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merged 1 commit into from
May 17, 2025
Merged

Add #[must_use] to Array::map #140957

merged 1 commit into from
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JulianKnodt
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The output of Array::map is intended to be an array of the same size, and does not modify the original in place nor is it intended for side-effects. Thus, under normal circumstances it should be consumed.

See discussion.

Attaching to tracking issue #75243

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r? @Mark-Simulacrum

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@JulianKnodt
Add #[must_use] to Array::map
ab1c49a 
The output of Array::map is intended to be an array of the same size, and does not modify the
original in place nor is it intended for side-effects. Thus, under normal circumstances it should be consumed.

See [discussion](https://internals.rust-lang.org/t/array-map-annotate-with-must-use/22813/26).

Attaching to tracking issue rust-lang#75243
@Mark-Simulacrum Mark-Simulacrum added the relnotes Marks issues that should be documented in the release notes of the next release. label May 16, 2025
@rustbot rustbot mentioned this pull request May 16, 2025
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This seems reasonable.

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bors commented May 16, 2025

📌 Commit ab1c49a has been approved by Mark-Simulacrum

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 16, 2025
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@bors rollup

@matthiaskrgr matthiaskrgr mentioned this pull request May 17, 2025
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bors added a commit to rust-lang-ci/rust that referenced this pull request May 17, 2025
@bors
Auto merge of rust-lang#141113 - matthiaskrgr:rollup-k7izuh8, r=matth…
a43b8d1 
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#140208 (Make well-formedness predicates no longer coinductive)
 - rust-lang#140957 (Add `#[must_use]` to Array::map)
 - rust-lang#141031 (Async drop fix for dropee from another crate (rust-lang#140858))
 - rust-lang#141036 (ci: split the dist-ohos job)
 - rust-lang#141051 (Remove some unnecessary erases)
 - rust-lang#141056 (Lowercase git url for rust-lang/enzyme.git)
 - rust-lang#141059 (HIR: explain in comment why `ExprKind::If` "then" is an `Expr`)
 - rust-lang#141070 (Do not emit help when shorthand from macro when suggest `?` or `expect`)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 642cd65 into rust-lang:master May 17, 2025
6 checks passed
@rustbot rustbot added this to the 1.89.0 milestone May 17, 2025
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request May 17, 2025
@rust-timer
Unrolled build for rust-lang#140957
abba163 
Rollup merge of rust-lang#140957 - JulianKnodt:array_must_use, r=Mark-Simulacrum

Add `#[must_use]` to Array::map

The output of Array::map is intended to be an array of the same size, and does not modify the original in place nor is it intended for side-effects. Thus, under normal circumstances it should be consumed.

See [discussion](https://internals.rust-lang.org/t/array-map-annotate-with-must-use/22813/26).

Attaching to tracking issue rust-lang#75243
@JulianKnodt JulianKnodt deleted the array_must_use branch May 18, 2025 00:11
github-actions bot pushed a commit to model-checking/verify-rust-std that referenced this pull request May 21, 2025
@matthiaskrgr
Rollup merge of rust-lang#140957 - JulianKnodt:array_must_use, r=Mark…
68c4627 
…-Simulacrum

Add `#[must_use]` to Array::map

The output of Array::map is intended to be an array of the same size, and does not modify the original in place nor is it intended for side-effects. Thus, under normal circumstances it should be consumed.

See [discussion](https://internals.rust-lang.org/t/array-map-annotate-with-must-use/22813/26).

Attaching to tracking issue rust-lang#75243
@cuviper cuviper mentioned this pull request Jul 17, 2025
Closed
wip-sync pushed a commit to NetBSD/pkgsrc-wip that referenced this pull request Aug 11, 2025
@he32
rust189: add a package for rust 1.89.0.
eca91be 
Pkgsrc changes:
 * Adjust patches to adapt to upstream changes and new versions.
 * assosicated checksums

Upstream changes relative to 1.88.0:

