="--layer: 1" title="19:19-19:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+19:19-19:35: @1[0]: _3 = &amp;_4
+19:19-19:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+19:19-19:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+19:9-19:16: @2[3]: FakeRead(ForLet, _1)
+21:25-21:26: @3[2]: _5 = const 0_i32
+21:9-21:22: @3[3]: FakeRead(ForLet, _5)
+22:8-22:15: @3[5]: _6 = _1
+22:8-22:15: @3[6]: FakeRead(ForMatchedPlace, _6)"><span class="annotation">@0,1,2,3⦊</span>fn unused_fn() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="19:19-19:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+19:19-19:35: @1[0]: _3 = &amp;_4
+19:19-19:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+19:19-19:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+19:9-19:16: @2[3]: FakeRead(ForLet, _1)
+21:25-21:26: @3[2]: _5 = const 0_i32
+21:9-21:22: @3[3]: FakeRead(ForLet, _5)
+22:8-22:15: @3[5]: _6 = _1
+22:8-22:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="19:19-19:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+19:19-19:35: @1[0]: _3 = &amp;_4
+19:19-19:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+19:19-19:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+19:9-19:16: @2[3]: FakeRead(ForLet, _1)
+21:25-21:26: @3[2]: _5 = const 0_i32
+21:9-21:22: @3[3]: FakeRead(ForLet, _5)
+22:8-22:15: @3[5]: _6 = _1
+22:8-22:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="19:19-19:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+19:19-19:35: @1[0]: _3 = &amp;_4
+19:19-19:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+19:19-19:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+19:9-19:16: @2[3]: FakeRead(ForLet, _1)
+21:25-21:26: @3[2]: _5 = const 0_i32
+21:9-21:22: @3[3]: FakeRead(ForLet, _5)
+22:8-22:15: @3[5]: _6 = _1
+22:8-22:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // dependent conditions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="19:19-19:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+19:19-19:35: @1[0]: _3 = &amp;_4
+19:19-19:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+19:19-19:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+19:9-19:16: @2[3]: FakeRead(ForLet, _1)
+21:25-21:26: @3[2]: _5 = const 0_i32
+21:9-21:22: @3[3]: FakeRead(ForLet, _5)
+22:8-22:15: @3[5]: _6 = _1
+22:8-22:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    let is_true = std::env::args().len() == 1;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="19:19-19:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+19:19-19:35: @1[0]: _3 = &amp;_4
+19:19-19:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+19:19-19:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+19:9-19:16: @2[3]: FakeRead(ForLet, _1)
+21:25-21:26: @3[2]: _5 = const 0_i32
+21:9-21:22: @3[3]: FakeRead(ForLet, _5)
+22:8-22:15: @3[5]: _6 = _1
+22:8-22:15: @3[6]: FakeRead(ForMatchedPlace, _6)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="19:19-19:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+19:19-19:35: @1[0]: _3 = &amp;_4
+19:19-19:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+19:19-19:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+19:9-19:16: @2[3]: FakeRead(ForLet, _1)
+21:25-21:26: @3[2]: _5 = const 0_i32
+21:9-21:22: @3[3]: FakeRead(ForLet, _5)
+22:8-22:15: @3[5]: _6 = _1
+22:8-22:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="19:19-19:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+19:19-19:35: @1[0]: _3 = &amp;_4
+19:19-19:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+19:19-19:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+19:9-19:16: @2[3]: FakeRead(ForLet, _1)
+21:25-21:26: @3[2]: _5 = const 0_i32
+21:9-21:22: @3[3]: FakeRead(ForLet, _5)
+22:8-22:15: @3[5]: _6 = _1
+22:8-22:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    if is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="23:9-23:23: @6[0]: _5 = const 10_i32
+22:16-24:6: @6[1]: _0 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="23:9-23:23: @6[0]: _5 = const 10_i32
+22:16-24:6: @6[1]: _0 = const ()">        countdown = 10;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="23:9-23:23: @6[0]: _5 = const 10_i32
+22:16-24:6: @6[1]: _0 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="24:6-24:6: @5[0]: _0 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="25:2-25:2: @7.Return: return"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_pub_fn_not_in_library.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_pub_fn_not_in_library.-------.InstrumentCoverage.0.html
new file mode 100644
index 0000000000000..6eff51ad89c73
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_pub_fn_not_in_library.-------.InstrumentCoverage.0.html
@@ -0,0 +1,151 @@
+<!DOCTYPE html>
+<!--
+
+Preview this file as rendered HTML from the github source at:
+https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.dead_code/dead_code.unused_pub_fn_not_in_library.-------.InstrumentCoverage.0.html
+
+For revisions in Pull Requests (PR):
+  * Replace "rust-lang" with the github PR author
+  * Replace "master" with the PR branch name
+
+-->
+<html>
+<head>
+<title>dead_code.unused_pub_fn_not_in_library - Coverage Spans</title>
+<style>
+    .line {
+        counter-increment: line;
+    }
+    .line:before {
+        content: counter(line) ": ";
+        font-family: Menlo, Monaco, monospace;
+        font-style: italic;
+        width: 3.8em;
+        display: inline-block;
+        text-align: right;
+        filter: opacity(50%);
+        -webkit-user-select: none;
+    }
+    .code {
+        color: #dddddd;
+        background-color: #222222;
+        font-family: Menlo, Monaco, monospace;
+        line-height: 1.4em;
+        border-bottom: 2px solid #222222;
+        white-space: pre;
+        display: inline-block;
+    }
+    .odd {
+        background-color: #55bbff;
+        color: #223311;
+    }
+    .even {
+        background-color: #ee7756;
+        color: #551133;
+    }
+    .code {
+        --index: calc(var(--layer) - 1);
+        padding-top: calc(var(--index) * 0.15em);
+        filter:
+            hue-rotate(calc(var(--index) * 25deg))
+            saturate(calc(100% - (var(--index) * 2%)))
+            brightness(calc(100% - (var(--index) * 1.5%)));
+    }
+    .annotation {
+        color: #4444ff;
+        font-family: monospace;
+        font-style: italic;
+        display: none;
+        -webkit-user-select: none;
+    }
+    body:active .annotation {
+        /* requires holding mouse down anywhere on the page */
+        display: inline-block;
+    }
+    span:hover .annotation {
+        /* requires hover over a span ONLY on its first line */
+        display: inline-block;
+    }
+</style>
+</head>
+<body>
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[5]: _6 = _1
+10:8-10:15: @3[6]: FakeRead(ForMatchedPlace, _6)"><span class="annotation">@0,1,2,3⦊</span>pub fn unused_pub_fn_not_in_library() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[5]: _6 = _1
+10:8-10:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[5]: _6 = _1
+10:8-10:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[5]: _6 = _1
+10:8-10:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    // dependent conditions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[5]: _6 = _1
+10:8-10:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    let is_true = std::env::args().len() == 1;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[5]: _6 = _1
+10:8-10:15: @3[6]: FakeRead(ForMatchedPlace, _6)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[5]: _6 = _1
+10:8-10:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[5]: _6 = _1
+10:8-10:15: @3[6]: FakeRead(ForMatchedPlace, _6)">    if is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_i32
+10:16-12:6: @6[1]: _0 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_i32
+10:16-12:6: @6[1]: _0 = const ()">        countdown = 10;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_i32
+10:16-12:6: @6[1]: _0 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="12:6-12:6: @5[0]: _0 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="13:2-13:2: @7.Return: return"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span></span></div>
+</body>
+</html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.main.-------.InstrumentCoverage.0.html
index 8d6f936aadcbc..fa3c4b3c31257 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.main.-------.InstrumentCoverage.0.html
@@ -69,22 +69,42 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 13"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
+<div class="code" style="counter-reset: line 13"><span class="line"><span><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
 15:9-15:21: @0[2]: FakeRead(ForLet, _1)
 17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
-17:9-17:13: @0[5]: FakeRead(ForLet, _2)"><span class="annotation">@0⦊</span>_firecracker = Firework { strength: 1 };</span></span>
+17:9-17:13: @0[5]: FakeRead(ForLet, _2)
+19:8-19:12: @0[8]: _4 = const true
+19:8-19:12: @0[9]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
 15:9-15:21: @0[2]: FakeRead(ForLet, _1)
 17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
-17:9-17:13: @0[5]: FakeRead(ForLet, _2)"></span></span>
+17:9-17:13: @0[5]: FakeRead(ForLet, _2)
+19:8-19:12: @0[8]: _4 = const true
+19:8-19:12: @0[9]: FakeRead(ForMatchedPlace, _4)">    let _firecracker = Firework { strength: 1 };</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
 15:9-15:21: @0[2]: FakeRead(ForLet, _1)
 17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
-17:9-17:13: @0[5]: FakeRead(ForLet, _2)">    let _tnt = Firework { strength: 100 }<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="19:8-19:12: @0[8]: _4 = const true
-19:8-19:12: @0[9]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+17:9-17:13: @0[5]: FakeRead(ForLet, _2)
+19:8-19:12: @0[8]: _4 = const true
+19:8-19:12: @0[9]: FakeRead(ForMatchedPlace, _4)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
+15:9-15:21: @0[2]: FakeRead(ForLet, _1)
+17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
+17:9-17:13: @0[5]: FakeRead(ForLet, _2)
+19:8-19:12: @0[8]: _4 = const true
+19:8-19:12: @0[9]: FakeRead(ForMatchedPlace, _4)">    let _tnt = Firework { strength: 100 };</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
+15:9-15:21: @0[2]: FakeRead(ForLet, _1)
+17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
+17:9-17:13: @0[5]: FakeRead(ForLet, _2)
+19:8-19:12: @0[8]: _4 = const true
+19:8-19:12: @0[9]: FakeRead(ForMatchedPlace, _4)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="15:24-15:48: @0[1]: _1 = Firework { strength: const 1_i32 }
+15:9-15:21: @0[2]: FakeRead(ForLet, _1)
+17:16-17:42: @0[4]: _2 = Firework { strength: const 100_i32 }
+17:9-17:13: @0[5]: FakeRead(ForLet, _2)
+19:8-19:12: @0[8]: _4 = const true
+19:8-19:12: @0[9]: FakeRead(ForMatchedPlace, _4)">    if true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="20:18-20:41: @3[6]: _21 = const main::promoted[1]
 20:18-20:41: @3[7]: _11 = &amp;(*_21)
 20:18-20:41: @3[8]: _10 = &amp;(*_11)
@@ -113,15 +133,24 @@
 20:9-20:43: @4.Call: _7 = _print(move _8) -&gt; [return: bb5, unwind: bb12]
 20:9-20:43: @5[5]: _6 = const ()
 21:16-21:22: @5[7]: _0 = std::result::Result::&lt;(), u8&gt;::Err(const 1_u8)">        return Err(1)<span class="annotation">⦉@1,3,4,5,9,10</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let _ = </span><span><span class="code even" style="--layer: 1" title="24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="22:6-22:6: @2[0]: _3 = const ()
+24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
+26:8-26:10: @6[2]: _19 = ()
+26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)"><span class="annotation">@2,6,7,8⦊</span></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="22:6-22:6: @2[0]: _3 = const ()
+24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
+26:8-26:10: @6[2]: _19 = ()
+26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="22:6-22:6: @2[0]: _3 = const ()
+24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
 26:8-26:10: @6[2]: _19 = ()
-26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)"><span class="annotation">@2,6,7,8⦊</span>Firework { strength: 1000 };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
+26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)">    let _ = Firework { strength: 1000 };</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="22:6-22:6: @2[0]: _3 = const ()
+24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
 26:8-26:10: @6[2]: _19 = ()
 26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
+<span class="line"><span class="code even" style="--layer: 1" title="22:6-22:6: @2[0]: _3 = const ()
+24:13-24:40: @2[4]: _18 = Firework { strength: const 1000_i32 }
 26:8-26:10: @6[2]: _19 = ()
 26:5-26:11: @6[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _19)">    Ok(())<span class="annotation">⦉@2,6,7,8</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="27:2-27:2: @11.Return: return"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span></span></div>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.{impl#0}-drop.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.{impl#0}-drop.-------.InstrumentCoverage.0.html
index 60a24df9ba6b0..b5dedeec8ac7e 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.{impl#0}-drop.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.drop_trait/drop_trait.{impl#0}-drop.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 8"><span class="line">    <span class="code" style="--layer: 0">fn drop(&amp;mut self) </span><span><span class="code even" style="--layer: 1" title="10:18-10:36: @0[6]: _19 = const &lt;Firework as Drop&gt;::drop::promoted[0]
+<div class="code" style="counter-reset: line 8"><span class="line">    <span><span class="code even" style="--layer: 1" title="10:18-10:36: @0[6]: _19 = const &lt;Firework as Drop&gt;::drop::promoted[0]
 10:18-10:36: @0[7]: _7 = &amp;(*_19)
 10:18-10:36: @0[8]: _6 = &amp;(*_7)
 10:18-10:36: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
@@ -88,7 +88,7 @@
 10:9-10:53: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
 10:9-10:53: @3[6]: _2 = const ()
 9:24-11:6: @3[8]: _0 = const ()
-11:6-11:6: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>{</span></span>
+11:6-11:6: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>fn drop(&amp;mut self) {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:18-10:36: @0[6]: _19 = const &lt;Firework as Drop&gt;::drop::promoted[0]
 10:18-10:36: @0[7]: _7 = &amp;(*_19)
 10:18-10:36: @0[8]: _6 = &amp;(*_7)
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.main.-------.InstrumentCoverage.0.html
index 3f90fd1e8215a..52c5d4f47b1d3 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.main.-------.InstrumentCoverage.0.html
@@ -69,8 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 21"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
+<div class="code" style="counter-reset: line 21"><span class="line"><span><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
 23:9-23:24: @0[2]: FakeRead(ForLet, _1)
 24:5-24:16: @0[5]: _3 = &amp;mut _1
 24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
@@ -79,7 +78,9 @@
 27:5-27:8: @1[7]: _6 = &amp;mut _4
 27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
 28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]"><span class="annotation">@0,1,2,3⦊</span>mut firecracker = Firework { strength: 1 };</span></span>
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@0,1,2,3⦊</span>fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
 23:9-23:24: @0[2]: FakeRead(ForLet, _1)
 24:5-24:16: @0[5]: _3 = &amp;mut _1
@@ -89,7 +90,9 @@
 27:5-27:8: @1[7]: _6 = &amp;mut _4
 27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
 28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]">    firecracker.set_strength(2);</span></span>
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)">    let mut firecracker = Firework { strength: 1 };</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
 23:9-23:24: @0[2]: FakeRead(ForLet, _1)
 24:5-24:16: @0[5]: _3 = &amp;mut _1
@@ -99,7 +102,9 @@
 27:5-27:8: @1[7]: _6 = &amp;mut _4
 27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
 28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]"></span></span>
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)">    firecracker.set_strength(2);</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
 23:9-23:24: @0[2]: FakeRead(ForLet, _1)
 24:5-24:16: @0[5]: _3 = &amp;mut _1
@@ -109,7 +114,9 @@
 27:5-27:8: @1[7]: _6 = &amp;mut _4
 27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
 28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]">    let mut tnt = Firework { strength: 100.1 };</span></span>
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)"></span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
 23:9-23:24: @0[2]: FakeRead(ForLet, _1)
 24:5-24:16: @0[5]: _3 = &amp;mut _1
@@ -119,7 +126,9 @@
 27:5-27:8: @1[7]: _6 = &amp;mut _4
 27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
 28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]">    tnt.set_strength(200.1);</span></span>
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)">    let mut tnt = Firework { strength: 100.1 };</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
 23:9-23:24: @0[2]: FakeRead(ForLet, _1)
 24:5-24:16: @0[5]: _3 = &amp;mut _1
@@ -129,10 +138,45 @@
 27:5-27:8: @1[7]: _6 = &amp;mut _4
 27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
 28:5-28:8: @2[4]: _8 = &amp;mut _4
-28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]">    tnt.set_strength(300.3)<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="30:8-30:12: @3[4]: _10 = const true
-30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@0,1,2,3⦊</span>true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)">    tnt.set_strength(200.1);</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
+23:9-23:24: @0[2]: FakeRead(ForLet, _1)
+24:5-24:16: @0[5]: _3 = &amp;mut _1
+24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
+26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
+26:9-26:16: @1[4]: FakeRead(ForLet, _4)
+27:5-27:8: @1[7]: _6 = &amp;mut _4
+27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
+28:5-28:8: @2[4]: _8 = &amp;mut _4
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)">    tnt.set_strength(300.3);</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
+23:9-23:24: @0[2]: FakeRead(ForLet, _1)
+24:5-24:16: @0[5]: _3 = &amp;mut _1
+24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
+26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
+26:9-26:16: @1[4]: FakeRead(ForLet, _4)
+27:5-27:8: @1[7]: _6 = &amp;mut _4
+27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
+28:5-28:8: @2[4]: _8 = &amp;mut _4
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="23:27-23:51: @0[1]: _1 = Firework::&lt;i32&gt; { strength: const 1_i32 }
+23:9-23:24: @0[2]: FakeRead(ForLet, _1)
+24:5-24:16: @0[5]: _3 = &amp;mut _1
+24:5-24:32: @0.Call: _2 = Firework::&lt;i32&gt;::set_strength(move _3, const 2_i32) -&gt; [return: bb1, unwind: bb16]
+26:19-26:47: @1[3]: _4 = Firework::&lt;f64&gt; { strength: const 100.09999999999999f64 }
+26:9-26:16: @1[4]: FakeRead(ForLet, _4)
+27:5-27:8: @1[7]: _6 = &amp;mut _4
+27:5-27:28: @1.Call: _5 = Firework::&lt;f64&gt;::set_strength(move _6, const 200.09999999999999f64) -&gt; [return: bb2, unwind: bb15]
+28:5-28:8: @2[4]: _8 = &amp;mut _4
+28:5-28:28: @2.Call: _7 = Firework::&lt;f64&gt;::set_strength(move _8, const 300.30000000000001f64) -&gt; [return: bb3, unwind: bb15]
+30:8-30:12: @3[4]: _10 = const true
+30:8-30:12: @3[5]: FakeRead(ForMatchedPlace, _10)">    if true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="31:18-31:41: @6[6]: _27 = const main::promoted[1]
 31:18-31:41: @6[7]: _17 = &amp;(*_27)
 31:18-31:41: @6[8]: _16 = &amp;(*_17)
@@ -161,17 +205,42 @@
 31:9-31:43: @7.Call: _13 = _print(move _14) -&gt; [return: bb8, unwind: bb15]
 31:9-31:43: @8[5]: _12 = const ()
 32:16-32:22: @8[7]: _0 = std::result::Result::&lt;(), u8&gt;::Err(const 1_u8)">        return Err(1)<span class="annotation">⦉@4,6,7,8,12,13</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    let _ = </span><span><span class="code even" style="--layer: 1" title="35:13-35:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
-37:8-37:10: @9[2]: _25 = ()
-37:5-37:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)"><span class="annotation">@5,9,10,11⦊</span>Firework { strength: 1000 };</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="35:13-35:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
-37:8-37:10: @9[2]: _25 = ()
-37:5-37:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)"></span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="35:13-35:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
-37:8-37:10: @9[2]: _25 = ()
-37:5-37:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)">    Ok(())<span class="annotation">⦉@5,9,10,11</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="38:2-38:2: @14.Return: return"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)"><span class="annotation">@5,9,10,11⦊</span> // The remaining lines below have no coverage because `if true` (with the constant literal</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)">      // `true`) is guaranteed to execute the `then` block, which is also guaranteed to `return`.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)">      // Thankfully, in the normal case, conditions are not guaranteed ahead of time, and as shown</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)">      // in other tests, the lines below would have coverage (which would show they had `0`</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)">      // executions, assuming the condition still evaluated to `true`).</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)">    let _ = Firework { strength: 1000 };</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="33:6-33:6: @5[0]: _9 = const ()
