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Remove unused <code>#[must_use]</code>

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion. Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Merged (completed).

rust-lang/rustnumber 145274

#145274 In rust-lang/rust;

· by compiler-errors was closed on Aug 13, 2025

·

1.91.0

Recover non-list repr attr with a span for later attr validation

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Closed (abandoned).

rust-lang/rustnumber 143533

#143533 In rust-lang/rust;

· by compiler-errors was closed on Jul 6, 2025

Rollup of 18 pull requests

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

A-compiletestArea: The compiletest test runner Area: The compiletest test runner

A-testsuiteArea: The testsuite used to check the correctness of rustc Area: The testsuite used to check the correctness of rustc

merged-by-borsThis PR was explicitly merged by bors. This PR was explicitly merged by bors.

rollupA PR which is a rollup A PR which is a rollup

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion. Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue. Relevant to the infrastructure team, which will review and decide on the PR/issue.

T-libsRelevant to the library team, which will review and decide on the PR/issue. Relevant to the library team, which will review and decide on the PR/issue.

T-releaseRelevant to the release subteam, which will review and decide on the PR/issue. Relevant to the release subteam, which will review and decide on the PR/issue.

T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue. Relevant to the rustdoc team, which will review and decide on the PR/issue.

WG-trait-system-refactorThe Rustc Trait System Refactor Initiative (-Znext-solver) The Rustc Trait System Refactor Initiative (-Znext-solver)

Status: Merged (completed).

rust-lang/rustnumber 143074

#143074 In rust-lang/rust;

· by compiler-errors was closed on Jun 27, 2025

·

1.90.0

Rollup of 19 pull requests

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

A-testsuiteArea: The testsuite used to check the correctness of rustc Area: The testsuite used to check the correctness of rustc

A-tidyArea: The tidy tool Area: The tidy tool

O-windowsOperating system: Windows Operating system: Windows

rollupA PR which is a rollup A PR which is a rollup

S-waiting-on-authorStatus: This is awaiting some action (such as code changes or more information) from the author. Status: This is awaiting some action (such as code changes or more information) from the author.

T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue. Relevant to the infrastructure team, which will review and decide on the PR/issue.

T-libsRelevant to the library team, which will review and decide on the PR/issue. Relevant to the library team, which will review and decide on the PR/issue.

T-releaseRelevant to the release subteam, which will review and decide on the PR/issue. Relevant to the release subteam, which will review and decide on the PR/issue.

T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue. Relevant to the rustdoc team, which will review and decide on the PR/issue.

WG-trait-system-refactorThe Rustc Trait System Refactor Initiative (-Znext-solver) The Rustc Trait System Refactor Initiative (-Znext-solver)

Status: Closed (abandoned).

rust-lang/rustnumber 143061

#143061 In rust-lang/rust;

· by compiler-errors was closed on Jun 26, 2025

Allow <code>#[must_use]</code> on associated types to warn on unused values in generic contexts

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

disposition-mergeThis issue / PR is in PFCP or FCP with a disposition to merge it. This issue / PR is in PFCP or FCP with a disposition to merge it.

finished-final-comment-periodThe final comment period is finished for this PR / Issue. The final comment period is finished for this PR / Issue.

needs-fcpThis change is insta-stable, or significant enough to need a team FCP to proceed. This change is insta-stable, or significant enough to need a team FCP to proceed.

S-waiting-on-documentationStatus: Waiting on approved PRs to documentation before merging Status: Waiting on approved PRs to documentation before merging

S-waiting-on-fcpStatus: PR is in FCP and is awaiting for FCP to complete. Status: PR is in FCP and is awaiting for FCP to complete.

T-langRelevant to the language team Relevant to the language team

WG-trait-system-refactorThe Rustc Trait System Refactor Initiative (-Znext-solver) The Rustc Trait System Refactor Initiative (-Znext-solver)

Status: Open (in progress).

rust-lang/rustnumber 142590

#142590 In rust-lang/rust;

· compiler-errors opened on Jun 16, 2025

Properly stall coroutine witnesses in new solver

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

F-autodiff`#![feature(autodiff)]` `#![feature(autodiff)]`

merged-by-borsThis PR was explicitly merged by bors. This PR was explicitly merged by bors.

perf-regressionPerformance regression. Performance regression.

perf-regression-triagedThe performance regression has been triaged. The performance regression has been triaged.

PG-exploit-mitigationsProject group: Exploit mitigations Project group: Exploit mitigations

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion. Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-rustdoc-frontendRelevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output. Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.

WG-trait-system-refactorThe Rustc Trait System Refactor Initiative (-Znext-solver) The Rustc Trait System Refactor Initiative (-Znext-solver)

Status: Merged (completed).

rust-lang/rustnumber 138845

#138845 In rust-lang/rust;

· by compiler-errors was closed on Apr 24, 2025

·

1.88.0

Rollup of 8 pull requests

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

A-testsuiteArea: The testsuite used to check the correctness of rustc Area: The testsuite used to check the correctness of rustc

A-tidyArea: The tidy tool Area: The tidy tool

rollupA PR which is a rollup A PR which is a rollup

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties. Status: Awaiting review from the assignee but also interested parties.

