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Some Linux targets build failed prompt '--- stderr error: unknown unstable option: linker-features'

A-CLIArea: Command-line interface (CLI) to the compilerArea: Command-line interface (CLI) to the compiler

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

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

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.

#143765 In rust-lang/rust;

· Wyvern opened on Jul 11, 2025

4 comments

Stylistic warnings (as errors) in the compiler break the build

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

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

L-unused_parensLint: unused_parensLint: unused_parens

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.

#143701 In rust-lang/rust;

· heaths opened on Jul 9, 2025

5 comments

Is mutex poisoning guaranteed to always work properly?

A-concurrencyArea: ConcurrencyArea: Concurrency

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

I-libs-api-nominatedNominated for discussion during a libs-api team meeting.Nominated for discussion during a libs-api team meeting.

I-libs-nominatedNominated for discussion during a libs team meeting.Nominated for discussion during a libs team meeting.

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-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.

#143471 In rust-lang/rust;

· purplesyringa opened on Jul 5, 2025

3 comments

Cannot cross-compile with rustc-dev package (or with any pre-built rlib files that depend on proc-macros, really)

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

Status: Open.

#143226 In rust-lang/rust;

· RalfJung opened on Jun 30, 2025

9 comments

Make all submodules in the rustc repo optional

A-backtraceArea: BacktracesArea: Backtraces

A-metaArea: Issues & PRs about the rust-lang/rust repository itselfArea: Issues & PRs about the rust-lang/rust repository itself

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

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.

#143079 In rust-lang/rust;

· RalfJung opened on Jun 27, 2025

5 comments

Cannot Use NoOp Procedural Macro as Custom Inner Attribute

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

A-proc-macrosArea: Procedural macrosArea: Procedural macros

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

Status: Open.

#143003 In rust-lang/rust;

· benwu25 opened on Jun 25, 2025

3 comments

wasmer relies on __rust_probestack

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

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-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.

#142612 In rust-lang/rust;

· juntyr opened on Jun 17, 2025

18 comments

bootstrap: check compiler stages are off compared to build stages

A-bootstrap-stagesArea: issues with the meaning of stage numbersArea: issues with the meaning of stage numbers

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

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.

#142246 In rust-lang/rust;

· RalfJung opened on Jun 9, 2025

11 comments

Transmuting fn pointer to a usize in const somehow causes UB?

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

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

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

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.

#142230 In rust-lang/rust;

· theemathas opened on Jun 9, 2025

2 comments

Binary size impact of enabling -Zshare-generics for opt-level=z

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

E-needs-investigationCall for partcipation: This issues needs some investigation to determine current statusCall for partcipation: This issues needs some investigation to determine current status

I-heavyIssue: Problems and improvements with respect to binary size of generated code.Issue: Problems and improvements with respect to binary size of generated 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.

#142164 In rust-lang/rust;

· Noratrieb opened on Jun 7, 2025

1 comment

IATs: Decide if we want to hard-error on inherent projections if the path in question may just as well refer to an enum variant

A-type-systemArea: Type systemArea: Type system

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

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

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.

#142023 In rust-lang/rust;

· fmease opened on Jun 4, 2025

2 comments

download-rustc downloads rustc-dev even when it is not needed

A-download-rustcArea: The `rust.download-rustc` build option.Area: The `rust.download-rustc` build option.

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

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.

#142013 In rust-lang/rust;

· RalfJung opened on Jun 4, 2025

5 comments

Rustdoc reports broken-intra-doc-links for Github markdown [!IMPORTANT]-type blockquotes

A-intra-doc-linksArea: Intra-doc links, the ability to link to items in docs by nameArea: Intra-doc links, the ability to link to items in docs by name

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

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

T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue.Relevant to the rustdoc team, which will review and decide on the PR/issue.

Status: Open.

#141866 In rust-lang/rust;

· Qix- opened on Jun 1, 2025

4 comments



libtest filters should include the test crate's name in the string matched against the filter

A-libtestArea: `#[test]` / the `test` libraryArea: `#[test]` / the `test` library

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

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-testing-devexRelevant to the testing devex team (testing DX), which will review and decide on the PR/issue.Relevant to the testing devex team (testing DX), which will review and decide on the PR/issue.

Status: Open.

#141862 In rust-lang/rust;

· RalfJung opened on Jun 1, 2025

4 comments

Should a [..] slice pattern constitute a discriminant read

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

A-slice-patternsArea: Slice patterns, https://github.com/rust-lang/rust/issues/23121Area: Slice patterns, https://github.com/rust-lang/rust/issues/23121

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

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.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#141825 In rust-lang/rust;

· meithecatte opened on May 31, 2025

3 comments

Please stop using GITHUB_ACTION to change the behaviour of the build system

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

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)

T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue.Relevant to the infrastructure team, which will review and decide on the PR/issue.

Status: Open.

#141813 In rust-lang/rust;

· lu-zero opened on May 31, 2025

7 comments

Blanket impl of super trait with method returning associated type: "incompatible type for trait"

A-type-systemArea: Type systemArea: Type system

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

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: Open.

#141807 In rust-lang/rust;

· TimNN opened on May 31, 2025

3 comments

Restore mismatched_lifetime_syntaxes wording about "elided lifetime has a name"?

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

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

L-mismatched_lifetime_syntaxesLint: mismatched_lifetime_syntaxesLint: mismatched_lifetime_syntaxes

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#141752 In rust-lang/rust;

· jieyouxu opened on May 30, 2025

6 comments

We don't imply outlives-bounds from the own explicit bounds of a GAT projection

A-associated-itemsArea: Associated items (types, constants & functions)Area: Associated items (types, constants & functions)

A-GATsArea: Generic associated types (GATs)Area: Generic associated types (GATs)

A-implied-boundsArea: Implied bounds / inferred outlives-boundsArea: Implied bounds / inferred outlives-bounds

A-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regions

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

P-lowLow priorityLow priority

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.

#141692 In rust-lang/rust;

· fmease opened on May 28, 2025

1 comment

Adding use std::error::Error unexpectedly breaks lifetime inference

A-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regions

A-type-systemArea: Type systemArea: Type system

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

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: Open.

#141673 In rust-lang/rust;

· phip1611 opened on May 28, 2025

4 comments

Can't use fn() for C binding if C uses sentinel value

A-FFIArea: Foreign function interface (FFI)Area: Foreign function interface (FFI)

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

T-opsemRelevant to the opsem teamRelevant to the opsem team

Status: Open.

#141660 In rust-lang/rust;

· karolherbst opened on May 27, 2025

9 comments

Stuck on the call to def_path_str

A-query-systemArea: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html)Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html)

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

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.

#141546 In rust-lang/rust;

· xizheyin opened on May 25, 2025

4 comments

Consider folkertdev's c_variadic proposal

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

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

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.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#141524 In rust-lang/rust;

· traviscross opened on May 24, 2025

43 comments

Unexpected type inference failure when comparing Vec::<T>::new() to an empty array []

A-inferenceArea: Type inferenceArea: Type inference

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

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.

#141329 In rust-lang/rust;

· 623637646 opened on May 21, 2025

1 comment

&raw const some_union.field erroneously requires unsafe

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

T-langRelevant to the language teamRelevant to the language team

T-opsemRelevant to the opsem teamRelevant to the opsem team

Status: Open.

#141264 In rust-lang/rust;

· kupiakos opened on May 19, 2025

1

2 comments