+39:13-39:40: @5[4]: _24 = Firework::&lt;i32&gt; { strength: const 1000_i32 }
+41:8-41:10: @9[2]: _25 = ()
+41:5-41:11: @9[3]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _25)">    Ok(())<span class="annotation">⦉@5,9,10,11</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="42:2-42:2: @14.Return: return"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.{impl#0}-set_strength.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.{impl#0}-set_strength.-------.InstrumentCoverage.0.html
index b10da561da91d..329641d47bdbc 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.{impl#0}-set_strength.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.{impl#0}-set_strength.-------.InstrumentCoverage.0.html
@@ -69,10 +69,10 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 9"><span class="line">    <span class="code" style="--layer: 0">fn set_strength(&amp;mut self, new_strength: T) </span><span><span class="code even" style="--layer: 1" title="11:25-11:37: @0[1]: _3 = _2
+<div class="code" style="counter-reset: line 9"><span class="line">    <span><span class="code even" style="--layer: 1" title="11:25-11:37: @0[1]: _3 = _2
 11:9-11:37: @0[2]: ((*_1).0: T) = move _3
 10:49-12:6: @0[4]: _0 = const ()
-12:6-12:6: @0.Return: return"><span class="annotation">@0⦊</span>{</span></span>
+12:6-12:6: @0.Return: return"><span class="annotation">@0⦊</span>fn set_strength(&amp;mut self, new_strength: T) {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="11:25-11:37: @0[1]: _3 = _2
 11:9-11:37: @0[2]: ((*_1).0: T) = move _3
 10:49-12:6: @0[4]: _0 = const ()
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.{impl#1}-drop.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.{impl#1}-drop.-------.InstrumentCoverage.0.html
index 0515e8d7b8cb4..c4e99bd679d0e 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.{impl#1}-drop.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.generics/generics.{impl#1}-drop.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 16"><span class="line">    <span class="code" style="--layer: 0">fn drop(&amp;mut self) </span><span><span class="code even" style="--layer: 1" title="18:18-18:36: @0[6]: _19 = const &lt;Firework&lt;T&gt; as Drop&gt;::drop::promoted[0]
+<div class="code" style="counter-reset: line 16"><span class="line">    <span><span class="code even" style="--layer: 1" title="18:18-18:36: @0[6]: _19 = const &lt;Firework&lt;T&gt; as Drop&gt;::drop::promoted[0]
 18:18-18:36: @0[7]: _7 = &amp;(*_19)
 18:18-18:36: @0[8]: _6 = &amp;(*_7)
 18:18-18:36: @0[9]: _5 = move _6 as &amp;[&amp;str] (Pointer(Unsize))
@@ -88,7 +88,7 @@
 18:9-18:53: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
 18:9-18:53: @3[6]: _2 = const ()
 17:24-19:6: @3[8]: _0 = const ()
-19:6-19:6: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>{</span></span>
+19:6-19:6: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>fn drop(&amp;mut self) {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="18:18-18:36: @0[6]: _19 = const &lt;Firework&lt;T&gt; as Drop&gt;::drop::promoted[0]
 18:18-18:36: @0[7]: _7 = &amp;(*_19)
 18:18-18:36: @0[8]: _6 = &amp;(*_7)
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if/if.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if/if.main.-------.InstrumentCoverage.0.html
index e926079a42897..8eb6c1dcb877a 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if/if.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if/if.main.-------.InstrumentCoverage.0.html
@@ -69,110 +69,189 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)"><span class="annotation">@0,1,2,3⦊</span>fn main() {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    =</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">        std::env::args().len()</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    ==</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    // dependent conditions.</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">        1</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    let</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    ;</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    is_true</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    let</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    =</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">        mut</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">        std::env::args().len()</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    countdown</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    ==</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">    =</span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">        1</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
 10:9-10:25: @1[0]: _3 = &amp;_4
 10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
 10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
 8:5-8:12: @2[3]: FakeRead(ForLet, _1)
 18:9-18:10: @3[2]: _5 = const 0_i32
-15:9-16:14: @3[3]: FakeRead(ForLet, _5)">        0<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="21:9-21:16: @3[5]: _6 = _1
-21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    ;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+10:9-10:25: @1[0]: _3 = &amp;_4
+10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
+8:5-8:12: @2[3]: FakeRead(ForLet, _1)
+18:9-18:10: @3[2]: _5 = const 0_i32
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    let</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+10:9-10:25: @1[0]: _3 = &amp;_4
+10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
+8:5-8:12: @2[3]: FakeRead(ForLet, _1)
+18:9-18:10: @3[2]: _5 = const 0_i32
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">        mut</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+10:9-10:25: @1[0]: _3 = &amp;_4
+10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
+8:5-8:12: @2[3]: FakeRead(ForLet, _1)
+18:9-18:10: @3[2]: _5 = const 0_i32
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    countdown</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+10:9-10:25: @1[0]: _3 = &amp;_4
+10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
+8:5-8:12: @2[3]: FakeRead(ForLet, _1)
+18:9-18:10: @3[2]: _5 = const 0_i32
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    =</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+10:9-10:25: @1[0]: _3 = &amp;_4
+10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
+8:5-8:12: @2[3]: FakeRead(ForLet, _1)
+18:9-18:10: @3[2]: _5 = const 0_i32
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">        0</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+10:9-10:25: @1[0]: _3 = &amp;_4
+10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
+8:5-8:12: @2[3]: FakeRead(ForLet, _1)
+18:9-18:10: @3[2]: _5 = const 0_i32
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    ;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+10:9-10:25: @1[0]: _3 = &amp;_4
+10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
+8:5-8:12: @2[3]: FakeRead(ForLet, _1)
+18:9-18:10: @3[2]: _5 = const 0_i32
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">    if</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:9-10:25: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb9]
+10:9-10:25: @1[0]: _3 = &amp;_4
+10:9-10:31: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb8]
+10:9-12:10: @2[1]: _1 = Eq(move _2, const 1_usize)
+8:5-8:12: @2[3]: FakeRead(ForLet, _1)
+18:9-18:10: @3[2]: _5 = const 0_i32
+15:9-16:14: @3[3]: FakeRead(ForLet, _5)
+21:9-21:16: @3[5]: _6 = _1
+21:9-21:16: @3[6]: FakeRead(ForMatchedPlace, _6)">        is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
+22:5-27:6: @6[1]: _0 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">        countdown</span></span>
+22:5-27:6: @6[1]: _0 = const ()">        countdown</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">        =</span></span>
+22:5-27:6: @6[1]: _0 = const ()">        =</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">            10</span></span>
+22:5-27:6: @6[1]: _0 = const ()">            10</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">        ;</span></span>
+22:5-27:6: @6[1]: _0 = const ()">        ;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="23:9-25:15: @6[0]: _5 = const 10_i32
-22:5-27:6: @6[1]: _0 = const ()
-27:6-27:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="27:6-27:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+22:5-27:6: @6[1]: _0 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="27:6-27:6: @5[0]: _0 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="28:2-28:2: @7.Return: return"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if_else/if_else.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if_else/if_else.main.-------.InstrumentCoverage.0.html
index 586014afebaf7..5b2cce4f648fc 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if_else/if_else.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.if_else/if_else.main.-------.InstrumentCoverage.0.html
@@ -69,11 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
@@ -81,7 +77,43 @@
 9:25-9:26: @3[2]: _5 = const 0_i32
 9:9-9:22: @3[3]: FakeRead(ForLet, _5)
 11:9-11:16: @3[6]: _7 = _1
-11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
+11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>fn main() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+11:9-11:16: @3[6]: _7 = _1
+11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+11:9-11:16: @3[6]: _7 = _1
+11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+11:9-11:16: @3[6]: _7 = _1
+11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    // dependent conditions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+11:9-11:16: @3[6]: _7 = _1
+11:9-11:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    let is_true = std::env::args().len() == 1;</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb13]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb12]
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-InTrait-default_trait_func.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-InTrait-default_trait_func.-------.InstrumentCoverage.0.html
index 387f2ba4e4139..29548fa112421 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-InTrait-default_trait_func.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-InTrait-default_trait_func.-------.InstrumentCoverage.0.html
@@ -69,11 +69,11 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 32"><span class="line">        <span class="code" style="--layer: 0">fn default_trait_func(&amp;mut self) </span><span><span class="code even" style="--layer: 1" title="34:13-34:30: @0.Call: _2 = in_func(const IN_CONST) -&gt; [return: bb1, unwind: bb3]
+<div class="code" style="counter-reset: line 32"><span class="line">        <span><span class="code even" style="--layer: 1" title="34:13-34:30: @0.Call: _2 = in_func(const IN_CONST) -&gt; [return: bb1, unwind: bb3]
 35:13-35:17: @1[3]: _4 = &amp;mut (*_1)
 35:13-35:38: @1.Call: _3 = &lt;Self as InTrait&gt;::trait_func(move _4, const IN_CONST) -&gt; [return: bb2, unwind: bb3]
 33:42-36:10: @2[2]: _0 = const ()
-36:10-36:10: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{</span></span>
+36:10-36:10: @2.Return: return"><span class="annotation">@0,1,2⦊</span>fn default_trait_func(&amp;mut self) {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="34:13-34:30: @0.Call: _2 = in_func(const IN_CONST) -&gt; [return: bb1, unwind: bb3]
 35:13-35:17: @1[3]: _4 = &amp;mut (*_1)
 35:13-35:38: @1.Call: _3 = &lt;Self as InTrait&gt;::trait_func(move _4, const IN_CONST) -&gt; [return: bb2, unwind: bb3]
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-in_func.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-in_func.-------.InstrumentCoverage.0.html
index cec099a0ef529..8b5257b02bbd6 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-in_func.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-in_func.-------.InstrumentCoverage.0.html
@@ -69,8 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 17"><span class="line">    <span class="code" style="--layer: 0">fn in_func(a: u32) {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        let </span><span><span class="code even" style="--layer: 1" title="19:17-19:18: @0[1]: _2 = const 1_u32
+<div class="code" style="counter-reset: line 17"><span class="line">    <span><span class="code even" style="--layer: 1" title="19:17-19:18: @0[1]: _2 = const 1_u32
 19:13-19:14: @0[2]: FakeRead(ForLet, _2)
 20:17-20:18: @0[5]: _4 = _1
 20:21-20:22: @0[7]: _5 = _2
@@ -95,7 +94,33 @@
 21:9-21:30: @2.Call: _8 = Arguments::new_v1(move _9, move _13) -&gt; [return: bb3, unwind: bb5]
 21:9-21:30: @3.Call: _7 = _print(move _8) -&gt; [return: bb4, unwind: bb5]
 21:9-21:30: @4[6]: _0 = const ()
-22:6-22:6: @4.Return: return"><span class="annotation">@0,1,2,3,4⦊</span>b = 1;</span></span>
+22:6-22:6: @4.Return: return"><span class="annotation">@0,1,2,3,4⦊</span>fn in_func(a: u32) {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="19:17-19:18: @0[1]: _2 = const 1_u32
+19:13-19:14: @0[2]: FakeRead(ForLet, _2)
+20:17-20:18: @0[5]: _4 = _1
+20:21-20:22: @0[7]: _5 = _2
+20:17-20:22: @0[8]: _6 = CheckedAdd(_4, _5)
+20:17-20:22: @1[0]: _3 = move (_6.0: u32)
+20:13-20:14: @1[3]: FakeRead(ForLet, _3)
+21:18-21:26: @1[9]: _23 = const in_func::promoted[0]
+21:18-21:26: @1[10]: _11 = &amp;(*_23)
+21:18-21:26: @1[11]: _10 = &amp;(*_11)
+21:18-21:26: @1[12]: _9 = move _10 as &amp;[&amp;str] (Pointer(Unsize))
+21:28-21:29: @1[20]: _18 = &amp;_3
+21:9-21:30: @1[21]: _17 = (move _18,)
+21:9-21:30: @1[23]: FakeRead(ForMatchedPlace, _17)
+21:9-21:30: @1[25]: _19 = (_17.0: &amp;u32)
+21:9-21:30: @1[28]: _21 = &amp;(*_19)
+21:9-21:30: @1[30]: _22 = &lt;u32 as std::fmt::Display&gt;::fmt as for&lt;&#39;r, &#39;s, &#39;t0&gt; fn(&amp;&#39;r u32, &amp;&#39;s mut std::fmt::Formatter&lt;&#39;t0&gt;) -&gt; std::result::Result&lt;(), std::fmt::Error&gt; (Pointer(ReifyFnPointer))
+21:9-21:30: @1.Call: _20 = ArgumentV1::new::&lt;u32&gt;(move _21, move _22) -&gt; [return: bb2, unwind: bb5]
+21:9-21:30: @2[2]: _16 = [move _20]
+21:9-21:30: @2[5]: _15 = &amp;_16
+21:9-21:30: @2[6]: _14 = &amp;(*_15)
+21:9-21:30: @2[7]: _13 = move _14 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
+21:9-21:30: @2.Call: _8 = Arguments::new_v1(move _9, move _13) -&gt; [return: bb3, unwind: bb5]
+21:9-21:30: @3.Call: _7 = _print(move _8) -&gt; [return: bb4, unwind: bb5]
+21:9-21:30: @4[6]: _0 = const ()
+22:6-22:6: @4.Return: return">        let b = 1;</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="19:17-19:18: @0[1]: _2 = const 1_u32
 19:13-19:14: @0[2]: FakeRead(ForLet, _2)
 20:17-20:18: @0[5]: _4 = _1
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-{impl#0}-trait_func.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-{impl#0}-trait_func.-------.InstrumentCoverage.0.html
index eaecb183ca110..ee1e0339049e1 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-{impl#0}-trait_func.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main-{impl#0}-trait_func.-------.InstrumentCoverage.0.html
@@ -69,13 +69,13 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 39"><span class="line">        <span class="code" style="--layer: 0">fn trait_func(&amp;mut self, incr: u32) </span><span><span class="code even" style="--layer: 1" title="41:37-41:41: @0[1]: _3 = _2
+<div class="code" style="counter-reset: line 39"><span class="line">        <span><span class="code even" style="--layer: 1" title="41:37-41:41: @0[1]: _3 = _2
 41:13-41:41: @0[2]: _4 = CheckedAdd(((*_1).0: u32), _3)
 41:13-41:41: @1[0]: ((*_1).0: u32) = move (_4.0: u32)
 42:21-42:41: @1[4]: _6 = ((*_1).0: u32)
 42:13-42:42: @1.Call: _5 = in_func(move _6) -&gt; [return: bb2, unwind: bb3]
 40:45-43:10: @2[2]: _0 = const ()
-43:10-43:10: @2.Return: return"><span class="annotation">@0,1,2⦊</span>{</span></span>
+43:10-43:10: @2.Return: return"><span class="annotation">@0,1,2⦊</span>fn trait_func(&amp;mut self, incr: u32) {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="41:37-41:41: @0[1]: _3 = _2
 41:13-41:41: @0[2]: _4 = CheckedAdd(((*_1).0: u32), _3)
 41:13-41:41: @1[0]: ((*_1).0: u32) = move (_4.0: u32)
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main.-------.InstrumentCoverage.0.html
index 3e54d6566b481..693b15f15b9ca 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.inner_items/inner_items.main.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1,2,3⦊</span>fn main() <span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">{</span></span>
 <span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
 <span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
 <span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
@@ -79,31 +79,41 @@
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 0_u32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 0_u32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"></span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)"></span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 0_u32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)">    let mut countdown = 0<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="10:8-10:15: @3[6]: _7 = _1
-10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_u32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)">    let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_u32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)">    if is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_u32
+10:16-12:6: @6[1]: _6 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_u32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7">        countdown = 10;</span></span>
+10:16-12:6: @6[1]: _6 = const ()">        countdown = 10;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:23: @6[0]: _5 = const 10_u32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="12:6-12:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+10:16-12:6: @6[1]: _6 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="12:6-12:6: @5[0]: _6 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    mod in_mod {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        const IN_MOD_CONST: u32 = 1000;</span></span>
@@ -142,16 +152,13 @@
 <span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="48:8-48:15: @7[4]: _9 = _1
 48:8-48:15: @7[5]: FakeRead(ForMatchedPlace, _9)"><span class="annotation">@7⦊</span>is_true<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="49:17-49:26: @10[2]: _11 = _5
 49:9-49:27: @10.Call: _10 = in_func(move _11) -&gt; [return: bb11, unwind: bb15]
-48:16-50:6: @11[2]: _8 = const ()
-50:6-50:6: @11.Goto: goto -&gt; bb12"><span class="annotation">@8,10,11⦊</span>{</span></span>
+48:16-50:6: @11[2]: _8 = const ()"><span class="annotation">@8,10,11⦊</span>{</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="49:17-49:26: @10[2]: _11 = _5
 49:9-49:27: @10.Call: _10 = in_func(move _11) -&gt; [return: bb11, unwind: bb15]
-48:16-50:6: @11[2]: _8 = const ()
-50:6-50:6: @11.Goto: goto -&gt; bb12">        in_func(countdown);</span></span>
+48:16-50:6: @11[2]: _8 = const ()">        in_func(countdown);</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="49:17-49:26: @10[2]: _11 = _5
 49:9-49:27: @10.Call: _10 = in_func(move _11) -&gt; [return: bb11, unwind: bb15]
-48:16-50:6: @11[2]: _8 = const ()
-50:6-50:6: @11.Goto: goto -&gt; bb12">    }<span class="annotation">⦉@8,10,11</span></span></span><span><span class="code odd" style="--layer: 1" title="50:6-50:6: @9.Goto: goto -&gt; bb12"><span class="annotation">@9⦊</span>‸<span class="annotation">⦉@9</span></span></span><span class="code" style="--layer: 0"></span></span>
+48:16-50:6: @11[2]: _8 = const ()">    }<span class="annotation">⦉@8,10,11</span></span></span><span><span class="code odd" style="--layer: 1" title="50:6-50:6: @9[0]: _8 = const ()"><span class="annotation">@9⦊</span>‸<span class="annotation">⦉@9</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="52:19-54:6: @12[3]: _12 = InStruct { in_struct_field: const 101_u32 }
 52:9-52:16: @12[4]: FakeRead(ForLet, _12)
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.lazy_boolean/lazy_boolean.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.lazy_boolean/lazy_boolean.main.-------.InstrumentCoverage.0.html
index dd21c23acf6b3..f30f0ed9a8489 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.lazy_boolean/lazy_boolean.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.lazy_boolean/lazy_boolean.main.-------.InstrumentCoverage.0.html
@@ -69,11 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
@@ -81,7 +77,9 @@
 9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
 9:10-9:15: @3[4]: _5 = (_8.0: i32)
 9:17-9:22: @3[6]: _6 = (_8.1: i32)
-9:24-9:29: @3[8]: _7 = (_8.2: i32)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
+9:24-9:29: @3[8]: _7 = (_8.2: i32)
+10:8-10:15: @3[12]: _10 = _1
+10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@0,1,2,3⦊</span>fn main() {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
@@ -90,7 +88,9 @@
 9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
 9:10-9:15: @3[4]: _5 = (_8.0: i32)
 9:17-9:22: @3[6]: _6 = (_8.1: i32)
-9:24-9:29: @3[8]: _7 = (_8.2: i32)"></span></span>
+9:24-9:29: @3[8]: _7 = (_8.2: i32)
+10:8-10:15: @3[12]: _10 = _1
+10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
@@ -99,33 +99,83 @@
 9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
 9:10-9:15: @3[4]: _5 = (_8.0: i32)
