Search results

Trait solver re-derives region-independent auto-trait obligations once per root goal (can_use_global_caches bails on region inference vars)

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.

#157595 In rust-lang/rust;

· ashi009 opened on Jun 8, 2026

possibly improve performance of SIMD candidate check in substring search

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

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.

#157593 In rust-lang/rust;

· BurntSushi opened on Jun 8, 2026

ScalarPair product types missing noundef in LLVM return types

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

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.

#157589 In rust-lang/rust;

· scottmcm opened on Jun 8, 2026

Tracking issue for release notes of #157577: Fix parser error recovery treating 'dyn' as a strict keyword in Rust …

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.

Status: Open.

#157579 In rust-lang/rust;

· rustbot opened on Jun 7, 2026

Tracking issue for MCP 950: Add flag to pass MSRV/package.rust-version for use by lints

B-MCP-approvedBlocker: Approved by an accepted MCP but not yet fully implemented.Blocker: Approved by an accepted MCP but not yet fully implemented.

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-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.

#157574 In rust-lang/rust;

· rustbot opened on Jun 7, 2026

[ICE]: Polonius loan_invalidations.rs:86:17: Statement not allowed in this MIR phase

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

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

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-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.

#157568 In rust-lang/rust;

· irevoire opened on Jun 7, 2026

ESP-IDF's esp_fill_random is not always cryptographically secure

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.

O-ESP-IDFTarget: Espressif IoT Development FrameworkTarget: Espressif IoT Development Framework

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.

#157566 In rust-lang/rust;

· joboet opened on Jun 7, 2026

Rust 2015 type dyn + dyn wrongly rejected by the parser due to "helpful" diagnostic

A-dyn-traitArea: trait objects, vtable layoutArea: trait objects, vtable layout

A-edition-2015Area: The 2015 edition (the first edition)Area: The 2015 edition (the first edition)

A-parserArea: The lexing & parsing of Rust source code to an ASTArea: The lexing & parsing of Rust source code to an AST

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

E-easyCall for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.

P-lowLow priorityLow priority

regression-from-stable-to-stablePerformance or correctness regression from one stable version to another.Performance or correctness regression from one stable version to another.

S-has-bisectionStatus: A bisection has been found for this issueStatus: A bisection has been found for this issue

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.

#157565 In rust-lang/rust;

· fmease opened on Jun 7, 2026

std::offload regression - requires lto=fat even though fat-lto is already enabled

A-LTOArea: Link-time optimization (LTO)Area: Link-time optimization (LTO)

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

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

Status: Open.

#157563 In rust-lang/rust;

· ZuseZ4 opened on Jun 7, 2026

Assigning to refutable enum results in invalid fix

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

A-enumArea: Enums (discriminated unions, or more generally ADTs (algebraic data types))Area: Enums (discriminated unions, or more generally ADTs (algebraic data types))

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

D-incorrectDiagnostics: A diagnostic that is giving misleading or incorrect information.Diagnostics: A diagnostic that is giving misleading or incorrect information.

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

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.

#157553 In rust-lang/rust;

· theemathas opened on Jun 7, 2026

std::time::SystemTime link for __wasi_clock_time_get is broken

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

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.

#157551 In rust-lang/rust;

· curiousdannii opened on Jun 7, 2026

Clarify &UnsafeCell<T> → &T access

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

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.

T-opsemRelevant to the opsem teamRelevant to the opsem team

Status: Open.

#157544 In rust-lang/rust;

· kpreid opened on Jun 6, 2026