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Cleanup: make the <code>self-contained</code> path within sysroot calculation more principled

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.

#142361 In rust-lang/rust;

· jieyouxu opened on Jun 11, 2025

Error building rustc on M2 chip MacBook

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

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

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.

#142349 In rust-lang/rust;

· TheDeveloper101 opened on Jun 11, 2025

There isn't a reliable way to determine if a given target tuple supports std or not

A-targetsArea: Concerning the implications of different compiler targetsArea: Concerning the implications of different compiler targets

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

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-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.

#142296 In rust-lang/rust;

· jieyouxu opened on Jun 10, 2025

compiletest: "diff against nightly rustdoc" is actually against default toolchain

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

A-contributor-roadblockArea: Makes things more difficult for new or seasoned contributors to RustArea: Makes things more difficult for new or seasoned contributors to Rust

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

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.

#142254 In rust-lang/rust;

· aDotInTheVoid opened on Jun 9, 2025

bootstrap: <code>check compiler</code> stages are off compared to <code>build</code> 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

download-rustc appears broken under CI conditions

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

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

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)

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.

#142244 In rust-lang/rust;

· jieyouxu opened on Jun 9, 2025

Bootstrap ignores unknown values for codegen-backends

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.

#142184 In rust-lang/rust;

· GrigorenkoPV opened on Jun 7, 2025

bootstrap: Canceling rustc download poisons the cache

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.

#142161 In rust-lang/rust;

· RalfJung opened on Jun 7, 2025

We should only set <code>deny(warnings)</code> in doctests when <code>deny-warnings = false</code>

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

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-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.

#142151 In rust-lang/rust;

· RalfJung opened on Jun 7, 2025

get rid of <code>stage0-sysroot</code>

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

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.

#142052 In rust-lang/rust;

· jyn514 opened on Jun 5, 2025

bootstrap blog post should document how <code>x check</code> has changed and what to do instead

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

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-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.

#142051 In rust-lang/rust;

· jyn514 opened on Jun 5, 2025

stage1 compiler has some debuginfo with misleading library paths

A-contributor-roadblockArea: Makes things more difficult for new or seasoned contributors to RustArea: Makes things more difficult for new or seasoned contributors to Rust

A-dist-componentsArea: dist components, e.g. `rustc-dev`, `rustc-src`, etc.Area: dist components, e.g. `rustc-dev`, `rustc-src`, etc.

A-path-remappingArea: path remapping, --remap-path-prefix, --remap-cwd-prefix, --remap-diagnostics-scope etc.Area: path remapping, --remap-path-prefix, --remap-cwd-prefix, --remap-diagnostics-scope etc.

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.

#142050 In rust-lang/rust;

· cuviper opened on Jun 5, 2025