 9:17-9:22: @3[6]: _6 = (_8.1: i32)
-9:24-9:29: @3[8]: _7 = (_8.2: i32)">    let (mut a, mut b, mut c) = (0, 0, 0)<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="10:8-10:15: @3[12]: _10 = _1
-10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
+9:24-9:29: @3[8]: _7 = (_8.2: i32)
+10:8-10:15: @3[12]: _10 = _1
+10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
+9:10-9:15: @3[4]: _5 = (_8.0: i32)
+9:17-9:22: @3[6]: _6 = (_8.1: i32)
+9:24-9:29: @3[8]: _7 = (_8.2: i32)
+10:8-10:15: @3[12]: _10 = _1
+10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)">    // dependent conditions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
+9:10-9:15: @3[4]: _5 = (_8.0: i32)
+9:17-9:22: @3[6]: _6 = (_8.1: i32)
+9:24-9:29: @3[8]: _7 = (_8.2: i32)
+10:8-10:15: @3[12]: _10 = _1
+10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)">    let is_true = std::env::args().len() == 1;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
+9:10-9:15: @3[4]: _5 = (_8.0: i32)
+9:17-9:22: @3[6]: _6 = (_8.1: i32)
+9:24-9:29: @3[8]: _7 = (_8.2: i32)
+10:8-10:15: @3[12]: _10 = _1
+10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
+9:10-9:15: @3[4]: _5 = (_8.0: i32)
+9:17-9:22: @3[6]: _6 = (_8.1: i32)
+9:24-9:29: @3[8]: _7 = (_8.2: i32)
+10:8-10:15: @3[12]: _10 = _1
+10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)">    let (mut a, mut b, mut c) = (0, 0, 0);</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb41]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb40]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:33-9:42: @3[2]: _8 = (const 0_i32, const 0_i32, const 0_i32)
+9:10-9:15: @3[4]: _5 = (_8.0: i32)
+9:17-9:22: @3[6]: _6 = (_8.1: i32)
+9:24-9:29: @3[8]: _7 = (_8.2: i32)
+10:8-10:15: @3[12]: _10 = _1
+10:8-10:15: @3[13]: FakeRead(ForMatchedPlace, _10)">    if is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
 12:9-12:15: @6[1]: _6 = const 10_i32
 13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
+10:16-14:6: @6[3]: _9 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
 12:9-12:15: @6[1]: _6 = const 10_i32
 13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7">        a = 1;</span></span>
+10:16-14:6: @6[3]: _9 = const ()">        a = 1;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
 12:9-12:15: @6[1]: _6 = const 10_i32
 13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7">        b = 10;</span></span>
+10:16-14:6: @6[3]: _9 = const ()">        b = 10;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
 12:9-12:15: @6[1]: _6 = const 10_i32
 13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7">        c = 100;</span></span>
+10:16-14:6: @6[3]: _9 = const ()">        c = 100;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:14: @6[0]: _5 = const 1_i32
 12:9-12:15: @6[1]: _6 = const 10_i32
 13:9-13:16: @6[2]: _7 = const 100_i32
-10:16-14:6: @6[3]: _9 = const ()
-14:6-14:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="14:6-14:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+10:16-14:6: @6[3]: _9 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="14:6-14:6: @5[0]: _9 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    let</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="16:9-16:17: @11[2]: FakeRead(ForLet, _11)"><span class="annotation">@11⦊</span>somebool<span class="annotation">⦉@11</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        =</span></span>
@@ -135,7 +185,7 @@
 <span class="line"><span class="code" style="--layer: 0">        ||</span></span>
 <span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="20:13-20:14: @10[2]: _16 = _6
 20:17-20:18: @10[4]: _17 = _7
-20:13-20:18: @10[5]: _15 = Lt(move _16, move _17)"><span class="annotation">@10⦊</span>b &lt; c<span class="annotation">⦉@10</span></span></span><span><span class="code even" style="--layer: 1" title="20:18-20:18: @8.Goto: goto -&gt; bb11"><span class="annotation">@8⦊</span>‸<span class="annotation">⦉@8</span></span></span><span><span class="code odd" style="--layer: 1" title="20:18-20:18: @9.Goto: goto -&gt; bb11"><span class="annotation">@9⦊</span>‸<span class="annotation">⦉@9</span></span></span><span class="code" style="--layer: 0"></span></span>
+20:13-20:18: @10[5]: _15 = Lt(move _16, move _17)"><span class="annotation">@10⦊</span>b &lt; c<span class="annotation">⦉@10</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    ;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    let</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="23:9-23:17: @15[2]: FakeRead(ForLet, _18)"><span class="annotation">@15⦊</span>somebool<span class="annotation">⦉@15</span></span></span><span class="code" style="--layer: 0"></span></span>
@@ -146,18 +196,18 @@
 <span class="line"><span class="code" style="--layer: 0">        ||</span></span>
 <span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="27:13-27:14: @14[2]: _23 = _6
 27:17-27:18: @14[4]: _24 = _7
-27:13-27:18: @14[5]: _22 = Lt(move _23, move _24)"><span class="annotation">@14⦊</span>b &lt; c<span class="annotation">⦉@14</span></span></span><span><span class="code odd" style="--layer: 1" title="27:18-27:18: @12.Goto: goto -&gt; bb15"><span class="annotation">@12⦊</span>‸<span class="annotation">⦉@12</span></span></span><span><span class="code even" style="--layer: 1" title="27:18-27:18: @13.Goto: goto -&gt; bb15"><span class="annotation">@13⦊</span>‸<span class="annotation">⦉@13</span></span></span><span class="code" style="--layer: 0"></span></span>
+27:13-27:18: @14[5]: _22 = Lt(move _23, move _24)"><span class="annotation">@14⦊</span>b &lt; c<span class="annotation">⦉@14</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    ;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="29:9-29:17: @19[2]: FakeRead(ForLet, _25)"><span class="annotation">@19⦊</span>somebool<span class="annotation">⦉@19</span></span></span><span class="code" style="--layer: 0"> = </span><span><span class="code even" style="--layer: 1" title="29:20-29:21: @15[6]: _27 = _5
 29:24-29:25: @15[8]: _28 = _6
 29:20-29:25: @15[9]: _26 = Lt(move _27, move _28)"><span class="annotation">@15⦊</span>a &lt; b<span class="annotation">⦉@15</span></span></span><span class="code" style="--layer: 0"> &amp;&amp; </span><span><span class="code odd" style="--layer: 1" title="29:29-29:30: @18[2]: _30 = _6
 29:33-29:34: @18[4]: _31 = _7
-29:29-29:34: @18[5]: _29 = Lt(move _30, move _31)"><span class="annotation">@18⦊</span>b &lt; c<span class="annotation">⦉@18</span></span></span><span><span class="code even" style="--layer: 1" title="29:34-29:34: @16.Goto: goto -&gt; bb19"><span class="annotation">@16⦊</span>‸<span class="annotation">⦉@16</span></span></span><span><span class="code odd" style="--layer: 1" title="29:34-29:34: @17.Goto: goto -&gt; bb19"><span class="annotation">@17⦊</span>‸<span class="annotation">⦉@17</span></span></span><span class="code" style="--layer: 0">;</span></span>
+29:29-29:34: @18[5]: _29 = Lt(move _30, move _31)"><span class="annotation">@18⦊</span>b &lt; c<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="30:9-30:17: @23[2]: FakeRead(ForLet, _32)"><span class="annotation">@23⦊</span>somebool<span class="annotation">⦉@23</span></span></span><span class="code" style="--layer: 0"> = </span><span><span class="code odd" style="--layer: 1" title="30:20-30:21: @19[6]: _34 = _6
 30:24-30:25: @19[8]: _35 = _5
 30:20-30:25: @19[9]: _33 = Lt(move _34, move _35)"><span class="annotation">@19⦊</span>b &lt; a<span class="annotation">⦉@19</span></span></span><span class="code" style="--layer: 0"> &amp;&amp; </span><span><span class="code even" style="--layer: 1" title="30:29-30:30: @22[2]: _37 = _6
 30:33-30:34: @22[4]: _38 = _7
-30:29-30:34: @22[5]: _36 = Lt(move _37, move _38)"><span class="annotation">@22⦊</span>b &lt; c<span class="annotation">⦉@22</span></span></span><span><span class="code odd" style="--layer: 1" title="30:34-30:34: @20.Goto: goto -&gt; bb23"><span class="annotation">@20⦊</span>‸<span class="annotation">⦉@20</span></span></span><span><span class="code even" style="--layer: 1" title="30:34-30:34: @21.Goto: goto -&gt; bb23"><span class="annotation">@21⦊</span>‸<span class="annotation">⦉@21</span></span></span><span class="code" style="--layer: 0">;</span></span>
+30:29-30:34: @22[5]: _36 = Lt(move _37, move _38)"><span class="annotation">@22⦊</span>b &lt; c<span class="annotation">⦉@22</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    if</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="34:9-34:16: @23[6]: _41 = _1
@@ -167,17 +217,13 @@
 33:9-34:16: @23[7]: _40 = Not(move _41)
 33:9-34:16: @23[9]: FakeRead(ForMatchedPlace, _40)">        is_true<span class="annotation">⦉@23</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="36:9-36:14: @26[0]: _5 = const 2_i32
-35:5-38:6: @26[1]: _39 = const ()
-38:6-38:6: @26.Goto: goto -&gt; bb27"><span class="annotation">@24,26⦊</span>{</span></span>
+35:5-38:6: @26[1]: _39 = const ()"><span class="annotation">@24,26⦊</span>{</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="36:9-36:14: @26[0]: _5 = const 2_i32
-35:5-38:6: @26[1]: _39 = const ()
-38:6-38:6: @26.Goto: goto -&gt; bb27">        a = 2</span></span>
+35:5-38:6: @26[1]: _39 = const ()">        a = 2</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="36:9-36:14: @26[0]: _5 = const 2_i32
-35:5-38:6: @26[1]: _39 = const ()
-38:6-38:6: @26.Goto: goto -&gt; bb27">        ;</span></span>
+35:5-38:6: @26[1]: _39 = const ()">        ;</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="36:9-36:14: @26[0]: _5 = const 2_i32
-35:5-38:6: @26[1]: _39 = const ()
-38:6-38:6: @26.Goto: goto -&gt; bb27">    }<span class="annotation">⦉@24,26</span></span></span><span><span class="code odd" style="--layer: 1" title="38:6-38:6: @25.Goto: goto -&gt; bb27"><span class="annotation">@25⦊</span>‸<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0"></span></span>
+35:5-38:6: @26[1]: _39 = const ()">    }<span class="annotation">⦉@24,26</span></span></span><span><span class="code odd" style="--layer: 1" title="38:6-38:6: @25[0]: _39 = const ()"><span class="annotation">@25⦊</span>‸<span class="annotation">⦉@25</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    if</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="41:9-41:16: @27[4]: _43 = _1
@@ -203,14 +249,11 @@
 <span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code odd" style="--layer: 1" title="52:9-52:16: @31[5]: _46 = _1
 52:8-52:16: @31[6]: _45 = Not(move _46)
 52:8-52:16: @31[8]: FakeRead(ForMatchedPlace, _45)"><span class="annotation">@31⦊</span>!is_true<span class="annotation">⦉@31</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="53:9-53:14: @34[0]: _5 = const 2_i32
-52:17-54:6: @34[1]: _44 = const ()
-54:6-54:6: @34.Goto: goto -&gt; bb35"><span class="annotation">@32,34⦊</span>{</span></span>
+52:17-54:6: @34[1]: _44 = const ()"><span class="annotation">@32,34⦊</span>{</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="53:9-53:14: @34[0]: _5 = const 2_i32
-52:17-54:6: @34[1]: _44 = const ()
-54:6-54:6: @34.Goto: goto -&gt; bb35">        a = 2;</span></span>
+52:17-54:6: @34[1]: _44 = const ()">        a = 2;</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="53:9-53:14: @34[0]: _5 = const 2_i32
-52:17-54:6: @34[1]: _44 = const ()
-54:6-54:6: @34.Goto: goto -&gt; bb35">    }<span class="annotation">⦉@32,34</span></span></span><span><span class="code odd" style="--layer: 1" title="54:6-54:6: @33.Goto: goto -&gt; bb35"><span class="annotation">@33⦊</span>‸<span class="annotation">⦉@33</span></span></span><span class="code" style="--layer: 0"></span></span>
+52:17-54:6: @34[1]: _44 = const ()">    }<span class="annotation">⦉@32,34</span></span></span><span><span class="code odd" style="--layer: 1" title="54:6-54:6: @33[0]: _44 = const ()"><span class="annotation">@33⦊</span>‸<span class="annotation">⦉@33</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="56:8-56:15: @35[3]: _47 = _1
 56:8-56:15: @35[4]: FakeRead(ForMatchedPlace, _47)"><span class="annotation">@35⦊</span>is_true<span class="annotation">⦉@35</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="57:9-57:15: @38[0]: _6 = const 30_i32
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loop_break_value/loop_break_value.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loop_break_value/loop_break_value.main.-------.InstrumentCoverage.0.html
index eff27bf3557a9..076d036c2aff7 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loop_break_value/loop_break_value.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loop_break_value/loop_break_value.main.-------.InstrumentCoverage.0.html
@@ -69,11 +69,11 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
 9:13-9:15: @1[0]: _1 = const 10_i32
 4:9-4:15: @1[1]: FakeRead(ForLet, _1)
 3:11-13:2: @1[2]: _0 = const ()
-13:2-13:2: @1.Return: return"><span class="annotation">@0,1⦊</span>{</span></span>
+13:2-13:2: @1.Return: return"><span class="annotation">@0,1⦊</span>fn main() {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="6:13-11:10: @0.FalseUnwind: falseUnwind -&gt; [real: bb1, cleanup: bb2]
 9:13-9:15: @1[0]: _1 = const 10_i32
 4:9-4:15: @1[1]: FakeRead(ForLet, _1)
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.main.-------.InstrumentCoverage.0.html
index 73b3e20946c04..54b1ea45cba9d 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.main.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 21"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="23:22-23:31: @0[1]: _1 = DebugTest
+<div class="code" style="counter-reset: line 21"><span class="line"><span><span class="code even" style="--layer: 1" title="23:22-23:31: @0[1]: _1 = DebugTest
 23:9-23:19: @0[2]: FakeRead(ForLet, _1)
 24:14-24:20: @0[9]: _19 = const main::promoted[0]
 24:14-24:20: @0[10]: _7 = &amp;(*_19)
@@ -90,7 +90,7 @@
 24:5-24:34: @2.Call: _3 = _print(move _4) -&gt; [return: bb3, unwind: bb4]
 24:5-24:34: @3[6]: _2 = const ()
 22:11-25:2: @3[8]: _0 = const ()
-25:2-25:2: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>{</span></span>
+25:2-25:2: @3.Return: return"><span class="annotation">@0,1,2,3⦊</span>fn main() {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="23:22-23:31: @0[1]: _1 = DebugTest
 23:9-23:19: @0[2]: FakeRead(ForLet, _1)
 24:14-24:20: @0[9]: _19 = const main::promoted[0]
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.{impl#0}-fmt.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.{impl#0}-fmt.-------.InstrumentCoverage.0.html
index a98ed9e8ce182..312d2ee7e8f0e 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.{impl#0}-fmt.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.loops_branches/loops_branches.{impl#0}-fmt.-------.InstrumentCoverage.0.html
@@ -69,18 +69,17 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 8"><span class="line">    <span class="code" style="--layer: 0">fn fmt(&amp;self, f: &amp;mut std::fmt::Formatter) -&gt; std::fmt::Result {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        if </span><span><span class="code even" style="--layer: 1" title="10:12-10:16: @0[2]: _4 = const true
-10:12-10:16: @0[3]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<div class="code" style="counter-reset: line 8"><span class="line">    <span><span class="code even" style="--layer: 1" title="10:12-10:16: @0[2]: _4 = const true
+10:12-10:16: @0[3]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@0⦊</span>fn fmt(&amp;self, f: &amp;mut std::fmt::Formatter) -&gt; std::fmt::Result {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="10:12-10:16: @0[2]: _4 = const true
+10:12-10:16: @0[3]: FakeRead(ForMatchedPlace, _4)">        if true<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">            if </span><span><span class="code odd" style="--layer: 1" title="11:16-11:21: @3[2]: _6 = const false
 11:16-11:21: @3[3]: FakeRead(ForMatchedPlace, _6)"><span class="annotation">@1,3⦊</span>false<span class="annotation">⦉@1,3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">                while </span><span><span class="code even" style="--layer: 1" title="12:23-12:27: @7[1]: _8 = const true
-12:23-12:27: @7[2]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@6,7⦊</span>true<span class="annotation">⦉@6,7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="12:28-13:18: @10[0]: _7 = const ()
-13:18-13:18: @10.Goto: goto -&gt; bb6"><span class="annotation">@8,10⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="12:28-13:18: @10[0]: _7 = const ()
-13:18-13:18: @10.Goto: goto -&gt; bb6">                }<span class="annotation">⦉@8,10</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="14:14-14:14: @9.Goto: goto -&gt; bb11"><span class="annotation">@9⦊</span>‸<span class="annotation">⦉@9</span></span></span><span><span class="code odd" style="--layer: 1" title="14:14-14:14: @5.Goto: goto -&gt; bb11"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="15:20-15:21: @11[6]: _13 = &amp;mut (*_2)
+12:23-12:27: @7[2]: FakeRead(ForMatchedPlace, _8)"><span class="annotation">@6,7⦊</span>true<span class="annotation">⦉@6,7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="12:28-13:18: @10[0]: _7 = const ()"><span class="annotation">@8,10⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="12:28-13:18: @10[0]: _7 = const ()">                }<span class="annotation">⦉@8,10</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code even" style="--layer: 1" title="14:14-14:14: @5[0]: _5 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="15:20-15:21: @11[6]: _13 = &amp;mut (*_2)
 15:23-15:30: @11[11]: _32 = const &lt;DebugTest as Debug&gt;::fmt::promoted[1]
 15:23-15:30: @11[12]: _17 = &amp;(*_32)
 15:23-15:30: @11[13]: _16 = &amp;(*_17)
@@ -92,11 +91,11 @@
 15:13-15:31: @11[24]: _20 = &amp;(*_21)
 15:13-15:31: @11[25]: _19 = move _20 as &amp;[std::fmt::ArgumentV1] (Pointer(Unsize))
 15:13-15:31: @11.Call: _14 = Arguments::new_v1(move _15, move _19) -&gt; [return: bb12, unwind: bb23]
-15:13-15:31: @12.Call: _12 = Formatter::write_fmt(move _13, move _14) -&gt; [return: bb13, unwind: bb23]"><span class="annotation">@11,12,13,14⦊</span>write!(f, "error")<span class="annotation">⦉@11,12,13,14</span></span></span><span><span class="code odd" style="--layer: 1" title="15:31-15:32: @18[1]: _25 = ((_11 as Err).0: std::fmt::Error)
+15:13-15:31: @12.Call: _12 = Formatter::write_fmt(move _13, move _14) -&gt; [return: bb13, unwind: bb23]"><span class="annotation">@11,12,13,14⦊</span>write!(f, "error")<span class="annotation">⦉@11,12,13,14</span></span></span><span><span class="code even" style="--layer: 1" title="15:31-15:32: @18[1]: _25 = ((_11 as Err).0: std::fmt::Error)
 15:31-15:32: @18[4]: _28 = _25
 15:31-15:32: @18.Call: _27 = &lt;std::fmt::Error as From&lt;std::fmt::Error&gt;&gt;::from(move _28) -&gt; [return: bb19, unwind: bb23]"><span class="annotation">@16,18,19,20⦊</span>?<span class="annotation">⦉@16,18,19,20</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        } else </span><span><span class="code even" style="--layer: 1" title="16:16-17:10: @2[0]: _3 = const ()"><span class="annotation">@2⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="16:16-17:10: @2[0]: _3 = const ()">        }<span class="annotation">⦉@2</span></span></span><span><span class="code odd" style="--layer: 1" title="17:10-17:10: @15.Goto: goto -&gt; bb21"><span class="annotation">@15⦊</span>‸<span class="annotation">⦉@15</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        } else </span><span><span class="code odd" style="--layer: 1" title="16:16-17:10: @2[0]: _3 = const ()"><span class="annotation">@2⦊</span>{</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="16:16-17:10: @2[0]: _3 = const ()">        }<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="18:12-18:14: @21[3]: _30 = ()
 18:9-18:15: @21[4]: _0 = std::result::Result::&lt;(), std::fmt::Error&gt;::Ok(move _30)"><span class="annotation">@21⦊</span>Ok(())<span class="annotation">⦉@21</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="19:6-19:6: @22.Return: return"><span class="annotation">@22⦊</span>‸<span class="annotation">⦉@22</span></span></span></span></div>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.nested_loops/nested_loops.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.nested_loops/nested_loops.main.-------.InstrumentCoverage.0.html
index 0f3ea3ce6a89d..cb60276aa1228 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.nested_loops/nested_loops.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.nested_loops/nested_loops.main.-------.InstrumentCoverage.0.html
@@ -69,14 +69,20 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 0"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="2:19-2:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb35]
+<div class="code" style="counter-reset: line 0"><span class="line"><span><span class="code even" style="--layer: 1" title="2:19-2:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb35]
 2:19-2:35: @1[0]: _3 = &amp;_4
 2:19-2:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb34]
 2:19-2:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 2:9-2:16: @2[3]: FakeRead(ForLet, _1)
 3:25-3:27: @3[2]: _5 = const 10_i32
-3:9-3:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
+3:9-3:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>fn main() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="2:19-2:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb35]
+2:19-2:35: @1[0]: _3 = &amp;_4
+2:19-2:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb34]
+2:19-2:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+2:9-2:16: @2[3]: FakeRead(ForLet, _1)
+3:25-3:27: @3[2]: _5 = const 10_i32
+3:9-3:22: @3[3]: FakeRead(ForLet, _5)">    let is_true = std::env::args().len() == 1;</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="2:19-2:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb35]
