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Extract TraitImplHeader in AST/HIR

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.

final-comment-periodIn the final comment period and will be merged soon unless new substantive objections are raised.In the final comment period and will be merged soon unless new substantive objections are raised.

I-lang-radarItems that are on lang's radar and will need eventual work or consideration.Items that are on lang's radar and will need eventual work or consideration.

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-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-clippyRelevant to the Clippy team.Relevant to the Clippy team.

T-langRelevant to the language teamRelevant to the language team

Status: Open (in progress).

rust-lang/rustnumber 144386

#144386 In rust-lang/rust;

· camsteffen opened on Jul 24, 2025

Stabilize const TypeId::of

A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)

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.

final-comment-periodIn the final comment period and will be merged soon unless new substantive objections are raised.In the final comment period and will be merged soon unless new substantive objections are raised.

I-lang-radarItems that are on lang's radar and will need eventual work or consideration.Items that are on lang's radar and will need eventual work or consideration.

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 teamRelevant to the language team

Status: Open (in progress).

rust-lang/rustnumber 144133

#144133 In rust-lang/rust;

· oli-obk opened on Jul 18, 2025

Stabilize <code>new_zeroed_alloc</code>

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-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-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open (in progress).

rust-lang/rustnumber 144091

#144091 In rust-lang/rust;

· thaliaarchi opened on Jul 17, 2025

stabilize <code>const_array_each_ref</code>

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-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-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open (in progress).

rust-lang/rustnumber 143383

#143383 In rust-lang/rust;

· fee1-dead opened on Jul 3, 2025

Stabilize <code>rwlock_downgrade</code> library feature

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.

proposed-final-comment-periodProposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.

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-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open (in progress).

rust-lang/rustnumber 143191

#143191 In rust-lang/rust;

· connortsui20 opened on Jun 29, 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 mergingStatus: 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 teamRelevant 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

<code>apply_member_constraints</code>: fix placeholder check

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.

final-comment-periodIn the final comment period and will be merged soon unless new substantive objections are raised.In the final comment period and will be merged soon unless new substantive objections are raised.

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-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types team, which will review and decide on the PR/issue.

Status: Open (in progress).

rust-lang/rustnumber 142071

#142071 In rust-lang/rust;

· lcnr opened on Jun 5, 2025

wf: emit projection goal for aliases

perf-regressionPerformance regression.Performance regression.

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.

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-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types 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: Open (in progress).

rust-lang/rustnumber 140558

#140558 In rust-lang/rust;

· lcnr opened on May 1, 2025

Allow while let chains on all editions

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.

I-lang-radarItems that are on lang's radar and will need eventual work or consideration.Items that are on lang's radar and will need eventual work or consideration.

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.

proposed-final-comment-periodProposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.

S-blockedStatus: Blocked on something else such as an RFC or other implementation work.Status: Blocked on something else such as an RFC or other implementation work.

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.

S-waiting-on-concernsStatus: Awaiting concerns to be addressed by the authorStatus: Awaiting concerns to be addressed by the author

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 teamRelevant to the language team

Status: Open (in progress).

rust-lang/rustnumber 140204

#140204 In rust-lang/rust;

· est31 opened on Apr 23, 2025

Ensure non-empty buffers for large vectored I/O

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.

O-hermitOperating System: HermitOperating System: Hermit

O-unixOperating system: Unix-likeOperating system: Unix-like

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-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-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open (in progress).

rust-lang/rustnumber 138879

#138879 In rust-lang/rust;

· thaliaarchi opened on Mar 24, 2025

unix: Relax escaping in <code>Debug</code> impl on <code>Command</code>

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

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.

O-unixOperating system: Unix-likeOperating system: Unix-like

proposed-final-comment-periodProposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.

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.

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-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: Open (in progress).

rust-lang/rustnumber 132484

#132484 In rust-lang/rust;

· madsmtm opened on Nov 2, 2024

Tracking issue for <code>vec_into_raw_parts</code>

A-collectionsArea: `std::collections`Area: `std::collections`

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

B-unstableBlocker: Implemented in the nightly compiler and unstable.Blocker: Implemented in the nightly compiler and unstable.

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

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.

Libs-TrackedLibs issues that are tracked on the team's project board.Libs issues that are tracked on the team's project board.

proposed-final-comment-periodProposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.

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-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#65816 In rust-lang/rust;

· shepmaster opened on Oct 25, 2019