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Function arguments in nontrivial pattern can be reassigned with a different lifetime.

A-borrow-checkerArea: The borrow checkerArea: The borrow checker

A-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regions

A-patternsRelating to patterns and pattern matchingRelating to patterns and pattern matching

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.

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.

#148463 In rust-lang/rust;

· theemathas opened on Nov 4, 2025

Bad codegen with inlined functions returning <code>Result</code> with a niche.

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.

#148461 In rust-lang/rust;

· ruriww opened on Nov 4, 2025

rustc (beta) compilation problem when using tarball

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.

#148455 In rust-lang/rust;

· semarie opened on Nov 3, 2025

Mis-use of -isystem in rust 1.91.0's LLVM with siphash header?

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.

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.

#148450 In rust-lang/rust;

· he32 opened on Nov 3, 2025

<code>compare-output-by-lines</code> diff of stdout from <code>//@ check-run-results</code> is unclear

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

A-compiletest-compare-modesArea: compiletest compare-modesArea: compiletest compare-modes

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.

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.

#148442 In rust-lang/rust;

· WaffleLapkin opened on Nov 3, 2025

<code>const_evaluatable_unchecked</code> incorrectly triggers when capturing return type of parent const block

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.

#148433 In rust-lang/rust;

· lcnr opened on Nov 3, 2025

<code>std::env::{set_var, remove_var}</code> is called in tests without safety documentation

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

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.

#148432 In rust-lang/rust;

· tbu- opened on Nov 3, 2025

Tracking issue for release notes of #146978: Emit error when using path-segment keyword as cfg pred

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

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.

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.

relnotes-tracking-issueMarks issues tracking what text to put in release notes.Marks issues tracking what text to put in release notes.

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-langRelevant to the language teamRelevant to the language team

Status: Open.

#148419 In rust-lang/rust;

· rustbot opened on Nov 3, 2025

Regression (?) in unused_assignments lint when Drop is implemented

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.

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.

regression-from-stable-to-betaPerformance or correctness regression from stable to beta.Performance or correctness regression from stable to beta.

Status: Open.

#148418 In rust-lang/rust;

· iliakonnov opened on Nov 2, 2025

Incorrect error message when <code>decl_macro</code> macro referes to <code>macro_rules!</code> macro

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.

#148414 In rust-lang/rust;

· max-kamps opened on Nov 2, 2025

RPIT can't capture LUB of two lifetimes

A-impl-traitArea: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch.Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch.

A-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regions

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.

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.

#148401 In rust-lang/rust;

· theemathas opened on Nov 2, 2025

<code>derive(CoercePointee)</code> accepts <code>?Sized + Sized</code>

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

F-derive_coerce_pointeeFeature: RFC 3621's oft-renamed implementationFeature: RFC 3621's oft-renamed implementation

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.

#148399 In rust-lang/rust;

· theemathas opened on Nov 2, 2025