Version 1.89.0 (2025-08-07)
==========================

Language
--------
- [Stabilize explicitly inferred const arguments (`feature(generic_arg_infer)`)]
  (rust-lang/rust#141610)
- [Add a warn-by-default `mismatched_lifetime_syntaxes` lint.]
  (rust-lang/rust#138677)
  This lint detects when the same lifetime is referred to by
  different syntax categories between function arguments and return
  values, which can be confusing to read, especially in unsafe
  code.  This lint supersedes the warn-by-default `elided_named_lifetimes`
  lint.
- [Expand `unpredictable_function_pointer_comparisons` to also lint
  on function pointer comparisons in external macros]
  (rust-lang/rust#134536)
- [Make the `dangerous_implicit_autorefs` lint deny-by-default]
  (rust-lang/rust#141661)
- [Stabilize the avx512 target features]
  (rust-lang/rust#138940)
- [Stabilize `kl` and `widekl` target features for x86]
  (rust-lang/rust#140766)
- [Stabilize `sha512`, `sm3` and `sm4` target features for x86]
  (rust-lang/rust#140767)
- [Stabilize LoongArch target features `f`, `d`, `frecipe`, `lasx`,
  `lbt`, `lsx`, and `lvz`]
  (rust-lang/rust#135015)
- [Remove `i128` and `u128` from `improper_ctypes_definitions`]
  (rust-lang/rust#137306)
- [Stabilize `repr128` (`#[repr(u128)]`, `#[repr(i128)]`)]
  (rust-lang/rust#138285)
- [Allow `#![doc(test(attr(..)))]` everywhere]
  (rust-lang/rust#140560)
- [Extend temporary lifetime extension to also go through tuple
  struct and tuple variant constructors]
  (rust-lang/rust#140593)

Compiler
--------
- [Default to non-leaf frame pointers on aarch64-linux]
  (rust-lang/rust#140832)
- [Enable non-leaf frame pointers for Arm64EC Windows]
  (rust-lang/rust#140862)
- [Set Apple frame pointers by architecture]
  (rust-lang/rust#141797)

Platform Support
----------------
- [Add new Tier-3 targets `loongarch32-unknown-none` and
  `loongarch32-unknown-none-softfloat`]
  (rust-lang/rust#142053)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]: https://doc.rust-lang.org/rustc/platform-support.html

Libraries
---------
- [Specify the base path for `file!`]
  (rust-lang/rust#134442)
- [Allow storing `format_args!()` in a variable]
  (rust-lang/rust#140748)
- [Add `#[must_use]` to `[T; N]::map`]
  (rust-lang/rust#140957)
- [Implement `DerefMut` for `Lazy{Cell,Lock}`]
  (rust-lang/rust#129334)
- [Implement `Default` for `array::IntoIter`]
  (rust-lang/rust#141574)
- [Implement `Clone` for `slice::ChunkBy`]
  (rust-lang/rust#138016)
- [Implement `io::Seek` for `io::Take`]
  (rust-lang/rust#138023)

Stabilized APIs
---------------

- [`NonZero<char>`]
  (https://doc.rust-lang.org/stable/std/num/struct.NonZero.html)
- Many intrinsics for x86, not enumerated here
  - [AVX512 intrinsics](rust-lang/rust#111137)
  - [`SHA512`, `SM3` and `SM4` intrinsics]
    (rust-lang/rust#126624)
- [`File::lock`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.lock)
- [`File::lock_shared`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.lock_shared)
- [`File::try_lock`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_lock)
- [`File::try_lock_shared`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_lock_shared)
- [`File::unlock`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.unlock)
- [`NonNull::from_ref`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.from_ref)
- [`NonNull::from_mut`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.from_mut)
- [`NonNull::without_provenance`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.without_provenance)
- [`NonNull::with_exposed_provenance`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.with_exposed_provenance)
- [`NonNull::expose_provenance`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.expose_provenance)
- [`OsString::leak`]
  (https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.leak)
- [`PathBuf::leak`]
  (https://doc.rust-lang.org/stable/std/path/struct.PathBuf.html#method.leak)
- [`Result::flatten`]
  (https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.flatten)
- [`std::os::linux::net::TcpStreamExt::quickack`]
  (https://doc.rust-lang.org/stable/std/os/linux/net/trait.TcpStreamExt.html#tymethod.quickack)
- [`std::os::linux::net::TcpStreamExt::set_quickack`]
  (https://doc.rust-lang.org/stable/std/os/linux/net/trait.TcpStreamExt.html#tymethod.set_quickack)

These previously stable APIs are now stable in const contexts:

- [`<[T; N]>::as_mut_slice`]
  (https://doc.rust-lang.org/stable/std/primitive.array.html#method.as_mut_slice)
- [`<[u8]>::eq_ignore_ascii_case`]
  (https://doc.rust-lang.org/stable/std/primitive.slice.html#impl-%5Bu8%5D/method.eq_ignore_ascii_case)
- [`str::eq_ignore_ascii_case`]
  (https://doc.rust-lang.org/stable/std/primitive.str.html#impl-str/method.eq_ignore_ascii_case)

Cargo
-----
- [`cargo fix` and `cargo clippy --fix` now default to the same
  Cargo target selection as other build commands.]
  (rust-lang/cargo#15192) Previously it
  would apply to all targets (like binaries, examples, tests, etc.).
  The `--edition` flag still applies to all targets.