 2:19-2:35: @1[0]: _3 = &amp;_4
 2:19-2:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb34]
@@ -107,18 +113,38 @@
 9:16-9:22: @16[16]: _26 = Lt(move _27, const 30_i32)
 9:16-9:22: @16[18]: FakeRead(ForMatchedPlace, _26)"><span class="annotation">@14,16⦊</span>a &lt; 30<span class="annotation">⦉@14,16</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code even" style="--layer: 1" title="10:17-10:22: @19[0]: _11 = const ()"><span class="annotation">@17,19⦊</span>break<span class="annotation">⦉@17,19</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            }</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="12:13-12:19: @18[3]: _29 = CheckedSub(_9, const 5_i32)
+<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code odd" style="--layer: 1" title="11:14-11:14: @18[0]: _25 = const ()
+12:13-12:19: @18[3]: _29 = CheckedSub(_9, const 5_i32)
 12:13-12:19: @20[0]: _9 = move (_29.0: i32)
 13:13-13:19: @20[1]: _30 = CheckedSub(_10, const 5_i32)
-13:13-13:19: @21[0]: _10 = move (_30.0: i32)"><span class="annotation">@18,20,21⦊</span>a -= 5;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="12:13-12:19: @18[3]: _29 = CheckedSub(_9, const 5_i32)
+13:13-13:19: @21[0]: _10 = move (_30.0: i32)
+14:16-14:17: @21[3]: _32 = _10
+14:16-14:22: @21[4]: _31 = Lt(move _32, const 90_i32)
+14:16-14:22: @21[6]: FakeRead(ForMatchedPlace, _31)"><span class="annotation">@18,20,21⦊</span></span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="11:14-11:14: @18[0]: _25 = const ()
+12:13-12:19: @18[3]: _29 = CheckedSub(_9, const 5_i32)
 12:13-12:19: @20[0]: _9 = move (_29.0: i32)
 13:13-13:19: @20[1]: _30 = CheckedSub(_10, const 5_i32)
-13:13-13:19: @21[0]: _10 = move (_30.0: i32)">            b -= 5<span class="annotation">⦉@18,20,21</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            if </span><span><span class="code odd" style="--layer: 1" title="14:16-14:17: @21[3]: _32 = _10
+13:13-13:19: @21[0]: _10 = move (_30.0: i32)
+14:16-14:17: @21[3]: _32 = _10
 14:16-14:22: @21[4]: _31 = Lt(move _32, const 90_i32)
-14:16-14:22: @21[6]: FakeRead(ForMatchedPlace, _31)"><span class="annotation">@18,20,21⦊</span>b &lt; 90<span class="annotation">⦉@18,20,21</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+14:16-14:22: @21[6]: FakeRead(ForMatchedPlace, _31)">            a -= 5;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="11:14-11:14: @18[0]: _25 = const ()
+12:13-12:19: @18[3]: _29 = CheckedSub(_9, const 5_i32)
+12:13-12:19: @20[0]: _9 = move (_29.0: i32)
+13:13-13:19: @20[1]: _30 = CheckedSub(_10, const 5_i32)
+13:13-13:19: @21[0]: _10 = move (_30.0: i32)
+14:16-14:17: @21[3]: _32 = _10
+14:16-14:22: @21[4]: _31 = Lt(move _32, const 90_i32)
+14:16-14:22: @21[6]: FakeRead(ForMatchedPlace, _31)">            b -= 5;</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="11:14-11:14: @18[0]: _25 = const ()
+12:13-12:19: @18[3]: _29 = CheckedSub(_9, const 5_i32)
+12:13-12:19: @20[0]: _9 = move (_29.0: i32)
+13:13-13:19: @20[1]: _30 = CheckedSub(_10, const 5_i32)
+13:13-13:19: @21[0]: _10 = move (_30.0: i32)
+14:16-14:17: @21[3]: _32 = _10
+14:16-14:22: @21[4]: _31 = Lt(move _32, const 90_i32)
+14:16-14:22: @21[6]: FakeRead(ForMatchedPlace, _31)">            if b &lt; 90<span class="annotation">⦉@18,20,21</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">                </span><span><span class="code even" style="--layer: 1" title="15:17-15:24: @24[0]: _33 = CheckedSub(_9, const 10_i32)
 15:17-15:24: @25[0]: _9 = move (_33.0: i32)
 16:20-16:27: @25[2]: _34 = _1
@@ -130,24 +156,18 @@
 <span class="line"><span class="code" style="--layer: 0">                    </span><span><span class="code odd" style="--layer: 1" title="17:21-17:33: @28[0]: _0 = const ()"><span class="annotation">@26,28⦊</span>break 'outer<span class="annotation">⦉@26,28</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">                } else </span><span><span class="code even" style="--layer: 1" title="19:21-19:27: @27[0]: _36 = CheckedSub(_9, const 2_i32)
 19:21-19:27: @29[0]: _9 = move (_36.0: i32)
-18:24-20:18: @29[1]: _24 = const ()
-21:14-21:14: @29.Goto: goto -&gt; bb30"><span class="annotation">@27,29⦊</span>{</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="19:21-19:27: @27[0]: _36 = CheckedSub(_9, const 2_i32)
-19:21-19:27: @29[0]: _9 = move (_36.0: i32)
-18:24-20:18: @29[1]: _24 = const ()
-21:14-21:14: @29.Goto: goto -&gt; bb30">                    a -= 2;</span></span>
+18:24-20:18: @29[1]: _24 = const ()"><span class="annotation">@27,29⦊</span>{</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="19:21-19:27: @27[0]: _36 = CheckedSub(_9, const 2_i32)
 19:21-19:27: @29[0]: _9 = move (_36.0: i32)
-18:24-20:18: @29[1]: _24 = const ()
-21:14-21:14: @29.Goto: goto -&gt; bb30">                }</span></span>
+18:24-20:18: @29[1]: _24 = const ()">                    a -= 2;</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="19:21-19:27: @27[0]: _36 = CheckedSub(_9, const 2_i32)
 19:21-19:27: @29[0]: _9 = move (_36.0: i32)
-18:24-20:18: @29[1]: _24 = const ()
-21:14-21:14: @29.Goto: goto -&gt; bb30">            }<span class="annotation">⦉@27,29</span></span></span><span><span class="code odd" style="--layer: 1" title="21:14-21:14: @23.Goto: goto -&gt; bb30"><span class="annotation">@23⦊</span>‸<span class="annotation">⦉@23</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span><span><span class="code even" style="--layer: 1" title="22:10-22:10: @30.Goto: goto -&gt; bb10"><span class="annotation">@30⦊</span>‸<span class="annotation">⦉@30</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="23:9-23:23: @31[4]: _37 = CheckedSub(_5, const 1_i32)
+18:24-20:18: @29[1]: _24 = const ()">                }<span class="annotation">⦉@27,29</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">            }</span><span><span class="code odd" style="--layer: 1" title="21:14-21:14: @23[0]: _24 = const ()"><span class="annotation">@23⦊</span>‸<span class="annotation">⦉@23</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        }</span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="23:9-23:23: @31[4]: _37 = CheckedSub(_5, const 1_i32)
 23:9-23:23: @32[0]: _5 = move (_37.0: i32)"><span class="annotation">@31,32⦊</span>countdown -= 1<span class="annotation">⦉@31,32</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="24:6-24:6: @7.Goto: goto -&gt; bb33"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span></span>
 <span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="25:2-25:2: @33.Return: return"><span class="annotation">@33⦊</span>‸<span class="annotation">⦉@33</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.main.-------.InstrumentCoverage.0.html
index 4f237d6561d33..6739634f65b30 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.main.-------.InstrumentCoverage.0.html
@@ -69,9 +69,10 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 14"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="16:25-16:27: @0[1]: _1 = const 10_i32
-16:9-16:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 14"><span class="line"><span><span class="code even" style="--layer: 1" title="16:25-16:27: @0[1]: _1 = const 10_i32
+16:9-16:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="16:25-16:27: @0[1]: _1 = const 10_i32
+16:9-16:22: @0[2]: FakeRead(ForLet, _1)">    let mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="17:11-17:20: @2[2]: _5 = _1
 17:11-17:24: @2[3]: _4 = Gt(move _5, const 0_i32)
 17:11-17:24: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown &gt; 0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> {</span></span>
@@ -245,14 +246,14 @@
 23:13-23:44: @17.Call: _32 = Arguments::new_v1(move _33, move _37) -&gt; [return: bb18, unwind: bb23]
 23:13-23:44: @18.Call: _31 = _print(move _32) -&gt; [return: bb19, unwind: bb23]
 23:13-23:44: @19[6]: _30 = const ()
-21:33-24:10: @19[8]: _6 = const ()">        }<span class="annotation">⦉@13,15,16,17,18,19</span></span></span><span><span class="code even" style="--layer: 1" title="24:10-24:10: @14.Goto: goto -&gt; bb20"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span><span><span class="code odd" style="--layer: 1" title="24:10-24:10: @20.Goto: goto -&gt; bb21"><span class="annotation">@20⦊</span>‸<span class="annotation">⦉@20</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="25:9-25:23: @21[2]: _47 = CheckedSub(_1, const 1_i32)
+21:33-24:10: @19[8]: _6 = const ()">        }<span class="annotation">⦉@13,15,16,17,18,19</span></span></span><span><span class="code even" style="--layer: 1" title="24:10-24:10: @14[0]: _6 = const ()"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="25:9-25:23: @21[2]: _47 = CheckedSub(_1, const 1_i32)
 25:9-25:23: @22[0]: _1 = move (_47.0: i32)"><span class="annotation">@21,22⦊</span>countdown -= 1<span class="annotation">⦉@21,22</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="27:8-27:10: @4[4]: _49 = ()
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="27:8-27:10: @4[4]: _49 = ()
 27:5-27:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _49)
 28:2-28:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="27:8-27:10: @4[4]: _49 = ()
+<span class="line"><span class="code even" style="--layer: 1" title="27:8-27:10: @4[4]: _49 = ()
 27:5-27:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _49)
 28:2-28:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
 </body>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.might_overflow.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.might_overflow.-------.InstrumentCoverage.0.html
index b1dbc40ee206d..c72ad42635620 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.might_overflow.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.overflow/overflow.might_overflow.-------.InstrumentCoverage.0.html
@@ -69,10 +69,12 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn might_overflow(to_add: u32) -&gt; u32 {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="5:8-5:14: @0[3]: _4 = _1
+<div class="code" style="counter-reset: line 3"><span class="line"><span><span class="code even" style="--layer: 1" title="5:8-5:14: @0[3]: _4 = _1
 5:8-5:18: @0[4]: _3 = Gt(move _4, const 5_u32)
-5:8-5:18: @0[6]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0⦊</span>to_add &gt; 5<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="6:18-6:47: @3[6]: _61 = const might_overflow::promoted[4]
+5:8-5:18: @0[6]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@0⦊</span>fn might_overflow(to_add: u32) -&gt; u32 {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="5:8-5:14: @0[3]: _4 = _1
+5:8-5:18: @0[4]: _3 = Gt(move _4, const 5_u32)
+5:8-5:18: @0[6]: FakeRead(ForMatchedPlace, _3)">    if to_add &gt; 5<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="6:18-6:47: @3[6]: _61 = const might_overflow::promoted[4]
 6:18-6:47: @3[7]: _10 = &amp;(*_61)
 6:18-6:47: @3[8]: _9 = &amp;(*_10)
 6:18-6:47: @3[9]: _8 = move _9 as &amp;[&amp;str] (Pointer(Unsize))
@@ -85,8 +87,7 @@
 6:9-6:49: @3.Call: _7 = Arguments::new_v1(move _8, move _12) -&gt; [return: bb4, unwind: bb15]
 6:9-6:49: @4.Call: _6 = _print(move _7) -&gt; [return: bb5, unwind: bb15]
 6:9-6:49: @5[5]: _5 = const ()
-5:19-7:6: @5[7]: _2 = const ()
-7:6-7:6: @5.Goto: goto -&gt; bb6"><span class="annotation">@1,3,4,5⦊</span>{</span></span>
+5:19-7:6: @5[7]: _2 = const ()"><span class="annotation">@1,3,4,5⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="6:18-6:47: @3[6]: _61 = const might_overflow::promoted[4]
 6:18-6:47: @3[7]: _10 = &amp;(*_61)
 6:18-6:47: @3[8]: _9 = &amp;(*_10)
@@ -100,8 +101,7 @@
 6:9-6:49: @3.Call: _7 = Arguments::new_v1(move _8, move _12) -&gt; [return: bb4, unwind: bb15]
 6:9-6:49: @4.Call: _6 = _print(move _7) -&gt; [return: bb5, unwind: bb15]
 6:9-6:49: @5[5]: _5 = const ()
-5:19-7:6: @5[7]: _2 = const ()
-7:6-7:6: @5.Goto: goto -&gt; bb6">        println!("this will probably overflow");</span></span>
+5:19-7:6: @5[7]: _2 = const ()">        println!("this will probably overflow");</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="6:18-6:47: @3[6]: _61 = const might_overflow::promoted[4]
 6:18-6:47: @3[7]: _10 = &amp;(*_61)
 6:18-6:47: @3[8]: _9 = &amp;(*_10)
@@ -115,8 +115,7 @@
 6:9-6:49: @3.Call: _7 = Arguments::new_v1(move _8, move _12) -&gt; [return: bb4, unwind: bb15]
 6:9-6:49: @4.Call: _6 = _print(move _7) -&gt; [return: bb5, unwind: bb15]
 6:9-6:49: @5[5]: _5 = const ()
-5:19-7:6: @5[7]: _2 = const ()
-7:6-7:6: @5.Goto: goto -&gt; bb6">    }<span class="annotation">⦉@1,3,4,5</span></span></span><span><span class="code even" style="--layer: 1" title="7:6-7:6: @2.Goto: goto -&gt; bb6"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
+5:19-7:6: @5[7]: _2 = const ()">    }<span class="annotation">⦉@1,3,4,5</span></span></span><span><span class="code even" style="--layer: 1" title="7:6-7:6: @2[0]: _2 = const ()"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code odd" style="--layer: 1" title="8:18-8:30: @6[3]: _18 = CheckedSub(const core::num::&lt;impl u32&gt;::MAX, const 5_u32)
 8:18-8:30: @7[0]: _17 = move (_18.0: u32)
 8:9-8:15: @7[1]: FakeRead(ForLet, _17)
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.main.-------.InstrumentCoverage.0.html
index ebacd80c37dea..bd6aac4103eb6 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.main.-------.InstrumentCoverage.0.html
@@ -69,9 +69,10 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 12"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="14:25-14:27: @0[1]: _1 = const 10_i32
-14:9-14:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 12"><span class="line"><span><span class="code even" style="--layer: 1" title="14:25-14:27: @0[1]: _1 = const 10_i32
+14:9-14:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>fn main() -&gt; Result&lt;(), u8&gt; {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="14:25-14:27: @0[1]: _1 = const 10_i32
+14:9-14:22: @0[2]: FakeRead(ForLet, _1)">    let mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="15:11-15:20: @2[2]: _5 = _1
 15:11-15:24: @2[3]: _4 = Gt(move _5, const 0_i32)
 15:11-15:24: @2[5]: FakeRead(ForMatchedPlace, _4)"><span class="annotation">@1,2⦊</span>countdown &gt; 0<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> {</span></span>
@@ -89,14 +90,14 @@
 <span class="line"><span class="code odd" style="--layer: 1" title="19:13-19:31: @12.Call: _12 = might_panic(const false) -&gt; [return: bb13, unwind: bb17]
 18:33-20:10: @13[1]: _6 = const ()">            might_panic(false);</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="19:13-19:31: @12.Call: _12 = might_panic(const false) -&gt; [return: bb13, unwind: bb17]
-18:33-20:10: @13[1]: _6 = const ()">        }<span class="annotation">⦉@10,12,13</span></span></span><span><span class="code even" style="--layer: 1" title="20:10-20:10: @11.Goto: goto -&gt; bb14"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span><span><span class="code odd" style="--layer: 1" title="20:10-20:10: @14.Goto: goto -&gt; bb15"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="21:9-21:23: @15[2]: _13 = CheckedSub(_1, const 1_i32)
+18:33-20:10: @13[1]: _6 = const ()">        }<span class="annotation">⦉@10,12,13</span></span></span><span><span class="code even" style="--layer: 1" title="20:10-20:10: @11[0]: _6 = const ()"><span class="annotation">@11⦊</span>‸<span class="annotation">⦉@11</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="21:9-21:23: @15[2]: _13 = CheckedSub(_1, const 1_i32)
 21:9-21:23: @16[0]: _1 = move (_13.0: i32)"><span class="annotation">@15,16⦊</span>countdown -= 1<span class="annotation">⦉@15,16</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="23:8-23:10: @4[4]: _15 = ()
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="23:8-23:10: @4[4]: _15 = ()
 23:5-23:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)
 24:2-24:2: @4.Return: return"><span class="annotation">@4⦊</span>Ok(())</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="23:8-23:10: @4[4]: _15 = ()
+<span class="line"><span class="code even" style="--layer: 1" title="23:8-23:10: @4[4]: _15 = ()
 23:5-23:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)
 24:2-24:2: @4.Return: return">}<span class="annotation">⦉@4</span></span></span></span></div>
 </body>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.might_panic.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.might_panic.-------.InstrumentCoverage.0.html
index d6002e70af277..290b7b8509908 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.might_panic.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.panic_unwind/panic_unwind.might_panic.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn might_panic(should_panic: bool) {</span></span>
+<div class="code" style="counter-reset: line 3"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0⦊</span>fn might_panic(should_panic: bool) <span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">{</span></span>
 <span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="5:8-5:20: @0[1]: _2 = _1
 5:8-5:20: @0[2]: FakeRead(ForMatchedPlace, _2)"><span class="annotation">@0⦊</span>should_panic<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="6:18-6:32: @3[6]: _33 = const might_panic::promoted[3]
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.main.-------.InstrumentCoverage.0.html
index 0c6d81a18b14a..6d9d63deccf17 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.main.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 20"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
+<div class="code" style="counter-reset: line 20"><span class="line"><span><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
 22:9-22:22: @1[0]: FakeRead(ForLet, _1)
 23:25-23:46: @1.Call: _2 = Version::new(const 3_usize, const 3_usize, const 0_usize) -&gt; [return: bb2, unwind: bb9]
 23:9-23:22: @2[0]: FakeRead(ForLet, _2)
@@ -105,7 +105,7 @@
 25:5-25:95: @7.Call: _4 = _print(move _5) -&gt; [return: bb8, unwind: bb9]
 25:5-25:95: @8[7]: _3 = const ()
 21:11-26:2: @8[9]: _0 = const ()
-26:2-26:2: @8.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8⦊</span>{</span></span>
+26:2-26:2: @8.Return: return"><span class="annotation">@0,1,2,3,4,5,6,7,8⦊</span>fn main() {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="22:25-22:46: @0.Call: _1 = Version::new(const 3_usize, const 2_usize, const 1_usize) -&gt; [return: bb1, unwind: bb9]
 22:9-22:22: @1[0]: FakeRead(ForLet, _1)
 23:25-23:46: @1.Call: _2 = Version::new(const 3_usize, const 3_usize, const 0_usize) -&gt; [return: bb2, unwind: bb9]
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#0}-new.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#0}-new.-------.InstrumentCoverage.0.html
index a888cb14d1d44..820ccf74d1b9e 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#0}-new.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#0}-new.-------.InstrumentCoverage.0.html
@@ -69,12 +69,16 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 11"><span class="line">    <span class="code" style="--layer: 0">pub fn new(major: usize, minor: usize, patch: usize) -&gt; Self {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
+<div class="code" style="counter-reset: line 11"><span class="line">    <span><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
 15:13-15:18: @0[3]: _5 = _2
 16:13-16:18: @0[5]: _6 = _3
 13:9-17:10: @0[6]: _0 = Version { major: move _4, minor: move _5, patch: move _6 }
-18:6-18:6: @0.Return: return"><span class="annotation">@0⦊</span>Self {</span></span>
+18:6-18:6: @0.Return: return"><span class="annotation">@0⦊</span>pub fn new(major: usize, minor: usize, patch: usize) -&gt; Self {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
+15:13-15:18: @0[3]: _5 = _2
+16:13-16:18: @0[5]: _6 = _3
+13:9-17:10: @0[6]: _0 = Version { major: move _4, minor: move _5, patch: move _6 }
+18:6-18:6: @0.Return: return">        Self {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="14:13-14:18: @0[1]: _4 = _1
 15:13-15:18: @0[3]: _5 = _2
 16:13-16:18: @0[5]: _6 = _3
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#1}-cmp.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#1}-cmp.-------.InstrumentCoverage.0.html
index fa81a7f8afcd4..ee4c10afd8b89 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#1}-cmp.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#1}-cmp.-------.InstrumentCoverage.0.html
@@ -69,8 +69,6 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line">                                                  <span><span class="code even" style="--layer: 1" title="4:51-4:54: @14.Goto: goto -&gt; bb15"><span class="annotation">@14⦊</span></span></span><span class="code even" style="--layer: 2" title="4:51-4:54: @12[0]: _0 = Equal
-4:51-4:54: @12.Goto: goto -&gt; bb13"><span class="annotation">@11,12⦊</span></span><span class="code even" style="--layer: 3" title="4:51-4:54: @13.Goto: goto -&gt; bb14"><span class="annotation">@13⦊</span>Ord<span class="annotation">⦉@13</span></span><span class="code even" style="--layer: 2" title="4:51-4:54: @12[0]: _0 = Equal
-4:51-4:54: @12.Goto: goto -&gt; bb13"><span class="annotation">⦉@11,12</span></span><span><span class="code even" style="--layer: 1" title="4:51-4:54: @14.Goto: goto -&gt; bb15"><span class="annotation">⦉@14</span></span></span><span><span class="code odd" style="--layer: 1" title="4:54-4:54: @15.Return: return"><span class="annotation">@15⦊</span>‸<span class="annotation">⦉@15</span></span></span></span></div>
+<div class="code" style="counter-reset: line 3"><span class="line">                                                  <span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">Ord</span><span><span class="code odd" style="--layer: 1" title="4:54-4:54: @15.Return: return"><span class="annotation">@15⦊</span>‸<span class="annotation">⦉@15</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
