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Rollup of 9 pull requests #87434

Merged
merged 19 commits into from
Jul 24, 2021
Merged

Rollup of 9 pull requests #87434

merged 19 commits into from
Jul 24, 2021

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Manishearth
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Successful merges:

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r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

pkubaj and others added 19 commits July 22, 2021 17:29
The function parameters were renamed, but the documentation wasn't.
There's no need for this to be (untracked) global state.
…stics

Previously, this would change the test output when RUSTUP_HOME was set:

```
---- [ui] ui/issues/issue-49851/compiler-builtins-error.rs stdout ----
diff of stderr:

1       error[E0463]: can't find crate for `core`
2          |
3          = note: the `thumbv7em-none-eabihf` target may not be installed
+          = help: consider downloading the target with `rustup target add thumbv7em-none-eabihf`
4
5       error: aborting due to previous error
6
```

Originally, I fixed it by explicitly unsetting RUSTUP_HOME in
compiletest. Then I realized that almost no one has RUSTUP_HOME set,
since rustup doesn't set it itself; although it does set RUST_RECURSION_COUNT
whenever it launches a proxy. Then it was pointed out that this runtime
check doesn't really make sense and it's fine to make it unconditional.
Fix span when suggesting to add an associated type bound

Fixes rust-lang#87261

Note that this fix is not perfect, it ~~will still give incorrect~~ won't give suggestions in some situations:
- If the associated type is defined on a supertrait of those contained in the opaque type, it will fallback to the previous behaviour, e.g. if `AssocTy` is defined on the trait `Foo`, `Bar` has `Foo` as supertrait and the opaque type is a `impl Bar + Baz`.
- If the the associated type is defined on a generic trait and the opaque type includes two versions of that generic trait, e.g. the opaque type is `impl Foo<A> + Foo<B>`
Remove detection of rustup and cargo in 'missing extern crate' diagnostics

Previously, this would change the test output when RUSTUP_HOME was set:

```
---- [ui] ui/issues/issue-49851/compiler-builtins-error.rs stdout ----
diff of stderr:

1       error[E0463]: can't find crate for `core`
2          |
3          = note: the `thumbv7em-none-eabihf` target may not be installed
+          = help: consider downloading the target with `rustup target add thumbv7em-none-eabihf`
4
5       error: aborting due to previous error
6
```

Originally, I fixed it by explicitly unsetting RUSTUP_HOME in
compiletest. Then I realized that almost no one has RUSTUP_HOME set,
since rustup doesn't set it itself. It does set RUST_RECURSION_COUNT
whenever it launches a proxy, though - use that instead.

r? ```@estebank``` cc ```@petrochenkov``` ```@kinnison```
Add support for powerpc-unknown-freebsd

- A tier 3 target must have a designated developer or developers (the "target maintainers") on record to be CCed when issues arise regarding the target. (The mechanism to track and CC such developers may evolve over time.)
For all Rust targets on FreeBSD, it's rust@FreeBSD.org.

- Targets must use naming consistent with any existing targets; for instance, a target for the same CPU or OS as an existing Rust target should use the same name for that CPU or OS. Targets should normally use the same names and naming conventions as used elsewhere in the broader ecosystem beyond Rust (such as in other toolchains), unless they have a very good reason to diverge. Changing the name of a target can be highly disruptive, especially once the target reaches a higher tier, so getting the name right is important even for a tier 3 target.
Done.

- Target names should not introduce undue confusion or ambiguity unless absolutely necessary to maintain ecosystem compatibility. For example, if the name of the target makes people extremely likely to form incorrect beliefs about what it targets, the name should be changed or augmented to disambiguate it.
Done

- Tier 3 targets may have unusual requirements to build or use, but must not create legal issues or impose onerous legal terms for the Rust project or for Rust developers or users.
Done.

- The target must not introduce license incompatibilities.
Done.

- Anything added to the Rust repository must be under the standard Rust license (MIT OR Apache-2.0).
Fine with me.

- The target must not cause the Rust tools or libraries built for any other host (even when supporting cross-compilation to the target) to depend on any new dependency less permissive than the Rust licensing policy. This applies whether the dependency is a Rust crate that would require adding new license exceptions (as specified by the tidy tool in the rust-lang/rust repository), or whether the dependency is a native library or binary. In other words, the introduction of the target must not cause a user installing or running a version of Rust or the Rust tools to be subject to any new license requirements.
Done.

- If the target supports building host tools (such as rustc or cargo), those host tools must not depend on proprietary (non-FOSS) libraries, other than ordinary runtime libraries supplied by the platform and commonly used by other binaries built for the target. For instance, rustc built for the target may depend on a common proprietary C runtime library or console output library, but must not depend on a proprietary code generation library or code optimization library. Rust's license permits such combinations, but the Rust project has no interest in maintaining such combinations within the scope of Rust itself, even at tier 3.
Done.

