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std::autodiff should work with download-llvm

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.

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.

#147535 In rust-lang/rust;

· ZuseZ4 opened on Oct 9, 2025

Tidy fails with node 22.20.0 and npm 10.9.3 installed

A-tidyArea: The tidy toolArea: The tidy tool

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

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.

#147500 In rust-lang/rust;

· Zeckmathederg opened on Oct 8, 2025

Tracking issue for enabling main rust-analyzer tests in r-l/r CI

A-CIArea: Our Github Actions CIArea: Our Github Actions CI

A-test-infraArea: test infrastructure (may span bootstrap/compiletest/more)Area: test infrastructure (may span bootstrap/compiletest/more)

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-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.

T-rust-analyzerRelevant to the rust-analyzer team, which will review and decide on the PR/issue.Relevant to the rust-analyzer team, which will review and decide on the PR/issue.

Status: Open.

#147370 In rust-lang/rust;

· jieyouxu opened on Oct 5, 2025

Can't bootstrap 1.89 on Windows with custom dlltool

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

O-androidOperating system: AndroidOperating system: Android

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.

#147229 In rust-lang/rust;

· jfgoog opened on Oct 1, 2025

A way to out-put building self-contained deps

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

O-muslTarget: The musl libcTarget: The musl libc

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.

#147065 In rust-lang/rust;

· weihanglo opened on Sep 26, 2025

Add bootstrap option to ignore <code>ignore-backends</code> option in tests

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-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.

#147063 In rust-lang/rust;

· GuillaumeGomez opened on Sep 26, 2025

rust-1.91.0_beta produces a broken rustc-stage1 on custom musl target

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.

#146930 In rust-lang/rust;

· stefson opened on Sep 23, 2025

bootstrap seems to default to downloading the LLVM submodule

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

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.

#146768 In rust-lang/rust;

· RalfJung opened on Sep 19, 2025

Tracking issue for release notes of #145071: Update the minimum external LLVM to 20

A-CIArea: Our Github Actions CIArea: Our Github Actions CI

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.

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

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-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-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-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.

#146696 In rust-lang/rust;

· rustbot opened on Sep 18, 2025

· 

1.92.0

add an extension point in bootstrap.toml for metadata?

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

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.

#146682 In rust-lang/rust;

· jyn514 opened on Sep 17, 2025

Change how LLD is configured in bootstrap.toml

C-cleanupCategory: PRs that clean code up or issues documenting cleanup.Category: PRs that clean code up or issues documenting cleanup.

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.

#146640 In rust-lang/rust;

· Kobzol opened on Sep 16, 2025

rust-1.90.0 prerelease tries to download rust-std in offline mode

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.

#146591 In rust-lang/rust;

· stefson opened on Sep 15, 2025