index 52e6b52627693..47f9ab2bd5e7d 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 6"><span class="line">    <span class="code" style="--layer: 0">minor: usize,</span></span>
+<div class="code" style="counter-reset: line 6"><span class="line">    <span class="code" style="--layer: 0">minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0</span></span>
 <span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="8:5-8:17: @0[3]: _4 = &amp;(*(*(_1.0: &amp;&amp;usize)))
 8:5-8:17: @0[4]: _3 = &amp;(*_4)
 8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge.-------.InstrumentCoverage.0.html
index b740a63aed9d1..60a832b2e2a8e 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge.-------.InstrumentCoverage.0.html
@@ -87,6 +87,6 @@
 4:39-4:49: @2[4]: _19 = &amp;_7
 4:39-4:49: @2[6]: _20 = &amp;_4
 4:39-4:49: @2[8]: _21 = &amp;_8
-4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span><span><span class="code even" style="--layer: 1" title="4:49-4:49: @4.Return: return"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span></span></div>
+4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
index 0ad35d701aafd..2b9a13fe0603f 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 6"><span class="line">    <span class="code" style="--layer: 0">minor: usize,</span></span>
+<div class="code" style="counter-reset: line 6"><span class="line">    <span class="code" style="--layer: 0">minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0</span></span>
 <span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="8:5-8:17: @0[3]: _4 = &amp;(*(*(_1.0: &amp;&amp;usize)))
 8:5-8:17: @0[4]: _3 = &amp;(*_4)
 8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt.-------.InstrumentCoverage.0.html
index 95b63edba87d5..f6b9dc9776f99 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-gt.-------.InstrumentCoverage.0.html
@@ -87,6 +87,6 @@
 4:39-4:49: @2[4]: _19 = &amp;_7
 4:39-4:49: @2[6]: _20 = &amp;_4
 4:39-4:49: @2[8]: _21 = &amp;_8
-4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span><span><span class="code even" style="--layer: 1" title="4:49-4:49: @4.Return: return"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span></span></div>
+4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
index d43d8526a88e7..5c95a635f0710 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 6"><span class="line">    <span class="code" style="--layer: 0">minor: usize,</span></span>
+<div class="code" style="counter-reset: line 6"><span class="line">    <span class="code" style="--layer: 0">minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0</span></span>
 <span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="8:5-8:17: @0[3]: _4 = &amp;(*(*(_1.0: &amp;&amp;usize)))
 8:5-8:17: @0[4]: _3 = &amp;(*_4)
 8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le.-------.InstrumentCoverage.0.html
index 906d074b71fb6..fb7e520faf1dd 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-le.-------.InstrumentCoverage.0.html
@@ -87,6 +87,6 @@
 4:39-4:49: @2[4]: _19 = &amp;_7
 4:39-4:49: @2[6]: _20 = &amp;_4
 4:39-4:49: @2[8]: _21 = &amp;_8
-4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span><span><span class="code even" style="--layer: 1" title="4:49-4:49: @4.Return: return"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span></span></div>
+4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
index a941c08da5d8c..b2b3e172d53db 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 6"><span class="line">    <span class="code" style="--layer: 0">minor: usize,</span></span>
+<div class="code" style="counter-reset: line 6"><span class="line">    <span class="code" style="--layer: 0">minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0</span></span>
 <span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="8:5-8:17: @0[3]: _4 = &amp;(*(*(_1.0: &amp;&amp;usize)))
 8:5-8:17: @0[4]: _3 = &amp;(*_4)
 8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt.-------.InstrumentCoverage.0.html
index 0da90113bddee..f111ad0045a11 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt.-------.InstrumentCoverage.0.html
@@ -87,6 +87,6 @@
 4:39-4:49: @2[4]: _19 = &amp;_7
 4:39-4:49: @2[6]: _20 = &amp;_4
 4:39-4:49: @2[8]: _21 = &amp;_8
-4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span><span><span class="code even" style="--layer: 1" title="4:49-4:49: @4.Return: return"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span></span></div>
+4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-partial_cmp.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-partial_cmp.-------.InstrumentCoverage.0.html
index c5a806f7c1718..2f5092bd51f0a 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-partial_cmp.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-partial_cmp.-------.InstrumentCoverage.0.html
@@ -69,10 +69,6 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line">                                      <span><span class="code even" style="--layer: 1" title="4:39-4:49: @17.Goto: goto -&gt; bb18"><span class="annotation">@17⦊</span></span></span><span class="code even" style="--layer: 2" title="4:39-4:49: @15[1]: _30 = Equal
-4:39-4:49: @15[2]: _0 = Option::&lt;std::cmp::Ordering&gt;::Some(move _30)
-4:39-4:49: @15.Goto: goto -&gt; bb16"><span class="annotation">@14,15⦊</span></span><span class="code even" style="--layer: 3" title="4:39-4:49: @16.Goto: goto -&gt; bb17"><span class="annotation">@16⦊</span>PartialOrd<span class="annotation">⦉@16</span></span><span class="code even" style="--layer: 2" title="4:39-4:49: @15[1]: _30 = Equal
-4:39-4:49: @15[2]: _0 = Option::&lt;std::cmp::Ordering&gt;::Some(move _30)
-4:39-4:49: @15.Goto: goto -&gt; bb16"><span class="annotation">⦉@14,15</span></span><span><span class="code even" style="--layer: 1" title="4:39-4:49: @17.Goto: goto -&gt; bb18"><span class="annotation">⦉@17</span></span></span><span><span class="code odd" style="--layer: 1" title="4:49-4:49: @18.Return: return"><span class="annotation">@18⦊</span>‸<span class="annotation">⦉@18</span></span></span></span></div>
+<div class="code" style="counter-reset: line 3"><span class="line">                                      <span><span class="code even" style="--layer: 1"><span class="annotation">@0,1⦊</span>‸<span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0">PartialOrd</span><span><span class="code odd" style="--layer: 1" title="4:49-4:49: @18.Return: return"><span class="annotation">@18⦊</span>‸<span class="annotation">⦉@18</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#4}-assert_receiver_is_total_eq.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#4}-assert_receiver_is_total_eq.-------.InstrumentCoverage.0.html
index b4beef867ebcc..ebb8b1c15ce08 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#4}-assert_receiver_is_total_eq.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#4}-assert_receiver_is_total_eq.-------.InstrumentCoverage.0.html
@@ -70,6 +70,6 @@
 </head>
 <body>
 <div class="code" style="counter-reset: line 3"><span class="line">                                  <span><span class="code even" style="--layer: 1" title="4:35-4:37: @0[0]: _0 = const ()
-4:37-4:37: @0.Return: return"><span class="annotation">@0⦊</span>Eq<span class="annotation">⦉@0</span></span></span></span></div>
+4:37-4:37: @0.Return: return"><span class="annotation">@0⦊</span>‸<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">Eq</span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#6}-eq.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#6}-eq.-------.InstrumentCoverage.0.html
index 92f37e4b89a93..2e128181c5e42 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#6}-eq.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#6}-eq.-------.InstrumentCoverage.0.html
@@ -69,9 +69,6 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line">                       <span><span class="code even" style="--layer: 1" title="4:24-4:33: @2[0]: _0 = const false
-4:24-4:33: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span></span></span><span class="code even" style="--layer: 2" title="4:24-4:33: @1[0]: _0 = const true
-4:24-4:33: @1.Goto: goto -&gt; bb4"><span class="annotation">@1⦊</span>PartialEq<span class="annotation">⦉@1</span></span><span><span class="code even" style="--layer: 1" title="4:24-4:33: @2[0]: _0 = const false
-4:24-4:33: @2.Goto: goto -&gt; bb4"><span class="annotation">⦉@2</span></span></span><span><span class="code odd" style="--layer: 1" title="4:33-4:33: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
+<div class="code" style="counter-reset: line 3"><span class="line">                       <span><span class="code even" style="--layer: 1"><span class="annotation">@0⦊</span>‸<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">PartialEq</span><span><span class="code odd" style="--layer: 1" title="4:33-4:33: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#6}-ne.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#6}-ne.-------.InstrumentCoverage.0.html
index df561a7922484..637b1c62086c5 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#6}-ne.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#6}-ne.-------.InstrumentCoverage.0.html
@@ -69,13 +69,6 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line">                       <span><span class="code even" style="--layer: 1" title="4:24-4:33: @2[0]: _0 = const false
-4:24-4:33: @2.Goto: goto -&gt; bb4"><span class="annotation">@2⦊</span></span></span><span class="code even" style="--layer: 2" title="4:24-4:33: @5[0]: _9 = const true
-4:24-4:33: @5.Goto: goto -&gt; bb8"><span class="annotation">@5⦊</span></span><span class="code even" style="--layer: 3" title="4:24-4:33: @6[0]: _9 = const false
-4:24-4:33: @6.Goto: goto -&gt; bb8"><span class="annotation">@6⦊</span></span><span class="code even" style="--layer: 4" title="4:24-4:33: @1[0]: _0 = const true
-4:24-4:33: @1.Goto: goto -&gt; bb4"><span class="annotation">@1⦊</span>PartialEq<span class="annotation">⦉@1</span></span><span class="code even" style="--layer: 3" title="4:24-4:33: @6[0]: _9 = const false
-4:24-4:33: @6.Goto: goto -&gt; bb8"><span class="annotation">⦉@6</span></span><span class="code even" style="--layer: 2" title="4:24-4:33: @5[0]: _9 = const true
-4:24-4:33: @5.Goto: goto -&gt; bb8"><span class="annotation">⦉@5</span></span><span><span class="code even" style="--layer: 1" title="4:24-4:33: @2[0]: _0 = const false
-4:24-4:33: @2.Goto: goto -&gt; bb4"><span class="annotation">⦉@2</span></span></span><span><span class="code odd" style="--layer: 1" title="4:33-4:33: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
+<div class="code" style="counter-reset: line 3"><span class="line">                       <span><span class="code even" style="--layer: 1"><span class="annotation">@0⦊</span>‸<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">PartialEq</span><span><span class="code odd" style="--layer: 1" title="4:33-4:33: @4.Return: return"><span class="annotation">@4⦊</span>‸<span class="annotation">⦉@4</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_loop/simple_loop.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_loop/simple_loop.main.-------.InstrumentCoverage.0.html
index 29d21cf7ba459..1233dfb5bab1f 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_loop/simple_loop.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_loop/simple_loop.main.-------.InstrumentCoverage.0.html
@@ -69,53 +69,108 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>fn main() {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"></span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 0_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)">    let mut countdown = 0<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    if</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="12:9-12:16: @3[6]: _7 = _1
-12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    // dependent conditions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    let is_true = std::env::args().len() == 1;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    let mut countdown = 0;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)">    if</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb15]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb14]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 0_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+12:9-12:16: @3[6]: _7 = _1
+12:9-12:16: @3[7]: FakeRead(ForMatchedPlace, _7)">        is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
+13:5-18:6: @6[1]: _6 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">        countdown</span></span>
+13:5-18:6: @6[1]: _6 = const ()">        countdown</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">        =</span></span>
+13:5-18:6: @6[1]: _6 = const ()">        =</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">            10</span></span>
+13:5-18:6: @6[1]: _6 = const ()">            10</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">        ;</span></span>
+13:5-18:6: @6[1]: _6 = const ()">        ;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="14:9-16:15: @6[0]: _5 = const 10_i32
-13:5-18:6: @6[1]: _6 = const ()
-18:6-18:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="18:6-18:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+13:5-18:6: @6[1]: _6 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="18:6-18:6: @5[0]: _6 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    loop</span></span>
 <span class="line"><span class="code" style="--layer: 0">    {</span></span>
@@ -132,15 +187,20 @@
 <span class="line"><span class="code" style="--layer: 0">        {</span></span>
 <span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="27:13-27:18: @12[0]: _0 = const ()"><span class="annotation">@10,12⦊</span>break<span class="annotation">⦉@10,12</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">            ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
-30:9-32:10: @13[0]: _5 = move (_13.0: i32)"><span class="annotation">@11,13⦊</span>countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
+<span class="line"><span class="code" style="--layer: 0">        }</span><span><span class="code odd" style="--layer: 1" title="29:10-29:10: @11[0]: _9 = const ()
+30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
+30:9-32:10: @13[0]: _5 = move (_13.0: i32)"><span class="annotation">@11,13⦊</span></span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="29:10-29:10: @11[0]: _9 = const ()
+30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
+30:9-32:10: @13[0]: _5 = move (_13.0: i32)">        countdown</span></span>
+<span class="line"><span class="code odd" style="--layer: 1" title="29:10-29:10: @11[0]: _9 = const ()
+30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
 30:9-32:10: @13[0]: _5 = move (_13.0: i32)">        -=</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
+<span class="line"><span class="code odd" style="--layer: 1" title="29:10-29:10: @11[0]: _9 = const ()
+30:9-32:10: @11[3]: _13 = CheckedSub(_5, const 1_i32)
 30:9-32:10: @13[0]: _5 = move (_13.0: i32)">        1<span class="annotation">⦉@11,13</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="34:6-34:6: @7.Goto: goto -&gt; bb8"><span class="annotation">@7⦊</span>‸<span class="annotation">⦉@7</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="35:2-35:2: @12.Return: return"><span class="annotation">@10,12⦊</span>‸<span class="annotation">⦉@10,12</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">    }</span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="35:2-35:2: @12.Return: return"><span class="annotation">@10,12⦊</span>‸<span class="annotation">⦉@10,12</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_match/simple_match.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_match/simple_match.main.-------.InstrumentCoverage.0.html
index f1513d458ebb6..a8bae32490b0b 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_match/simple_match.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.simple_match/simple_match.main.-------.InstrumentCoverage.0.html
@@ -69,41 +69,83 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 2"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
-<span class="line"><span class="code" style="--layer: 0">    // dependent conditions.</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
+<div class="code" style="counter-reset: line 2"><span class="line"><span><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 1_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"><span class="annotation">@0,1,2,3⦊</span>is_true = std::env::args().len() == 1;</span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>fn main() {</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 1_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)"></span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)">    // Initialize test constants in a way that cannot be determined at compile time, to ensure</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
 7:19-7:35: @1[0]: _3 = &amp;_4
 7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
 7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
 7:9-7:16: @2[3]: FakeRead(ForLet, _1)
 9:25-9:26: @3[2]: _5 = const 1_i32
-9:9-9:22: @3[3]: FakeRead(ForLet, _5)">    let mut countdown = 1<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="10:8-10:15: @3[6]: _7 = _1
-10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)"><span class="annotation">@0,1,2,3⦊</span>is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:22: @6[0]: _5 = const 0_i32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7"><span class="annotation">@4,6⦊</span>{</span></span>
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)">    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 1_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)">    // dependent conditions.</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 1_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)">    let is_true = std::env::args().len() == 1;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 1_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)"></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 1_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)">    let mut countdown = 1;</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="7:19-7:35: @0.Call: _4 = args() -&gt; [return: bb1, unwind: bb22]
+7:19-7:35: @1[0]: _3 = &amp;_4
+7:19-7:41: @1.Call: _2 = &lt;Args as ExactSizeIterator&gt;::len(move _3) -&gt; [return: bb2, unwind: bb21]
+7:19-7:46: @2[1]: _1 = Eq(move _2, const 1_usize)
+7:9-7:16: @2[3]: FakeRead(ForLet, _1)
+9:25-9:26: @3[2]: _5 = const 1_i32
+9:9-9:22: @3[3]: FakeRead(ForLet, _5)
+10:8-10:15: @3[6]: _7 = _1
+10:8-10:15: @3[7]: FakeRead(ForMatchedPlace, _7)">    if is_true<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="11:9-11:22: @6[0]: _5 = const 0_i32
+10:16-12:6: @6[1]: _6 = const ()"><span class="annotation">@4,6⦊</span>{</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:22: @6[0]: _5 = const 0_i32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7">        countdown = 0;</span></span>
+10:16-12:6: @6[1]: _6 = const ()">        countdown = 0;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="11:9-11:22: @6[0]: _5 = const 0_i32
-10:16-12:6: @6[1]: _6 = const ()
-12:6-12:6: @6.Goto: goto -&gt; bb7">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="12:6-12:6: @5.Goto: goto -&gt; bb7"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
+10:16-12:6: @6[1]: _6 = const ()">    }<span class="annotation">⦉@4,6</span></span></span><span><span class="code even" style="--layer: 1" title="12:6-12:6: @5[0]: _6 = const ()"><span class="annotation">@5⦊</span>‸<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    for</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="15:9-15:10: @15[1]: _18 = ((_14 as Some).0: i32)
@@ -128,51 +170,51 @@
 <span class="line"><span class="code odd" style="--layer: 1" title="26:17-26:18: @17[4]: _26 = (*_24)
 26:17-28:18: @17[5]: _25 = Lt(move _26, const 1_i32)">                    &lt;</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="26:17-26:18: @17[4]: _26 = (*_24)
-26:17-28:18: @17[5]: _25 = Lt(move _26, const 1_i32)">                1<span class="annotation">⦉@13,15,17</span></span></span><span><span class="code even" style="--layer: 1" title="28:18-28:18: @19.Goto: goto -&gt; bb16"><span class="annotation">@19⦊</span>‸<span class="annotation">⦉@19</span></span></span><span class="code" style="--layer: 0"></span></span>
+26:17-28:18: @17[5]: _25 = Lt(move _26, const 1_i32)">                1<span class="annotation">⦉@13,15,17</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">            =&gt;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
 31:17-31:30: @18[6]: _22 = move _27
 33:25-33:34: @18[9]: _28 = _5
 33:21-33:22: @18[10]: FakeRead(ForLet, _28)
 35:17-35:31: @18[11]: _5 = const 10_i32
 30:13-37:14: @18[12]: _21 = const ()"><span class="annotation">@18⦊</span>{</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
+<span class="line"><span class="code even" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
 31:17-31:30: @18[6]: _22 = move _27
 33:25-33:34: @18[9]: _28 = _5
 33:21-33:22: @18[10]: FakeRead(ForLet, _28)
 35:17-35:31: @18[11]: _5 = const 10_i32
 30:13-37:14: @18[12]: _21 = const ()">                z = countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
+<span class="line"><span class="code even" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
 31:17-31:30: @18[6]: _22 = move _27
 33:25-33:34: @18[9]: _28 = _5
 33:21-33:22: @18[10]: FakeRead(ForLet, _28)