- Targets should not require proprietary (non-FOSS) components to link a functional binary or library.
Done.

- "onerous" here is an intentionally subjective term. At a minimum, "onerous" legal/licensing terms include but are not limited to: non-disclosure requirements, non-compete requirements, contributor license agreements (CLAs) or equivalent, "non-commercial"/"research-only"/etc terms, requirements conditional on the employer or employment of any particular Rust developers, revocable terms, any requirements that create liability for the Rust project or its developers or users, or any requirements that adversely affect the livelihood or prospects of the Rust project or its developers or users.
Fine with me.

- Neither this policy nor any decisions made regarding targets shall create any binding agreement or estoppel by any party. If any member of an approving Rust team serves as one of the maintainers of a target, or has any legal or employment requirement (explicit or implicit) that might affect their decisions regarding a target, they must recuse themselves from any approval decisions regarding the target's tier status, though they may otherwise participate in discussions.
Ok.

- This requirement does not prevent part or all of this policy from being cited in an explicit contract or work agreement (e.g. to implement or maintain support for a target). This requirement exists to ensure that a developer or team responsible for reviewing and approving a target does not face any legal threats or obligations that would prevent them from freely exercising their judgment in such approval, even if such judgment involves subjective matters or goes beyond the letter of these requirements.
Ok.

- Tier 3 targets should attempt to implement as much of the standard libraries as possible and appropriate (core for most targets, alloc for targets that can support dynamic memory allocation, std for targets with an operating system or equivalent layer of system-provided functionality), but may leave some code unimplemented (either unavailable or stubbed out as appropriate), whether because the target makes it impossible to implement or challenging to implement. The authors of pull requests are not obligated to avoid calling any portions of the standard library on the basis of a tier 3 target not implementing those portions.
std is implemented.

- The target must provide documentation for the Rust community explaining how to build for the target, using cross-compilation if possible. If the target supports running tests (even if they do not pass), the documentation must explain how to run tests for the target, using emulation if possible or dedicated hardware if necessary.
Hm, building is possible the same way as other Rust on FreeBSD targets.

- Tier 3 targets must not impose burden on the authors of pull requests, or other developers in the community, to maintain the target. In particular, do not post comments (automated or manual) on a PR that derail or suggest a block on the PR based on a tier 3 target. Do not send automated messages or notifications (via any medium, including via `@)` to a PR author or others involved with a PR regarding a tier 3 target, unless they have opted into such messages.
Ok.

- Backlinks such as those generated by the issue/PR tracker when linking to an issue or PR are not considered a violation of this policy, within reason. However, such messages (even on a separate repository) must not generate notifications to anyone involved with a PR who has not requested such notifications.
Ok.

- Patches adding or updating tier 3 targets must not break any existing tier 2 or tier 1 target, and must not knowingly break another tier 3 target without approval of either the compiler team or the maintainers of the other tier 3 target.
Ok.

- In particular, this may come up when working on closely related targets, such as variations of the same architecture with different features. Avoid introducing unconditional uses of features that another variation of the target may not have; use conditional compilation or runtime detection, as appropriate, to let each target run code supported by that target.
Ok.
…leywiser

Rename `known_attrs` to `expanded_inert_attrs` and move to rustc_expand

There's no need for this to be (untracked) global state.
Clear up std::env::set_var panic section.

The "K" parameter was being referred to as "key", which wasn't
introduced anywhere.
…on, r=oli-obk

Implement `AssignToDroppingUnionField` in THIR unsafeck

r? ``@oli-obk`` cc rust-lang/project-thir-unsafeck#7
…rgs_nl, r=nagisa

Mark `format_args_nl` as `#[doc(hidden)]`

It's described as being internal-only and has no tracking issue, so hide it from public docs.
IEEE 754 is not an RFC

If there were something between `IEEE` and `754`, it would be `STD`: [`IEEE STD 754-2019`](https://doi.org/10.1109%2FIEEESTD.2019.8766229)
… r=LeSeulArtichaut

DOC: remove unnecessary feature crate attribute from example code

I'm not sure whether I fully understand the stabilization process (I most likely don't), but I think this attribute isn't necessary here, right?

This was recently stabilized in rust-lang#86344.
@rustbot rustbot added the rollup A PR which is a rollup label Jul 24, 2021
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@bors r+ p=1 rollup=never

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bors commented Jul 24, 2021

📌 Commit acfa3ac has been approved by Manishearth

@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jul 24, 2021
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bors commented Jul 24, 2021

⌛ Testing commit acfa3ac with merge bddb59c...

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bors commented Jul 24, 2021

☀️ Test successful - checks-actions
Approved by: Manishearth
Pushing bddb59c to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Jul 24, 2021
@bors bors merged commit bddb59c into rust-lang:master Jul 24, 2021
@rustbot rustbot added this to the 1.56.0 milestone Jul 24, 2021
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