Use debug log level for developer oriented logs

compiler/rustc_mir/src/transform/inline.rs

@@ -159,7 +159,7 @@ impl Inliner<'tcx> {
         }
     }
 
-    #[instrument(skip(self, caller_body))]
+    #[instrument(level = "debug", skip(self, caller_body))]
     fn is_mir_available(&self, callee: Instance<'tcx>, caller_body: &Body<'tcx>) -> bool {
         match callee.def {
             InstanceDef::Item(_) => {
@@ -258,7 +258,7 @@ impl Inliner<'tcx> {
         None
     }
 
-    #[instrument(skip(self, callee_body))]
+    #[instrument(level = "debug", skip(self, callee_body))]
     fn should_inline(&self, callsite: CallSite<'tcx>, callee_body: &Body<'tcx>) -> bool {
         let tcx = self.tcx;
 

compiler/rustc_mir/src/transform/inline/cycle.rs

@@ -7,7 +7,7 @@ use rustc_middle::ty::{self, subst::SubstsRef, InstanceDef, TyCtxt};
 
 // FIXME: check whether it is cheaper to precompute the entire call graph instead of invoking
 // this query riddiculously often.
-#[instrument(skip(tcx, root, target))]
+#[instrument(level = "debug", skip(tcx, root, target))]
 crate fn mir_callgraph_reachable(
     tcx: TyCtxt<'tcx>,
     (root, target): (ty::Instance<'tcx>, LocalDefId),
@@ -27,7 +27,10 @@ crate fn mir_callgraph_reachable(
         !tcx.is_constructor(root.def_id()),
         "you should not call `mir_callgraph_reachable` on enum/struct constructor functions"
     );
-    #[instrument(skip(tcx, param_env, target, stack, seen, recursion_limiter, caller))]
+    #[instrument(
+        level = "debug",
+        skip(tcx, param_env, target, stack, seen, recursion_limiter, caller)
+    )]
     fn process(
         tcx: TyCtxt<'tcx>,
         param_env: ty::ParamEnv<'tcx>,

compiler/rustc_mir_build/src/thir/pattern/usefulness.rs

@@ -1079,7 +1079,10 @@ impl<'tcx> Witness<'tcx> {
 /// `is_under_guard` is used to inform if the pattern has a guard. If it
 /// has one it must not be inserted into the matrix. This shouldn't be
 /// relied on for soundness.
-#[instrument(skip(cx, matrix, witness_preference, hir_id, is_under_guard, is_top_level))]
+#[instrument(
+    level = "debug",
+    skip(cx, matrix, witness_preference, hir_id, is_under_guard, is_top_level)
+)]
 fn is_useful<'p, 'tcx>(
     cx: &MatchCheckCtxt<'p, 'tcx>,
     matrix: &Matrix<'p, 'tcx>,

compiler/rustc_span/src/hygiene.rs

@@ -1405,8 +1405,8 @@ fn update_disambiguator(expn_id: ExpnId) {
     });
 
     if modified {
-        info!("Set disambiguator for {:?} (hash {:?})", expn_id, first_hash);
-        info!("expn_data = {:?}", expn_id.expn_data());
+        debug!("Set disambiguator for {:?} (hash {:?})", expn_id, first_hash);
+        debug!("expn_data = {:?}", expn_id.expn_data());
 
         // Verify that the new disambiguator makes the hash unique
         #[cfg(debug_assertions)]

compiler/rustc_trait_selection/src/traits/codegen.rs

@@ -91,7 +91,7 @@ pub fn codegen_fulfill_obligation<'tcx>(
         });
         let impl_source = drain_fulfillment_cx_or_panic(&infcx, &mut fulfill_cx, impl_source);
 
-        info!("Cache miss: {:?} => {:?}", trait_ref, impl_source);
+        debug!("Cache miss: {:?} => {:?}", trait_ref, impl_source);
         Ok(impl_source)
     })
 }

compiler/rustc_trait_selection/src/traits/fulfill.rs

@@ -647,7 +647,7 @@ impl<'a, 'b, 'tcx> FulfillProcessor<'a, 'b, 'tcx> {
                 ProcessResult::Unchanged
             }
             Err(selection_err) => {
-                info!("selecting trait at depth {} yielded Err", obligation.recursion_depth);
+                debug!("selecting trait at depth {} yielded Err", obligation.recursion_depth);
 
                 ProcessResult::Error(CodeSelectionError(selection_err))
             }

compiler/rustc_traits/src/dropck_outlives.rs

@@ -80,7 +80,7 @@ fn dropck_outlives<'tcx>(
             let cause = ObligationCause::dummy();
             let mut constraints = DtorckConstraint::empty();
             while let Some((ty, depth)) = ty_stack.pop() {
-                info!(
+                debug!(
                     "{} kinds, {} overflows, {} ty_stack",
                     result.kinds.len(),
                     result.overflows.len(),