 35:17-35:31: @18[11]: _5 = const 10_i32
 30:13-37:14: @18[12]: _21 = const ()">                ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
+<span class="line"><span class="code even" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
 31:17-31:30: @18[6]: _22 = move _27
 33:25-33:34: @18[9]: _28 = _5
 33:21-33:22: @18[10]: FakeRead(ForLet, _28)
 35:17-35:31: @18[11]: _5 = const 10_i32
 30:13-37:14: @18[12]: _21 = const ()">                let y = countdown</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
+<span class="line"><span class="code even" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
 31:17-31:30: @18[6]: _22 = move _27
 33:25-33:34: @18[9]: _28 = _5
 33:21-33:22: @18[10]: FakeRead(ForLet, _28)
 35:17-35:31: @18[11]: _5 = const 10_i32
 30:13-37:14: @18[12]: _21 = const ()">                ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
+<span class="line"><span class="code even" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
 31:17-31:30: @18[6]: _22 = move _27
 33:25-33:34: @18[9]: _28 = _5
 33:21-33:22: @18[10]: FakeRead(ForLet, _28)
 35:17-35:31: @18[11]: _5 = const 10_i32
 30:13-37:14: @18[12]: _21 = const ()">                countdown = 10</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
+<span class="line"><span class="code even" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
 31:17-31:30: @18[6]: _22 = move _27
 33:25-33:34: @18[9]: _28 = _5
 33:21-33:22: @18[10]: FakeRead(ForLet, _28)
 35:17-35:31: @18[11]: _5 = const 10_i32
 30:13-37:14: @18[12]: _21 = const ()">                ;</span></span>
-<span class="line"><span class="code odd" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
+<span class="line"><span class="code even" style="--layer: 1" title="31:21-31:30: @18[5]: _27 = _5
 31:17-31:30: @18[6]: _22 = move _27
 33:25-33:34: @18[9]: _28 = _5
 33:21-33:22: @18[10]: FakeRead(ForLet, _28)
@@ -180,9 +222,9 @@
 30:13-37:14: @18[12]: _21 = const ()">            }<span class="annotation">⦉@18</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">            _</span></span>
 <span class="line"><span class="code" style="--layer: 0">            =&gt;</span></span>
-<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="40:13-40:15: @16[0]: _21 = const ()"><span class="annotation">@16⦊</span>{}<span class="annotation">⦉@16</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code odd" style="--layer: 1" title="40:13-40:15: @16[0]: _21 = const ()"><span class="annotation">@16⦊</span>{}<span class="annotation">⦉@16</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code odd" style="--layer: 1" title="42:6-42:6: @8.Goto: goto -&gt; bb9"><span class="annotation">@7,8⦊</span>‸<span class="annotation">⦉@7,8</span></span></span><span><span class="code even" style="--layer: 1" title="42:6-42:6: @20.Goto: goto -&gt; bb9"><span class="annotation">@20⦊</span>‸<span class="annotation">⦉@20</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="43:2-43:2: @12.Return: return"><span class="annotation">@12⦊</span>‸<span class="annotation">⦉@12</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">    }</span></span>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="43:2-43:2: @12.Return: return"><span class="annotation">@12⦊</span>‸<span class="annotation">⦉@12</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.tight_inf_loop/tight_inf_loop.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.tight_inf_loop/tight_inf_loop.main.-------.InstrumentCoverage.0.html
index 5cf76ecf5c2cd..d0ee798ca1978 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.tight_inf_loop/tight_inf_loop.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.tight_inf_loop/tight_inf_loop.main.-------.InstrumentCoverage.0.html
@@ -69,12 +69,15 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 0"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="2:8-2:13: @0[1]: _1 = const false
-2:8-2:13: @0[2]: FakeRead(ForMatchedPlace, _1)"><span class="annotation">@0⦊</span>false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<div class="code" style="counter-reset: line 0"><span class="line"><span><span class="code even" style="--layer: 1" title="2:8-2:13: @0[1]: _1 = const false
+2:8-2:13: @0[2]: FakeRead(ForMatchedPlace, _1)"><span class="annotation">@0⦊</span>fn main() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="2:8-2:13: @0[1]: _1 = const false
+2:8-2:13: @0[2]: FakeRead(ForMatchedPlace, _1)">    if false<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="3:9-3:16: @4.FalseUnwind: falseUnwind -&gt; [real: bb5, cleanup: bb6]
-3:14-3:16: @5[0]: _3 = const ()"><span class="annotation">@4,5⦊</span>loop {}<span class="annotation">⦉@4,5</span></span></span><span><span class="code even" style="--layer: 1" title="3:16-3:16: @3.Goto: goto -&gt; bb4"><span class="annotation">@1,3⦊</span>‸<span class="annotation">⦉@1,3</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="5:2-5:2: @2.Return: return"><span class="annotation">@2⦊</span>‸<span class="annotation">⦉@2</span></span></span></span></div>
+3:14-3:16: @5[0]: _3 = const ()"><span class="annotation">@4,5⦊</span>loop {}<span class="annotation">⦉@4,5</span></span></span><span class="code" style="--layer: 0"></span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="4:6-4:6: @2[0]: _0 = const ()
+5:2-5:2: @2.Return: return"><span class="annotation">@2⦊</span></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="4:6-4:6: @2[0]: _0 = const ()
+5:2-5:2: @2.Return: return">}<span class="annotation">⦉@2</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.call.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.call.-------.InstrumentCoverage.0.html
index eeee81daeb21c..804d2f4388679 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.call.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.call.-------.InstrumentCoverage.0.html
@@ -69,9 +69,10 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn call(return_error: bool) -&gt; Result&lt;(),()&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    if </span><span><span class="code even" style="--layer: 1" title="5:8-5:20: @0[1]: _2 = _1
-5:8-5:20: @0[2]: FakeRead(ForMatchedPlace, _2)"><span class="annotation">@0⦊</span>return_error<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
+<div class="code" style="counter-reset: line 3"><span class="line"><span><span class="code even" style="--layer: 1" title="5:8-5:20: @0[1]: _2 = _1
+5:8-5:20: @0[2]: FakeRead(ForMatchedPlace, _2)"><span class="annotation">@0⦊</span>fn call(return_error: bool) -&gt; Result&lt;(),()&gt; {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="5:8-5:20: @0[1]: _2 = _1
+5:8-5:20: @0[2]: FakeRead(ForMatchedPlace, _2)">    if return_error<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0"> {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="6:13-6:15: @3[1]: _3 = ()
 6:9-6:16: @3[2]: _0 = std::result::Result::&lt;(), ()&gt;::Err(move _3)"><span class="annotation">@1,3⦊</span>Err(())<span class="annotation">⦉@1,3</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    } else {</span></span>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.main.-------.InstrumentCoverage.0.html
index b9391e26c86de..3091eab3e7149 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.try_error_result/try_error_result.main.-------.InstrumentCoverage.0.html
@@ -69,9 +69,10 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 11"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),()&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="14:21-14:23: @0[1]: _1 = const 10_i32
-13:9-14:18: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0,1⦊</span>mut</span></span>
+<div class="code" style="counter-reset: line 11"><span class="line"><span><span class="code even" style="--layer: 1" title="14:21-14:23: @0[1]: _1 = const 10_i32
+13:9-14:18: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0,1⦊</span>fn main() -&gt; Result&lt;(),()&gt; {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="14:21-14:23: @0[1]: _1 = const 10_i32
+13:9-14:18: @0[2]: FakeRead(ForLet, _1)">    let mut</span></span>
 <span class="line"><span class="code even" style="--layer: 1" title="14:21-14:23: @0[1]: _1 = const 10_i32
 13:9-14:18: @0[2]: FakeRead(ForLet, _1)">        countdown = 10<span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">    ;</span></span>
@@ -124,10 +125,10 @@
 <span class="line"><span class="code" style="--layer: 0">            </span><span><span class="code even" style="--layer: 1" title="32:13-32:42: @11.Call: _40 = call(const false) -&gt; [return: bb29, unwind: bb40]"><span class="annotation">@11,29,30⦊</span>call(/*return_error=*/ false)<span class="annotation">⦉@11,29,30</span></span></span><span><span class="code odd" style="--layer: 1" title="32:42-32:43: @34[1]: _42 = ((_39 as Err).0: ())
 32:42-32:43: @34[4]: _45 = _42
 32:42-32:43: @34.Call: _44 = &lt;() as From&lt;()&gt;&gt;::from(move _45) -&gt; [return: bb35, unwind: bb40]"><span class="annotation">@32,34,35,36⦊</span>?<span class="annotation">⦉@32,34,35,36</span></span></span><span class="code" style="--layer: 0">;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span><span><span class="code even" style="--layer: 1" title="33:10-33:10: @23.Goto: goto -&gt; bb37"><span class="annotation">@23⦊</span>‸<span class="annotation">⦉@23</span></span></span><span><span class="code odd" style="--layer: 1" title="33:10-33:10: @31.Goto: goto -&gt; bb37"><span class="annotation">@31⦊</span>‸<span class="annotation">⦉@31</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    }</span><span><span class="code even" style="--layer: 1" title="34:6-34:6: @37.Goto: goto -&gt; bb2"><span class="annotation">@37⦊</span>‸<span class="annotation">⦉@37</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="35:8-35:10: @5[9]: _47 = ()
+<span class="line"><span class="code" style="--layer: 0">        }</span></span>
+<span class="line"><span class="code" style="--layer: 0">    }</span></span>
+<span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code even" style="--layer: 1" title="35:8-35:10: @5[9]: _47 = ()
 35:5-35:11: @5[10]: _0 = std::result::Result::&lt;(), ()&gt;::Ok(move _47)"><span class="annotation">@5⦊</span>Ok(())<span class="annotation">⦉@5</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="36:2-36:2: @38.Goto: goto -&gt; bb39"><span class="annotation">@38⦊</span>‸<span class="annotation">⦉@38</span></span></span><span><span class="code odd" style="--layer: 1" title="36:2-36:2: @39.Return: return"><span class="annotation">@39⦊</span>‸<span class="annotation">⦉@39</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="36:2-36:2: @39.Return: return"><span class="annotation">@39⦊</span>‸<span class="annotation">⦉@39</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while/while.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while/while.main.-------.InstrumentCoverage.0.html
index 05c010da7bc54..f037a8ee5c52f 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while/while.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while/while.main.-------.InstrumentCoverage.0.html
@@ -69,9 +69,10 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 0"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="2:15-2:16: @0[1]: _1 = const 9_i32
-2:9-2:12: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>num = 9<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 0"><span class="line"><span><span class="code even" style="--layer: 1" title="2:15-2:16: @0[1]: _1 = const 9_i32
+2:9-2:12: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>fn main() {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="2:15-2:16: @0[1]: _1 = const 9_i32
+2:9-2:12: @0[2]: FakeRead(ForLet, _1)">    let num = 9<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    while </span><span><span class="code odd" style="--layer: 1" title="3:11-3:14: @2[2]: _4 = _1
 3:11-3:20: @2[3]: _3 = Ge(move _4, const 10_i32)
 3:11-3:20: @2[5]: FakeRead(ForMatchedPlace, _3)"><span class="annotation">@1,2⦊</span>num &gt;= 10<span class="annotation">⦉@1,2</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="3:21-4:6: @5[0]: _2 = const ()"><span class="annotation">@3,5⦊</span>{</span></span>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while_early_ret/while_early_ret.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while_early_ret/while_early_ret.main.-------.InstrumentCoverage.0.html
index 87ce501ca8cc6..4cab153e77f53 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while_early_ret/while_early_ret.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.while_early_ret/while_early_ret.main.-------.InstrumentCoverage.0.html
@@ -69,9 +69,10 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 3"><span class="line"><span class="code" style="--layer: 0">fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
-<span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="5:25-5:27: @0[1]: _1 = const 10_i32
-5:9-5:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 3"><span class="line"><span><span class="code even" style="--layer: 1" title="5:25-5:27: @0[1]: _1 = const 10_i32
+5:9-5:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0⦊</span>fn main() -&gt; Result&lt;(),u8&gt; {</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="5:25-5:27: @0[1]: _1 = const 10_i32
+5:9-5:22: @0[2]: FakeRead(ForLet, _1)">    let mut countdown = 10<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    while</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="7:9-7:18: @2[2]: _5 = _1
 7:9-9:10: @2[3]: _4 = Gt(move _5, const 0_i32)
@@ -114,17 +115,22 @@
 <span class="line"><span class="code" style="--layer: 0">                    </span><span><span class="code odd" style="--layer: 1" title="26:21-26:27: @10[0]: _0 = std::result::Result::&lt;(), u8&gt;::Err(const 1_u8)"><span class="annotation">@10⦊</span>Err(1)<span class="annotation">⦉@10</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">                }</span></span>
 <span class="line"><span class="code" style="--layer: 0">                ;</span></span>
-<span class="line"><span class="code" style="--layer: 0">        }</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
-30:9-32:10: @12[0]: _1 = move (_13.0: i32)"><span class="annotation">@7,12⦊</span>countdown</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
+<span class="line"><span class="code" style="--layer: 0">        }</span><span><span class="code even" style="--layer: 1" title="29:10-29:10: @7[0]: _6 = const ()
+30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
+30:9-32:10: @12[0]: _1 = move (_13.0: i32)"><span class="annotation">@7,12⦊</span></span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="29:10-29:10: @7[0]: _6 = const ()
+30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
+30:9-32:10: @12[0]: _1 = move (_13.0: i32)">        countdown</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="29:10-29:10: @7[0]: _6 = const ()
+30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
 30:9-32:10: @12[0]: _1 = move (_13.0: i32)">            -=</span></span>
-<span class="line"><span class="code even" style="--layer: 1" title="30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
+<span class="line"><span class="code even" style="--layer: 1" title="29:10-29:10: @7[0]: _6 = const ()
+30:9-32:10: @7[3]: _13 = CheckedSub(_1, const 1_i32)
 30:9-32:10: @12[0]: _1 = move (_13.0: i32)">        1<span class="annotation">⦉@7,12</span></span></span><span class="code" style="--layer: 0"></span></span>
 <span class="line"><span class="code" style="--layer: 0">        ;</span></span>
 <span class="line"><span class="code" style="--layer: 0">    }</span></span>
 <span class="line"><span class="code" style="--layer: 0">    </span><span><span class="code odd" style="--layer: 1" title="35:8-35:10: @4[4]: _15 = ()
 35:5-35:11: @4[5]: _0 = std::result::Result::&lt;(), u8&gt;::Ok(move _15)"><span class="annotation">@4⦊</span>Ok(())<span class="annotation">⦉@4</span></span></span><span class="code" style="--layer: 0"></span></span>
-<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="36:2-36:2: @13.Goto: goto -&gt; bb14"><span class="annotation">@13⦊</span>‸<span class="annotation">⦉@13</span></span></span><span><span class="code odd" style="--layer: 1" title="36:2-36:2: @14.Return: return"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span></span></div>
+<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code even" style="--layer: 1" title="36:2-36:2: @14.Return: return"><span class="annotation">@14⦊</span>‸<span class="annotation">⦉@14</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-{closure#0}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-{closure#0}.-------.InstrumentCoverage.0.html
index b8458f9d8d655..1e68c345f849b 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-{closure#0}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-{closure#0}.-------.InstrumentCoverage.0.html
@@ -69,8 +69,8 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 7"><span class="line">                        <span class="code" style="--layer: 0">|| {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="9:9-9:16: @0.Yield: _3 = yield(const 1_i32) -&gt; [resume: bb1, drop: bb2]"><span class="annotation">@0⦊</span>yield 1<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 7"><span class="line">                        <span class="code" style="--layer: 0">|| </span><span><span class="code even" style="--layer: 1" title="9:9-9:16: @0.Yield: _3 = yield(const 1_i32) -&gt; [resume: bb1, drop: bb2]"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="9:9-9:16: @0.Yield: _3 = yield(const 1_i32) -&gt; [resume: bb1, drop: bb2]">        yield 1<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        return </span><span><span class="code odd" style="--layer: 1" title="10:16-10:21: @1[1]: _0 = const &quot;foo&quot;
 11:6-11:6: @1.Return: return"><span class="annotation">@1⦊</span>"foo"</span></span>
 <span class="line"><span class="code odd" style="--layer: 1" title="10:16-10:21: @1[1]: _0 = const &quot;foo&quot;
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-{closure#1}.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-{closure#1}.-------.InstrumentCoverage.0.html
index 2387f40847ad4..842d7823bfd12 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-{closure#1}.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main-{closure#1}.-------.InstrumentCoverage.0.html
@@ -69,8 +69,8 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 21"><span class="line">                        <span class="code" style="--layer: 0">|| {</span></span>
-<span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="23:9-23:16: @0.Yield: _3 = yield(const 1_i32) -&gt; [resume: bb1, drop: bb6]"><span class="annotation">@0⦊</span>yield 1<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
+<div class="code" style="counter-reset: line 21"><span class="line">                        <span class="code" style="--layer: 0">|| </span><span><span class="code even" style="--layer: 1" title="23:9-23:16: @0.Yield: _3 = yield(const 1_i32) -&gt; [resume: bb1, drop: bb6]"><span class="annotation">@0⦊</span>{</span></span>
+<span class="line"><span class="code even" style="--layer: 1" title="23:9-23:16: @0.Yield: _3 = yield(const 1_i32) -&gt; [resume: bb1, drop: bb6]">        yield 1<span class="annotation">⦉@0</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code odd" style="--layer: 1" title="24:9-24:16: @1.Yield: _4 = yield(const 2_i32) -&gt; [resume: bb2, drop: bb5]"><span class="annotation">@1⦊</span>yield 2<span class="annotation">⦉@1</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        </span><span><span class="code even" style="--layer: 1" title="25:9-25:16: @2.Yield: _5 = yield(const 3_i32) -&gt; [resume: bb3, drop: bb4]"><span class="annotation">@2⦊</span>yield 3<span class="annotation">⦉@2</span></span></span><span class="code" style="--layer: 0">;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        return </span><span><span class="code odd" style="--layer: 1" title="26:16-26:21: @3[1]: _0 = const &quot;foo&quot;
diff --git a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main.-------.InstrumentCoverage.0.html b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main.-------.InstrumentCoverage.0.html
index 7c974d7f97bc4..99e56393ea599 100644
--- a/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main.-------.InstrumentCoverage.0.html
+++ b/src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.yield/yield.main.-------.InstrumentCoverage.0.html
@@ -69,7 +69,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 6"><span class="line"><span class="code" style="--layer: 0">fn main() {</span></span>
+<div class="code" style="counter-reset: line 6"><span class="line"><span><span class="code even" style="--layer: 1"><span class="annotation">@0,1,2⦊</span>fn main() <span class="annotation">⦉@0,1,2</span></span></span><span class="code" style="--layer: 0">{</span></span>
 <span class="line"><span class="code" style="--layer: 0">    let </span><span><span class="code even" style="--layer: 1" title="8:9-8:22: @0[2]: FakeRead(ForLet, _1)"><span class="annotation">@0,1,2⦊</span>mut generator<span class="annotation">⦉@0,1,2</span></span></span><span class="code" style="--layer: 0"> = || {</span></span>
 <span class="line"><span class="code" style="--layer: 0">        yield 1;</span></span>
 <span class="line"><span class="code" style="--layer: 0">        return "foo"</span></span>
diff --git a/src/test/run-make-fulldeps/coverage/abort.rs b/src/test/run-make-fulldeps/coverage/abort.rs
index 01c5c92054717..52c6ff333e4ea 100644
--- a/src/test/run-make-fulldeps/coverage/abort.rs
+++ b/src/test/run-make-fulldeps/coverage/abort.rs
@@ -11,12 +11,18 @@ fn might_abort(should_abort: bool) {
     }
 }
 