- [Stabilize doctest-xcompile.]
  (rust-lang/cargo#15462) Doctests are
  now tested when cross-compiling. Just like other tests, it will
  use the [`runner` setting]
  (https://doc.rust-lang.org/cargo/reference/config.html#targettriplerunner)
  to run the tests. If you need to disable tests for a target, you
  can use the [ignore doctest attribute]
  (https://doc.rust-lang.org/rustdoc/write-documentation/documentation-tests.html#ignoring-targets)
  to specify the targets to ignore.

Rustdoc
-----
- [On mobile, make the sidebar full width and linewrap]
  (rust-lang/rust#139831). This makes long
  section and item names much easier to deal with on mobile.

Compatibility Notes
-------------------
- [Make `missing_fragment_specifier` an unconditional error]
  (rust-lang/rust#128425)
- [Enabling the `neon` target feature on `aarch64-unknown-none-softfloat`
  causes a warning]
  (rust-lang/rust#135160) because mixing
  code with and without that target feature is not properly supported
  by LLVM
- [Sized Hierarchy: Part I](rust-lang/rust#137944)
  - Introduces a small breaking change affecting `?Sized` bounds
    on impls on recursive types which contain associated type
    projections. It is not expected to affect any existing published
    crates. Can be fixed by refactoring the involved types or opting
    into the `sized_hierarchy` unstable feature. See the [FCP report]
    (rust-lang/rust#137944 (comment))
    for a code example.
- The warn-by-default `elided_named_lifetimes` lint is [superseded
  by the warn-by-default `mismatched_lifetime_syntaxes` lint.]
  (rust-lang/rust#138677)
- [Error on recursive opaque types earlier in the type checker]
  (rust-lang/rust#139419)
- [Type inference side effects from requiring element types of
  array repeat expressions are `Copy` are now only available at the
  end of type checking]
  (rust-lang/rust#139635)

- [The deprecated accidentally-stable
  `std::intrinsics::{copy,copy_nonoverlapping,write_bytes}` are now
  proper intrinsics]
  (rust-lang/rust#139916). There are no
  debug assertions guarding against UB, and they cannot be coerced
  to function pointers.
- [Remove long-deprecated `std::intrinsics::drop_in_place`]
  (rust-lang/rust#140151)
- [Make well-formedness predicates no longer coinductive]
  (rust-lang/rust#140208)
- [Remove hack when checking impl method compatibility]
  (rust-lang/rust#140557)
- [Remove unnecessary type inference due to built-in trait object impls]
  (rust-lang/rust#141352)
- [Lint against "stdcall", "fastcall", and "cdecl" on non-x86-32 targets]
  (rust-lang/rust#141435)
- [Future incompatibility warnings relating to the never type (`!`)
  are now reported in dependencies]
  (rust-lang/rust#141937)
- [Ensure `std::ptr::copy_*` intrinsics also perform the static
  self-init checks]
  (rust-lang/rust#142575)

Internal Changes
----------------

These changes do not affect any public interfaces of Rust, but they represent
significant improvements to the performance or internals of rustc and related
tools.

- [Correctly un-remap compiler sources paths with the `rustc-dev` component]
  (rust-lang/rust#142377)
tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request Aug 12, 2025
@tmeijn
build(deps): update rust to v1.89.0
2fd0fb1 
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [rust](https://github.com/rust-lang/rust) | minor | `1.88.0` -> `1.89.0` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>rust-lang/rust (rust)</summary>

### [`v1.89.0`](https://github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1890-2025-08-07)

[Compare Source](rust-lang/rust@1.88.0...1.89.0)

