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Issues list

stage1 compiler has some debuginfo with misleading library paths A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-dist-components Area: dist components, e.g. `rustc-dev`, `rustc-src`, etc. A-path-remapping Area: path remapping, --remap-path-prefix, --remap-cwd-prefix, --remap-diagnostics-scope etc. C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#142050 opened Jun 5, 2025 by cuviper
2
Suggested workflow for vscode check-on-save can lead to surprisingly expensive check builds A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#141955 opened Jun 3, 2025 by RalfJung
1
tidy triagebot.toml trigger_files fails on jj git clone unchecked out submodules A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-tidy Area: The tidy tool C-external-bug Category: issue that is caused by bugs in software beyond our control T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#139856 opened Apr 15, 2025 by jieyouxu
1
3
Build autodiff with download-ci-llvm=true A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust C-bug Category: This is a bug. F-autodiff `#![feature(autodiff)]` T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#139779 opened Apr 14, 2025 by ZuseZ4
2
rustdoc testsuites: Consistently use doc-flags over compile-flags for rustdoc-exclusive flags A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-testsuite Area: The testsuite used to check the correctness of rustc C-cleanup Category: PRs that clean code up or issues documenting cleanup. C-discussion Category: Discussion or questions that doesn't represent real issues. P-low Low priority T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#137442 opened Feb 22, 2025 by fmease
rustc build: Pretty bad error message when there is a syntax error in an flt file A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-diagnostics Area: Messages for errors, warnings, and lints A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137223 opened Feb 18, 2025 by RalfJung
Github's conflict resolution creates merge commits that are then flagged by rustbot A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue.
#136521 opened Feb 4, 2025 by safinaskar
6
We should build ALL Rust code in this repo in CI A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-test-infra Area: test infrastructure (may span bootstrap/compiletest/more) A-testsuite Area: The testsuite used to check the correctness of rustc C-enhancement Category: An issue proposing an enhancement or a PR with one. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#136406 opened Feb 1, 2025 by safinaskar
3
It is unclear how to reproduce "Testing stage2 error-index (x86_64-unknown-linux-gnu)" A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-diagnostics Area: Messages for errors, warnings, and lints C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#132725 opened Nov 7, 2024 by RalfJung
@onur-ozkan
3
Clippy gets rebuilt twice on every change, and rustdoc also gets rebuilt A-clippy Area: Clippy A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#131636 opened Oct 13, 2024 by RalfJung
3
Deduplicate test suites for alternative codegen backends A-codegen Area: Code generation A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-testsuite Area: The testsuite used to check the correctness of rustc C-discussion Category: Discussion or questions that doesn't represent real issues. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#128741 opened Aug 6, 2024 by RalfJung
17
Hard-to-read ICEs when fluent translation uses non-existing variable A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-diagnostics Area: Messages for errors, warnings, and lints A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic D-diagnostic-infra Diagnostics: Issues that affect all diagnostics, or relate to the diagnostic machinery itself. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-papercut Diagnostics: An error or lint that needs small tweaks. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#128340 opened Jul 29, 2024 by RalfJung
8
./x test <path_to_test> does not work on msys2 A-compiletest Area: The compiletest test runner A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust C-bug Category: This is a bug. E-medium Call for participation: Medium difficulty. Experience needed to fix: Intermediate. E-needs-investigation Call for partcipation: This issues needs some investigation to determine current status T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#128328 opened Jul 29, 2024 by jieyouxu
1
compiletest: don't silently accept unsupported directives in test suites A-compiletest Area: The compiletest test runner A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust C-cleanup Category: PRs that clean code up or issues documenting cleanup. E-hard Call for participation: Hard difficulty. Experience needed to fix: A lot. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#128058 opened Jul 22, 2024 by jieyouxu
1
Add rustc compiler development support for the Zed Editor A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust C-enhancement Category: An issue proposing an enhancement or a PR with one. E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#126931 opened Jun 25, 2024 by KittyBorgX
@shrirambalaji
7
Document the run_make_support library A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-docs Area: Documentation for any part of the project, including the compiler, standard library, and tools A-run-make Area: port run-make Makefiles to rmake.rs T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126645 opened Jun 18, 2024 by jieyouxu
@jieyouxu
CURRENT_RUSTC_VERSION does not work with #[deprecated] A-attributes Area: Attributes (`#[…]`, `#![…]`) A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust L-deprecated Lint: deprecated requires-internal-features This issue requires the use of internal features. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#126323 opened Jun 12, 2024 by RalfJung
4
Overriding LTO option in global config.toml release profile causes bootstrap failure A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-LTO Area: Link-time optimization (LTO) O-windows-msvc Toolchain: MSVC, Operating system: Windows T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#126141 opened Jun 7, 2024 by RossSmyth
4
run-make-support: investigate if it's possible to make rust-analyzer work with rmake.rs files A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-run-make Area: port run-make Makefiles to rmake.rs A-testsuite Area: The testsuite used to check the correctness of rustc C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#125727 opened May 29, 2024 by jieyouxu
pre-push hook should only look at staged changes A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#125654 opened May 28, 2024 by jyn514
compiletest should note when test output is normalized A-compiletest Area: The compiletest test runner A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-diagnostics Area: Messages for errors, warnings, and lints A-testsuite Area: The testsuite used to check the correctness of rustc D-confusing Diagnostics: Confusing error or lint that should be reworked. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#125537 opened May 25, 2024 by jyn514
2
"--emit asm" uses different syntax than asm! on x86 A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-inline-assembly Area: Inline assembly (`asm!(…)`) C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121592 opened Feb 25, 2024 by RalfJung
3
Generate different .vscode/setting for different config profile A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust C-feature-request Category: A feature request, i.e: not implemented / a PR. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#121173 opened Feb 16, 2024 by chenyukang
Test polymorphic_recursion.rs takes a long time to compile with a debug-assertions=true compiler A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-mir-opt Area: MIR optimizations A-testsuite Area: The testsuite used to check the correctness of rustc C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#121121 opened Feb 15, 2024 by Zalathar
4
consider bannig empty panic/unreachable/ bugs from rustc codebase A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-meta Area: Issues & PRs about the rust-lang/rust repository itself C-cleanup Category: PRs that clean code up or issues documenting cleanup. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#118955 opened Dec 14, 2023 by matthiaskrgr
5
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