-fn main() -> Result<(),u8> {
+fn main() -> Result<(), u8> {
     let mut countdown = 10;
     while countdown > 0 {
         if countdown < 5 {
             might_abort(false);
         }
+        // See discussion (below the `Notes` section) on coverage results for the closing brace.
+        if countdown < 5 { might_abort(false); } // Counts for different regions on one line.
+        // For the following example, the closing brace is the last character on the line.
+        // This shows the character after the closing brace is highlighted, even if that next
+        // character is a newline.
+        if countdown < 5 { might_abort(false); }
         countdown -= 1;
     }
     Ok(())
@@ -32,3 +38,30 @@ fn main() -> Result<(),u8> {
 //      intended"). Coverage results would show no executed coverage regions.
 //   6. If `should_abort` is `true` and the program aborts, the program exits with a `132` status
 //      (on Linux at least).
+
+/*
+
+Expect the following coverage results:
+
+```text
+    16|     11|    while countdown > 0 {
+    17|     10|        if countdown < 5 {
+    18|      4|            might_abort(false);
+    19|      6|        }
+```
+
+This is actually correct.
+
+The condition `countdown < 5` executed 10 times (10 loop iterations).
+
+It evaluated to `true` 4 times, and executed the `might_abort()` call.
+
+It skipped the body of the `might_abort()` call 6 times. If an `if` does not include an explicit
+`else`, the coverage implementation injects a counter, at the character immediately after the `if`s
+closing brace, to count the "implicit" `else`. This is the only way to capture the coverage of the
+non-true condition.
+
+As another example of why this is important, say the condition was `countdown < 50`, which is always
+`true`. In that case, we wouldn't have a test for what happens if `might_abort()` is not called.
+The closing brace would have a count of `0`, highlighting the missed coverage.
+*/
diff --git a/src/test/run-make-fulldeps/coverage/async.rs b/src/test/run-make-fulldeps/coverage/async.rs
index f69b8dce89339..fcf6f76944e81 100644
--- a/src/test/run-make-fulldeps/coverage/async.rs
+++ b/src/test/run-make-fulldeps/coverage/async.rs
@@ -2,37 +2,98 @@
 