\==========================

<a id="1.89.0-Language"></a>

## Language

- [Stabilize explicitly inferred const arguments (`feature(generic_arg_infer)`)](rust-lang/rust#141610)
- [Add a warn-by-default `mismatched_lifetime_syntaxes` lint.](rust-lang/rust#138677)
  This lint detects when the same lifetime is referred to by different syntax categories between function arguments and return values, which can be confusing to read, especially in unsafe code.
  This lint supersedes the warn-by-default `elided_named_lifetimes` lint.
- [Expand `unpredictable_function_pointer_comparisons` to also lint on function pointer comparisons in external macros](rust-lang/rust#134536)
- [Make the `dangerous_implicit_autorefs` lint deny-by-default](rust-lang/rust#141661)
- [Stabilize the avx512 target features](rust-lang/rust#138940)
- [Stabilize `kl` and `widekl` target features for x86](rust-lang/rust#140766)
- [Stabilize `sha512`, `sm3` and `sm4` target features for x86](rust-lang/rust#140767)
- [Stabilize LoongArch target features `f`, `d`, `frecipe`, `lasx`, `lbt`, `lsx`, and `lvz`](rust-lang/rust#135015)
- [Remove `i128` and `u128` from `improper_ctypes_definitions`](rust-lang/rust#137306)
- [Stabilize `repr128` (`#[repr(u128)]`, `#[repr(i128)]`)](rust-lang/rust#138285)
- [Allow `#![doc(test(attr(..)))]` everywhere](rust-lang/rust#140560)
- [Extend temporary lifetime extension to also go through tuple struct and tuple variant constructors](rust-lang/rust#140593)
- [`extern "C"` functions on the `wasm32-unknown-unknown` target now have a standards compliant ABI](https://blog.rust-lang.org/2025/04/04/c-abi-changes-for-wasm32-unknown-unknown/)

<a id="1.89.0-Compiler"></a>

## Compiler

- [Default to non-leaf frame pointers on aarch64-linux](rust-lang/rust#140832)
- [Enable non-leaf frame pointers for Arm64EC Windows](rust-lang/rust#140862)
- [Set Apple frame pointers by architecture](rust-lang/rust#141797)

<a id="1.89.0-Platform-Support"></a>

## Platform Support

- [Add new Tier-3 targets `loongarch32-unknown-none` and `loongarch32-unknown-none-softfloat`](rust-lang/rust#142053)
- [`x86_64-apple-darwin` is in the process of being demoted to Tier 2 with host tools](rust-lang/rfcs#3841)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]: https://doc.rust-lang.org/rustc/platform-support.html

<a id="1.89.0-Libraries"></a>

## Libraries

- [Specify the base path for `file!`](rust-lang/rust#134442)
- [Allow storing `format_args!()` in a variable](rust-lang/rust#140748)
- [Add `#[must_use]` to `[T; N]::map`](rust-lang/rust#140957)
- [Implement `DerefMut` for `Lazy{Cell,Lock}`](rust-lang/rust#129334)
- [Implement `Default` for `array::IntoIter`](rust-lang/rust#141574)
- [Implement `Clone` for `slice::ChunkBy`](rust-lang/rust#138016)
- [Implement `io::Seek` for `io::Take`](rust-lang/rust#138023)

<a id="1.89.0-Stabilized-APIs"></a>

## Stabilized APIs

- [`NonZero<char>`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html)
- Many intrinsics for x86, not enumerated here
  - [AVX512 intrinsics](rust-lang/rust#111137)
  - [`SHA512`, `SM3` and `SM4` intrinsics](rust-lang/rust#126624)
- [`File::lock`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.lock)
- [`File::lock_shared`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.lock_shared)
- [`File::try_lock`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_lock)
- [`File::try_lock_shared`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_lock_shared)
- [`File::unlock`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.unlock)
- [`NonNull::from_ref`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.from_ref)
- [`NonNull::from_mut`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.from_mut)
- [`NonNull::without_provenance`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.without_provenance)
- [`NonNull::with_exposed_provenance`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.with_exposed_provenance)
- [`NonNull::expose_provenance`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.expose_provenance)
- [`OsString::leak`](https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.leak)
- [`PathBuf::leak`](https://doc.rust-lang.org/stable/std/path/struct.PathBuf.html#method.leak)
- [`Result::flatten`](https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.flatten)
- [`std::os::linux::net::TcpStreamExt::quickack`](https://doc.rust-lang.org/stable/std/os/linux/net/trait.TcpStreamExt.html#tymethod.quickack)
- [`std::os::linux::net::TcpStreamExt::set_quickack`](https://doc.rust-lang.org/stable/std/os/linux/net/trait.TcpStreamExt.html#tymethod.set_quickack)

