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Issues: rust-lang/rust

Draft release notes for 1.88.0
#141598 opened May 26, 2025 by Mark-Simulacrum
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Issues list

parallel rustc: async closures not reproducible A-async-closures `async || {}` A-parallel-compiler Area: parallel compiler A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#140425 opened Apr 29, 2025 by matthiaskrgr
parallel rustc: static mut refs not reproducible A-parallel-compiler Area: parallel compiler A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#140413 opened Apr 28, 2025 by matthiaskrgr
Change one FxHashMap to FxIndexMap in librustdoc A-reproducibility Area: Reproducible / deterministic builds A-rustdoc-json Area: Rustdoc JSON backend S-blocked Status: Blocked on something else such as an RFC or other implementation work. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#138871 opened Mar 24, 2025 by smoelius • Draft
1 task
@aDotInTheVoid
23
Rust reproducibility issue - Finding the proper fix A-reproducibility Area: Reproducible / deterministic builds 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.
#134589 opened Dec 19, 2024 by sundeep-kokkonda
11
Consider using random keys for incr. comp. hashing A-incr-comp Area: Incremental compilation A-reproducibility Area: Reproducible / deterministic builds 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.
#129272 opened Aug 19, 2024 by michaelwoerister
4
--crate-type=rlib + -Cdebuginfo=2 + -Zremap-cwd-prefix=. is not reproducible on Windows A-reproducibility Area: Reproducible / deterministic builds A-testsuite Area: The testsuite used to check the correctness of rustc C-bug Category: This is a bug. O-windows Operating system: Windows S-needs-repro Status: This issue has no reproduction and needs a reproduction to make progress. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#129117 opened Aug 15, 2024 by jieyouxu
derives: parallel compiler makes builds irreproducible A-parallel-compiler Area: parallel compiler A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#129094 opened Aug 14, 2024 by matthiaskrgr
6
Tracking Issue for Reproducible Build bugs and challenges A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) A-diagnostics Area: Messages for errors, warnings, and lints A-reproducibility Area: Reproducible / deterministic builds C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC D-diagnostic-infra Diagnostics: Issues that affect all diagnostics, or relate to the diagnostic machinery itself. S-tracking-forever Status: Never to be closed. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue.
#129080 opened Aug 14, 2024 by jieyouxu
62 of 81 tasks
LF_BUILDINFO introduces non-determinism to Windows rlib builds A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. O-windows Operating system: Windows T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#128842 opened Aug 8, 2024 by capickett
2
rustdoc reproducibility issue due to nondeterministic anon.llvm.<hash> A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126976 opened Jun 26, 2024 by sundeep-kokkonda
8
debugger_visualizer: natvis files are accumulated instead of replaced on incremental builds A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. F-debugger_visualizer `#![feature(debugger_visualizer)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#120913 opened Feb 11, 2024 by MaulingMonkey
3
rust libs are not reproducible from 1.75 A-metadata Area: Crate metadata A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#120825 opened Feb 9, 2024 by sundeep-kokkonda
22
Parallel frontend (-Z threads=8) results in a different output than single-threaded A-parallel-compiler Area: parallel compiler A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#117776 opened Nov 10, 2023 by vincentdephily
15
Toolchain paths are being compiled into binaires A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. O-macos Operating system: macOS
#116948 opened Oct 19, 2023 by abrisco
25
The distributed compiler sources do not come with an up-to-date lockfile A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-release Relevant to the release subteam, which will review and decide on the PR/issue.
#116229 opened Sep 28, 2023 by RalfJung
3
Stable crate hash depends on host tuple A-cross Area: Cross compilation A-metadata Area: Crate metadata A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#113990 opened Jul 24, 2023 by JakobDegen
2
Object file in /tmp produces non-deterministic builds on Windows for crate-type=bin A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. O-windows-msvc Toolchain: MSVC, Operating system: Windows
#112587 opened Jun 13, 2023 by danakj
@michaelwoerister
8
librustc_driver.so not reproducible A-reproducibility Area: Reproducible / deterministic builds requires-custom-config This issue requires custom config/build for rustc in some way
#112098 opened May 30, 2023 by sundeep-kokkonda
1
Tracking Issue for trim-paths RFC 3127 A-backtrace Area: Backtraces A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) A-reproducibility Area: Reproducible / deterministic builds B-RFC-approved Blocker: Approved by a merged RFC but not yet implemented. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-trim-paths Feature: trim-paths T-cargo Relevant to the cargo team, which will review and decide on the PR/issue. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#111540 opened May 13, 2023 by ehuss
2 of 12 tasks
35
rustdoc link resolution is nondeterministic, depends on job number A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-cargo Relevant to the cargo team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#106011 opened Dec 21, 2022 by jonas-schievink
1
Mismatched wasm output on darwin vs Ubuntu A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug.
#97919 opened Jun 9, 2022 by nmattia
8
Docs say --remap-path-prefix treats paths as strings during matching but compiler does not A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#96870 opened May 9, 2022 by michaelwoerister
2
Reproducible build run-make tests fails if -C debuginfo=2 (on Linux this time) A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) A-reproducibility Area: Reproducible / deterministic builds A-run-make Area: port run-make Makefiles to rmake.rs C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#89911 opened Oct 15, 2021 by pnkfelix
2 tasks
6
Tracking Issue for -Z remap-cwd-prefix A-CLI Area: Command-line interface (CLI) to the compiler A-path-remapping Area: path remapping, --remap-path-prefix, --remap-cwd-prefix, --remap-diagnostics-scope etc. A-reproducibility Area: Reproducible / deterministic builds C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-needs-summary Status: It's hard to tell what's been done and what hasn't! Someone should do some investigation. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#89434 opened Oct 1, 2021 by ehuss
3 tasks
2
Windows builds are not deterministic with --crate-type=bin and path-prefix remapping A-reproducibility Area: Reproducible / deterministic builds C-bug Category: This is a bug. O-windows Operating system: Windows T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#88982 opened Sep 15, 2021 by danakj
6
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