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Try to make FieldDef smaller

I-compiletimeIssue: Problems and improvements with respect to compile times.Issue: Problems and improvements with respect to compile times.

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

Status: Open.

#157003 In rust-lang/rust;

· panstromek opened on May 27, 2026

actual "crate root" file not identified in diagnostics

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

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.

#157001 In rust-lang/rust;

· workingjubilee opened on May 27, 2026

Tracking Issue for casefold

A-UnicodeArea: UnicodeArea: Unicode

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

S-tracking-unimplementedStatus: The feature has not been implemented.Status: The feature has not been implemented.

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.

#157000 In rust-lang/rust;

· Jules-Bertholet opened on May 27, 2026

Associated Type Not Resolved Inside Trait Bound

C-bugCategory: This is a bug.Category: This is a bug.

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

Status: Open.

#156998 In rust-lang/rust;

· p0lyw0lf opened on May 27, 2026

Missed optimization: Redundant move instruction in .count() loop termination

C-bugCategory: This is a bug.Category: This is a bug.

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

Status: Open.

#156996 In rust-lang/rust;

· JL-Money opened on May 26, 2026

Crater triage for 1.97

C-craterCategory: Issue / PR for tracking crater runsCategory: Issue / PR for tracking crater runs

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

S-waiting-on-craterStatus: Waiting on a crater run to be completed.Status: Waiting on a crater run to be completed.

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.

Status: Open.

#156994 In rust-lang/rust;

· cuviper opened on May 26, 2026

·  

1.97.0

Handling release notes for language guarantees made in the Reference

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

I-lang-docs-nominatedNominated for discussion during a lang-docs team meeting.Nominated for discussion during a lang-docs team meeting.

T-langRelevant to the language teamRelevant to the language team

T-lang-docsRelevant to the lang-docs team.Relevant to the lang-docs team.

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.

Status: Open.

#156990 In rust-lang/rust;

· traviscross opened on May 26, 2026

Tracking Issue for read_le_be

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

S-tracking-unimplementedStatus: The feature has not been implemented.Status: The feature has not been implemented.

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.

#156984 In rust-lang/rust;

· joshtriplett opened on May 26, 2026

Nighly no longer builds offline, fails in Vendoring sources to...

A-bootstrap-vendoring

C-bugCategory: This is a bug.Category: This is a bug.

I-prioritizeIssue: Indicates that prioritization has been requested for this issue.Issue: Indicates that prioritization has been requested for this issue.

regression-from-stable-to-nightlyPerformance or correctness regression from stable to nightly.Performance or correctness regression from stable to nightly.

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)

Status: Open.

#156982 In rust-lang/rust;

· AMDmi3 opened on May 26, 2026

Stale RUSTC_LOG with incremental compilation.

A-incr-compArea: Incremental compilationArea: Incremental compilation

C-bugCategory: This is a bug.Category: This is a bug.

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

Status: Open.

#156981 In rust-lang/rust;

· ChayimFriedman2 opened on May 26, 2026

normalizing impl headers before proving constraining projection where-clauses causes unnecessary errors due to param_env preference

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

Status: Open.

#156966 In rust-lang/rust;

· lcnr opened on May 26, 2026

Tracking Issue for global_asm! in statement positions

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

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#156965 In rust-lang/rust;

· daxpedda opened on May 26, 2026