These previously stable APIs are now stable in const contexts:

- [`<[T; N]>::as_mut_slice`](https://doc.rust-lang.org/stable/std/primitive.array.html#method.as_mut_slice)
- [`<[u8]>::eq_ignore_ascii_case`](https://doc.rust-lang.org/stable/std/primitive.slice.html#impl-%5Bu8%5D/method.eq_ignore_ascii_case)
- [`str::eq_ignore_ascii_case`](https://doc.rust-lang.org/stable/std/primitive.str.html#impl-str/method.eq_ignore_ascii_case)

<a id="1.89.0-Cargo"></a>

## Cargo

- [`cargo fix` and `cargo clippy --fix` now default to the same Cargo target selection as other build commands.](rust-lang/cargo#15192) Previously it would apply to all targets (like binaries, examples, tests, etc.). The `--edition` flag still applies to all targets.
- [Stabilize doctest-xcompile.](rust-lang/cargo#15462) Doctests are now tested when cross-compiling. Just like other tests, it will use the [`runner` setting](https://doc.rust-lang.org/cargo/reference/config.html#targettriplerunner) to run the tests. If you need to disable tests for a target, you can use the [ignore doctest attribute](https://doc.rust-lang.org/rustdoc/write-documentation/documentation-tests.html#ignoring-targets) to specify the targets to ignore.

<a id="1.89.0-Rustdoc"></a>

## Rustdoc

- [On mobile, make the sidebar full width and linewrap](rust-lang/rust#139831). This makes long section and item names much easier to deal with on mobile.

<a id="1.89.0-Compatibility-Notes"></a>

## Compatibility Notes

- [Make `missing_fragment_specifier` an unconditional error](rust-lang/rust#128425)
- [Enabling the `neon` target feature on `aarch64-unknown-none-softfloat` causes a warning](rust-lang/rust#135160) because mixing code with and without that target feature is not properly supported by LLVM
- [Sized Hierarchy: Part I](rust-lang/rust#137944)
  - Introduces a small breaking change affecting `?Sized` bounds on impls on recursive types which contain associated type projections. It is not expected to affect any existing published crates. Can be fixed by refactoring the involved types or opting into the `sized_hierarchy` unstable feature. See the [FCP report](rust-lang/rust#137944 (comment)) for a code example.
- The warn-by-default `elided_named_lifetimes` lint is [superseded by the warn-by-default `mismatched_lifetime_syntaxes` lint.](rust-lang/rust#138677)
- [Error on recursive opaque types earlier in the type checker](rust-lang/rust#139419)
- [Type inference side effects from requiring element types of array repeat expressions are `Copy` are now only available at the end of type checking](rust-lang/rust#139635)
- [The deprecated accidentally-stable `std::intrinsics::{copy,copy_nonoverlapping,write_bytes}` are now proper intrinsics](rust-lang/rust#139916). There are no debug assertions guarding against UB, and they cannot be coerced to function pointers.
- [Remove long-deprecated `std::intrinsics::drop_in_place`](rust-lang/rust#140151)
- [Make well-formedness predicates no longer coinductive](rust-lang/rust#140208)
- [Remove hack when checking impl method compatibility](rust-lang/rust#140557)
- [Remove unnecessary type inference due to built-in trait object impls](rust-lang/rust#141352)
- [Lint against "stdcall", "fastcall", and "cdecl" on non-x86-32 targets](rust-lang/rust#141435)
- [Future incompatibility warnings relating to the never type (`!`) are now reported in dependencies](rust-lang/rust#141937)
- [Ensure `std::ptr::copy_*` intrinsics also perform the static self-init checks](rust-lang/rust#142575)
- [`extern "C"` functions on the `wasm32-unknown-unknown` target now have a standards compliant ABI](https://blog.rust-lang.org/2025/04/04/c-abi-changes-for-wasm32-unknown-unknown/)

<a id="1.89.0-Internal-Changes"></a>

## Internal Changes

These changes do not affect any public interfaces of Rust, but they represent
significant improvements to the performance or internals of rustc and related
tools.

- [Correctly un-remap compiler sources paths with the `rustc-dev` component](rust-lang/rust#142377)

</details>

---

### Configuration

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relnotes Marks issues that should be documented in the release notes of the next release. S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-libs Relevant to the library team, which will review and decide on the PR/issue.
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@JulianKnodt @rustbot @rust-log-analyzer @Mark-Simulacrum @bors @scottmcm