 // require-rust-edition-2018
 
+async fn c(x: u8) -> u8 {
+    if x == 8 {
+        1
+    } else {
+        0
+    }
+}
+
+async fn d() -> u8 { 1 }
+
+async fn e() -> u8 { 1 } // unused function; executor does not block on `g()`
+
 async fn f() -> u8 { 1 }
 
-async fn foo() -> [bool; 10] { [false; 10] }
+async fn foo() -> [bool; 10] { [false; 10] } // unused function; executor does not block on `h()`
 
 pub async fn g(x: u8) {
     match x {
+        y if e().await == y => (),
         y if f().await == y => (),
         _ => (),
     }
 }
 
-// #78366: check the reference to the binding is recorded even if the binding is not autorefed
-
-async fn h(x: usize) {
+async fn h(x: usize) { // The function signature is counted when called, but the body is not
+                       // executed (not awaited) so the open brace has a `0` count (at least when
+                       // displayed with `llvm-cov show` in color-mode).
     match x {
         y if foo().await[y] => (),
         _ => (),
     }
 }
 
-async fn i(x: u8) {
+async fn i(x: u8) { // line coverage is 1, but there are 2 regions:
+                    // (a) the function signature, counted when the function is called; and
+                    // (b) the open brace for the function body, counted once when the body is
+                    // executed asynchronously.
     match x {
+        y if c(x).await == y + 1 => { d().await; }
         y if f().await == y + 1 => (),
         _ => (),
     }
 }
 
+fn j(x: u8) {
+    // non-async versions of `c()`, `d()`, and `f()` to make it similar to async `i()`.
+    fn c(x: u8) -> u8 {
+        if x == 8 {
+            1 // This line appears covered, but the 1-character expression span covering the `1`
+              // is not executed. (`llvm-cov show` displays a `^0` below the `1` ). This is because
+              // `fn j()` executes the open brace for the funciton body, followed by the function's
+              // first executable statement, `match x`. Inner function declarations are not
+              // "visible" to the MIR for `j()`, so the code region counts all lines between the
+              // open brace and the first statement as executed, which is, in a sense, true.
+              // `llvm-cov show` overcomes this kind of situation by showing the actual counts
+              // of the enclosed coverages, (that is, the `1` expression was not executed, and
+              // accurately displays a `0`).
+        } else {
+            0
+        }
+    }
+    fn d() -> u8 { 1 }
+    fn f() -> u8 { 1 }
+    match x {
+        y if c(x) == y + 1 => { d(); }
+        y if f() == y + 1 => (),
+        _ => (),
+    }
+}
+
+fn k(x: u8) { // unused function
+    match x {
+        1 => (),
+        2 => (),
+        _ => (),
+    }
+}
+
+fn l(x: u8) {
+    match x {
+        1 => (),
+        2 => (),
+        _ => (),
+    }
+}
+
 fn main() {
     let _ = g(10);
     let _ = h(9);
     let mut future = Box::pin(i(8));
+    j(7);
+    l(6);
     executor::block_on(future.as_mut());
 }
 
diff --git a/src/test/run-make-fulldeps/coverage/closure.rs b/src/test/run-make-fulldeps/coverage/closure.rs
index 66bbbc55399fe..914cb0fe051c7 100644
--- a/src/test/run-make-fulldeps/coverage/closure.rs
+++ b/src/test/run-make-fulldeps/coverage/closure.rs
@@ -90,4 +90,66 @@ fn main() {
             a
         )
     );
+
+    let
+        quote_closure
+    =
+        |val|
+    {
+        let mut countdown = 0;
+        if is_false {
+            countdown = 10;
+        }
+        format!("'{}'", val)
+    };
+    println!(
+        "Repeated, quoted string: {:?}"
+        ,
+        std::iter::repeat("repeat me")
+            .take(5)
+            .map
+        (
+            quote_closure
+        )
+            .collect::<Vec<_>>()
+    );
+
+    let
+        _unused_closure
+    =
+        |
+            mut countdown
+        |
+    {
+        if is_false {
+            countdown = 10;
+        }
+        "closure should be unused".to_owned()
+    };
+
+    let mut countdown = 10;
+    let _short_unused_closure = | _unused_arg: u8 | countdown += 1;
+
+    // Macros can sometimes confuse the coverage results. Compare this next assignment, with an
+    // unused closure that invokes the `println!()` macro, with the closure assignment above, that
+    // does not use a macro. The closure above correctly shows `0` executions.
+    let _short_unused_closure = | _unused_arg: u8 | println!("not called");
+    // The closure assignment above is executed, with a line count of `1`, but the `println!()`
+    // could not have been called, and yet, there is no indication that it wasn't...
+
+    // ...but adding block braces gives the expected result, showing the block was not executed.
+    let _short_unused_closure_block = | _unused_arg: u8 | { println!("not called") };
+
+    let _shortish_unused_closure = | _unused_arg: u8 | {
+        println!("not called")
+    };
+
+    let _as_short_unused_closure = |
+        _unused_arg: u8
+    | { println!("not called") };
+
+    let _almost_as_short_unused_closure = |
+        _unused_arg: u8
+    | { println!("not called") }
+    ;
 }
diff --git a/src/test/run-make-fulldeps/coverage/conditions.rs b/src/test/run-make-fulldeps/coverage/conditions.rs
index 1a8bafa50d468..8a2a0b53e5862 100644
--- a/src/test/run-make-fulldeps/coverage/conditions.rs
+++ b/src/test/run-make-fulldeps/coverage/conditions.rs
@@ -37,18 +37,6 @@ fn main() {
     }
 
     if true {
-        // Demonstrate the difference with `TerminatorKind::Assert` as of 2020-11-15. Assert is no
-        // longer treated as a `BasicCoverageBlock` terminator, which changed the coverage region,
-        // for the executed `then` block above, to include the closing brace on line 30. That
-        // changed the line count, but the coverage code region (for the `else if` condition) is
-        // still valid.
-        //
-        // Note that `if` (then) and `else` blocks include the closing brace in their coverage
-        // code regions when the last line in the block ends in a semicolon, because the Rust
-        // compiler inserts a `StatementKind::Assign` to assign `const ()` to a `Place`, for the
-        // empty value for the executed block. When the last line does not end in a semicolon
-        // (that is, when the block actually results in a value), the additional `Assign` is not
-        // generated, and the brace is not included.
         let mut countdown = 0;
         if true {
             countdown = 10;
@@ -57,11 +45,6 @@ fn main() {
         if countdown > 7 {
             countdown -= 4;
         }
-        // The closing brace of the `then` branch is now included in the coverage region, and shown
-        // as "executed" (giving its line a count of 1 here). Since, in the original version above,
-        // the closing brace shares the same line as the `else if` conditional expression (which is
-        // not executed if the first `then` condition is true), only the condition's code region is
-        // marked with a count of 0 now.
         else if countdown > 2 {
             if countdown < 1 || countdown > 5 || countdown != 9 {
                 countdown = 0;
@@ -70,7 +53,8 @@ fn main() {
         } else {
             return;
         }
-    }
+    } // Note: closing brace shows uncovered (vs. `0` for implicit else) because condition literal
+      // `true` was const-evaluated. The compiler knows the `if` block will be executed.
 
     let mut countdown = 0;
     if true {
diff --git a/src/test/run-make-fulldeps/coverage/coverage_tools.mk b/src/test/run-make-fulldeps/coverage/coverage_tools.mk
index 867a3566ac3af..7dc485cd94d66 100644
--- a/src/test/run-make-fulldeps/coverage/coverage_tools.mk
+++ b/src/test/run-make-fulldeps/coverage/coverage_tools.mk
@@ -2,39 +2,16 @@
 # file with the line:
 #
 # -include ../instrument-coverage/coverage_tools.mk
-#
-# To enable the Rust compiler option `-C link-dead-code`, also set the following variable
-# *BEFORE* the `-include` line:
-#
-# LINK_DEAD_CODE=yes
 
 -include ../tools.mk
 
-ifndef LINK_DEAD_CODE
-	LINK_DEAD_CODE=no
-endif
-
 # ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and
 # `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`
 # file, required for coverage reports.
 #
-# Enabling `-C link-dead-code` is preferred when compiling with `-Z instrument-coverage`, so
-# `-C link-dead-code` is automatically enabled for all platform targets _except_ MSVC.
-#
-# Making the state of `-C link-dead-code` platform-dependent creates a problem for cross-platform
-# tests because the injected counters, coverage reports, and some low-level output can be different,
-# depending on the `-C link-dead-code` setting. For example, coverage reports will not report any
-# coverage for a dead code region when the `-C link-dead-code` option is disabled, but with the
-# option enabled, those same regions will show coverage counter values (of zero, of course).
-#
-# To ensure cross-platform `-Z instrument-coverage` generate consistent output, the
-# `-C link-dead-code` option is always explicitly enabled or disabled.
-#
-# Since tests that execute binaries enabled with both `-Z instrument-coverage` and
-# `-C link-dead-code` are known to fail, those tests will need the `# ignore-msvc` setting.
-#
-# If and when the above issue is resolved, the `# ignore-msvc` option can be removed, and the
-# tests can be simplified to always test with `-C link-dead-code`.
+# Enabling `-C link-dead-code` is not necessary when compiling with `-Z instrument-coverage`,
+# due to improvements in the coverage map generation, to add unreachable functions known to Rust.
+# Therefore, `-C link-dead-code` is no longer automatically enabled.
 
 UNAME = $(shell uname)
 
diff --git a/src/test/run-make-fulldeps/coverage/dead_code.rs b/src/test/run-make-fulldeps/coverage/dead_code.rs
new file mode 100644
index 0000000000000..a1285df0ec62a
--- /dev/null
+++ b/src/test/run-make-fulldeps/coverage/dead_code.rs
@@ -0,0 +1,37 @@
+#![allow(unused_assignments, unused_variables)]
+
+pub fn unused_pub_fn_not_in_library() {
+    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    // dependent conditions.
+    let is_true = std::env::args().len() == 1;
+
+    let mut countdown = 0;
+    if is_true {
+        countdown = 10;
+    }
+}
+
+fn unused_fn() {
+    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    // dependent conditions.
+    let is_true = std::env::args().len() == 1;
+
+    let mut countdown = 0;
+    if is_true {
+        countdown = 10;
+    }
+}
+
+fn main() {
+    // Initialize test constants in a way that cannot be determined at compile time, to ensure
+    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
+    // dependent conditions.
+    let is_true = std::env::args().len() == 1;
+
+    let mut countdown = 0;
+    if is_true {
+        countdown = 10;
+    }
+}
diff --git a/src/test/run-make-fulldeps/coverage/generics.rs b/src/test/run-make-fulldeps/coverage/generics.rs
index f4e6402694480..cbeda35d3b8cf 100644
--- a/src/test/run-make-fulldeps/coverage/generics.rs
+++ b/src/test/run-make-fulldeps/coverage/generics.rs
@@ -30,7 +30,11 @@ fn main() -> Result<(),u8> {
     if true {
         println!("Exiting with error...");
         return Err(1);
-    }
+    } // The remaining lines below have no coverage because `if true` (with the constant literal
+      // `true`) is guaranteed to execute the `then` block, which is also guaranteed to `return`.
+      // Thankfully, in the normal case, conditions are not guaranteed ahead of time, and as shown
+      // in other tests, the lines below would have coverage (which would show they had `0`
+      // executions, assuming the condition still evaluated to `true`).
 
     let _ = Firework { strength: 1000 };
 
diff --git a/src/test/run-make-fulldeps/coverage/panic_unwind.rs b/src/test/run-make-fulldeps/coverage/panic_unwind.rs
index 02fa01ab96234..b6c0c080762b2 100644
--- a/src/test/run-make-fulldeps/coverage/panic_unwind.rs
+++ b/src/test/run-make-fulldeps/coverage/panic_unwind.rs
@@ -10,7 +10,7 @@ fn might_panic(should_panic: bool) {
     }
 }
 
-fn main() -> Result<(),u8> {
+fn main() -> Result<(), u8> {
     let mut countdown = 10;
     while countdown > 0 {
         if countdown == 1 {
@@ -42,8 +42,8 @@ fn main() -> Result<(),u8> {
 //   5. The reason the coverage results actually show `panic!()` was called is most likely because
 //      `panic!()` is a macro, not a simple function call, and there are other `Statement`s and/or
 //      `Terminator`s that execute with a coverage counter before the panic and unwind occur.
-//   6. By best practice, programs should not panic. By design, the coverage implementation will not
-//      incur additional cost (in program size and execution time) to improve coverage results for
-//      an event that is not supposted to happen.
+//   6. Since the common practice is not to use `panic!()` for error handling, the coverage
+//      implementation avoids incurring an additional cost (in program size and execution time) to
+//      improve coverage results for an event that is generally not "supposed" to happen.
 //   7. FIXME(#78544): This issue describes a feature request for a proposed option to enable
 //      more accurate coverage results for tests that intentionally panic.
diff --git a/src/test/run-make-fulldeps/coverage/partial_eq.rs b/src/test/run-make-fulldeps/coverage/partial_eq.rs
index 334fb3364ccc4..547026f950235 100644
--- a/src/test/run-make-fulldeps/coverage/partial_eq.rs
+++ b/src/test/run-make-fulldeps/coverage/partial_eq.rs
@@ -4,8 +4,8 @@
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
 pub struct Version {
     major: usize,
-    minor: usize,
-    patch: usize,
+    minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0
+    patch: usize, // Count: 0 - `PartialOrd` was determined by `minor` (2 < 3)
 }
 
 impl Version {
@@ -44,56 +44,3 @@ one expression, which is allowed, but the `function_source_hash` was only passed
 `function_source_hash` without a code region, if necessary.
 
 */
-
-// FIXME(richkadel): It may be worth investigating why the coverage report for this test produces
-// the following results:
-
-/*
-
-1. Why are their two counts below different characters (first and last) of `PartialOrd`, on line 17?
-
-2. Line 17 is counted twice, but the `::lt` instance shows a line count of 1? Is there a missing
-   line count with a different instance? Or was it really only called once?
-
-3. Line 20 shows another line count (of 1) for a line within a `struct` declaration (on only one of
-   its 3 fields). I doubt the specific field (`minor`) is relevant, but rather I suspect there's a
-   problem computing the file position here, for some reason.
-
-<snip>
-   16|       |
-   17|      2|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-                                                    ^1       ^1
-------------------
-|Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::gt
-------------------
-|Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::le
-------------------
-|Unexecuted instantiation: <partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::ge
-------------------
-|<partial_eq_counter_without_region::Version as core::cmp::PartialOrd>::lt:
-|  17|      1|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-------------------
-   18|       |pub struct Version {
-   19|       |    major: usize,
-   20|      1|    minor: usize,
-   21|       |    patch: usize,
-   22|       |}
-   23|       |
-   24|       |impl Version {
-   25|       |    pub fn new(major: usize, minor: usize, patch: usize) -> Self {
-   26|      2|        Version {
-   27|      2|            major,
-   28|      2|            minor,
-   29|      2|            patch,
-   30|      2|        }
-   31|      2|    }
-   32|       |}
-   33|       |
-   34|      1|fn main() {
-   35|      1|    let version_3_2_1 = Version::new(3, 2, 1);
-   36|      1|    let version_3_3_0 = Version::new(3, 3, 0);
-   37|      1|
-   38|      1|    println!("{:?} < {:?} = {}", version_3_2_1, version_3_3_0, version_3_2_1 < version
-_3_3_0);
-   39|      1|}
-*/
diff --git a/src/test/run-make-fulldeps/coverage/while_early_ret.rs b/src/test/run-make-fulldeps/coverage/while_early_ret.rs
index 14ba36238d62f..1fcea9c85c44a 100644
--- a/src/test/run-make-fulldeps/coverage/while_early_ret.rs
+++ b/src/test/run-make-fulldeps/coverage/while_early_ret.rs
@@ -40,8 +40,3 @@ fn main() -> Result<(),u8> {
 // and MacOS. But on Windows (MSVC, at least), the call to `std::process::exit()` exits the program
 // without saving the InstrProf coverage counters. The use of `std::process:exit()` is not critical
 // to the coverage test for early returns, but this is a limitation that should be fixed.
-//
-// FIXME(richkadel): Consider creating a new tests for coverage when calling `std::process::exit()`,
-// move the `ISSUE` comment to that test, and implement a new test directive that supports skipping
-// coverage tests when targeting specific platforms (at least skipping Windows, or MSVC if the
-// problem exists on MSVC only).