Search results

Don't normalize higher-ranked assumptions if they're not used

A-async-awaitArea: Async & AwaitArea: Async & Await

A-higher-rankedArea: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs)Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs)

beta-acceptedAccepted for backporting to the compiler in the beta channel.Accepted for backporting to the compiler in the beta channel.

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

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-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: Merged (completed).

rust-lang/rustnumber 147299

#147299 In rust-lang/rust;

· by compiler-errors was closed on Oct 4, 2025

· 

1.91.0

Dont bail in error predicate unless self ty is error in new solver

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-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.

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 146602

#146602 In rust-lang/rust;

· compiler-errors opened on Sep 15, 2025

Use unnamed lifetime spans as primary spans for <code>MISMATCHED_LIFETIME_SYNTAXES</code>

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

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 145798

#145798 In rust-lang/rust;

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

· 

1.91.0

Instantiate higher-ranked binder with erased when checking <code>IntoIterator</code> predicate for query instability

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 145672

#145672 In rust-lang/rust;

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

· 

1.91.0

Unconditionally-const supertraits are considered not dyn compatible

PG-const-traitsProject group: Const traitsProject group: Const traits

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 145627

#145627 In rust-lang/rust;

· by compiler-errors was closed on Aug 21, 2025

· 

1.91.0

Pretty print the name of an future from calling async closure

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 145623

#145623 In rust-lang/rust;

· by compiler-errors was closed on Aug 20, 2025

· 

1.91.0

Account for impossible bounds making seemingly unsatisfyable dyn-to-dyn casts

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 145620

#145620 In rust-lang/rust;

· by compiler-errors was closed on Aug 25, 2025

· 

1.91.0

Reject static async closures in AST lowering

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-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: Open (in progress).

rust-lang/rustnumber 145605

#145605 In rust-lang/rust;

· compiler-errors opened on Aug 19, 2025

Gate static closures behind a parser feature

relnotesMarks issues that should be documented in the release notes of the next release.Marks issues that should be documented in the release notes of the next release.

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 145604

#145604 In rust-lang/rust;

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

· 

1.91.0

More <code>iter().last()</code> -&gt; <code>last()</code>, <code>iter().next()</code> -&gt; <code>first()</code>

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

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 145402

#145402 In rust-lang/rust;

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

[BETA] Revert "Use DeepRejectCtxt in assemble_inherent_candidates_from_param"

beta-acceptedAccepted for backporting to the compiler in the beta channel.Accepted for backporting to the compiler in the beta channel.

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.

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

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.

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 145396

#145396 In rust-lang/rust;

· by compiler-errors was closed on Aug 17, 2025

· 

1.90.0

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