T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-libsRelevant to the library team, which will review and decide on the PR/issue. Relevant to the library team, which will review and decide on the PR/issue.

Status: Closed (abandoned).

rust-lang/rustnumber 138185

#138185 In rust-lang/rust;

· by compiler-errors was closed on Mar 8, 2025

Rollup of 10 pull requests

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

A-run-makeArea: port run-make Makefiles to rmake.rs Area: port run-make Makefiles to rmake.rs

A-testsuiteArea: The testsuite used to check the correctness of rustc Area: The testsuite used to check the correctness of rustc

A-tidyArea: The tidy tool Area: The tidy tool

rollupA PR which is a rollup A PR which is a rollup

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties. Status: Awaiting review from the assignee but also interested parties.

T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue. Relevant to the infrastructure team, which will review and decide on the PR/issue.

T-libsRelevant to the library team, which will review and decide on the PR/issue. Relevant to the library team, which will review and decide on the PR/issue.

T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue. Relevant to the rustdoc team, which will review and decide on the PR/issue.

T-rustdoc-frontendRelevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output. Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.

Status: Closed (abandoned).

rust-lang/rustnumber 138180

#138180 In rust-lang/rust;

· by compiler-errors was closed on Mar 7, 2025

Rollup of 25 pull requests

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

A-run-makeArea: port run-make Makefiles to rmake.rs Area: port run-make Makefiles to rmake.rs

A-testsuiteArea: The testsuite used to check the correctness of rustc Area: The testsuite used to check the correctness of rustc

merged-by-borsThis PR was explicitly merged by bors. This PR was explicitly merged by bors.

perf-regressionPerformance regression. Performance regression.

rollupA PR which is a rollup A PR which is a rollup

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion. Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue. Relevant to the infrastructure team, which will review and decide on the PR/issue.

T-libsRelevant to the library team, which will review and decide on the PR/issue. Relevant to the library team, which will review and decide on the PR/issue.

T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue. Relevant to the rustdoc team, which will review and decide on the PR/issue.

T-rustdoc-frontendRelevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output. Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.

Status: Merged (completed).

rust-lang/rustnumber 138114

#138114 In rust-lang/rust;

· by compiler-errors was closed on Mar 7, 2025

·

1.87.0

Rollup of 20 pull requests

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

A-run-makeArea: port run-make Makefiles to rmake.rs Area: port run-make Makefiles to rmake.rs

A-testsuiteArea: The testsuite used to check the correctness of rustc Area: The testsuite used to check the correctness of rustc

rollupA PR which is a rollup A PR which is a rollup

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties. Status: Awaiting review from the assignee but also interested parties.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue. Relevant to the infrastructure team, which will review and decide on the PR/issue.

T-libsRelevant to the library team, which will review and decide on the PR/issue. Relevant to the library team, which will review and decide on the PR/issue.

T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue. Relevant to the rustdoc team, which will review and decide on the PR/issue.

T-rustdoc-frontendRelevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output. Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.

Status: Closed (abandoned).

rust-lang/rustnumber 138079

#138079 In rust-lang/rust;

· by compiler-errors was closed on Mar 6, 2025

Improve <code>-Zunpretty=hir</code> for parsed attrs

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

A-rustdoc-jsonArea: Rustdoc JSON backend Area: Rustdoc JSON backend

A-rustdoc-searchArea: Rustdoc's search feature Area: Rustdoc's search feature

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion. Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-rustdoc-frontendRelevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output. Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.

Status: Merged (completed).

rust-lang/rustnumber 138063

#138063 In rust-lang/rust;

· by compiler-errors was closed on Mar 11, 2025

·

1.87.0

Rollup of 10 pull requests

A-attributesArea: Attributes (`#[...]`, `#![...]`) Area: Attributes (`#[...]`, `#![...]`)

A-metaArea: Issues & PRs about the rust-lang/rust repository itself Area: Issues & PRs about the rust-lang/rust repository itself

A-query-systemArea: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html) Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html)

A-testsuiteArea: The testsuite used to check the correctness of rustc Area: The testsuite used to check the correctness of rustc

A-tidyArea: The tidy tool Area: The tidy tool

A-translationArea: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic

PG-exploit-mitigationsProject group: Exploit mitigations Project group: Exploit mitigations

rollupA PR which is a rollup A PR which is a rollup

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties. Status: Awaiting review from the assignee but also interested parties.

T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue. Relevant to the compiler team, which will review and decide on the PR/issue.

T-libsRelevant to the library team, which will review and decide on the PR/issue. Relevant to the library team, which will review and decide on the PR/issue.

WG-trait-system-refactorThe Rustc Trait System Refactor Initiative (-Znext-solver) The Rustc Trait System Refactor Initiative (-Znext-solver)

Status: Closed (abandoned).

rust-lang/rustnumber 137416

#137416 In rust-lang/rust;

· by compiler-errors was closed on Feb 22, 2025