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diagnostics flipflopping with Zthreads

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

A-parallel-compilerArea: parallel compilerArea: parallel compiler

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

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.

#142063 In rust-lang/rust;

· matthiaskrgr opened on Jun 5, 2025

parallel rustc: async closures not reproducible

A-async-closures`async || {}``async || {}`

A-parallel-compilerArea: parallel compilerArea: parallel compiler

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

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.

#140425 In rust-lang/rust;

· matthiaskrgr opened on Apr 29, 2025

parallel rustc: static mut refs not reproducible

A-parallel-compilerArea: parallel compilerArea: parallel compiler

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

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.

#140413 In rust-lang/rust;

· matthiaskrgr opened on Apr 28, 2025

Change one <code>FxHashMap</code> to <code>FxIndexMap</code> in librustdoc

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

A-rustdoc-jsonArea: Rustdoc JSON backendArea: Rustdoc JSON backend

S-blockedStatus: Blocked on something else such as an RFC or other implementation work.Status: Blocked on something else such as an RFC or other implementation work.

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: Draft (not ready).

rust-lang/rustnumber 138871

#138871 In rust-lang/rust;

· smoelius opened on Mar 24, 2025

Rust reproducibility issue - Finding the proper fix

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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.

#134589 In rust-lang/rust;

· sundeep-kokkonda opened on Dec 19, 2024

Consider using random keys for incr. comp. hashing

A-incr-compArea: Incremental compilationArea: Incremental compilation

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

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.

#129272 In rust-lang/rust;

· michaelwoerister opened on Aug 19, 2024

<code>--crate-type=rlib</code> + <code>-Cdebuginfo=2</code> + <code>-Zremap-cwd-prefix=.</code> is not reproducible on Windows

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

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

O-windowsOperating system: WindowsOperating system: Windows

S-needs-reproStatus: This issue has no reproduction and needs a reproduction to make progress.Status: This issue has no reproduction and needs a reproduction to make progress.

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.

#129117 In rust-lang/rust;

· jieyouxu opened on Aug 15, 2024

derives: parallel compiler makes builds irreproducible

A-parallel-compilerArea: parallel compilerArea: parallel compiler

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

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.

#129094 In rust-lang/rust;

· matthiaskrgr opened on Aug 14, 2024

Tracking Issue for Reproducible Build bugs and challenges

A-debuginfoArea: Debugging information in compiled programs (DWARF, PDB, etc.)Area: Debugging information in compiled programs (DWARF, PDB, etc.)

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

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

D-diagnostic-infraDiagnostics: Issues that affect all diagnostics, or relate to the diagnostic machinery itself.Diagnostics: Issues that affect all diagnostics, or relate to the diagnostic machinery itself.

S-tracking-foreverStatus: Never to be closed.Status: Never to be closed.

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.

Tracking Issue

#129080 In rust-lang/rust;

· jieyouxu opened on Aug 14, 2024

LF_BUILDINFO introduces non-determinism to Windows rlib builds

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

O-windowsOperating system: WindowsOperating system: Windows

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.

#128842 In rust-lang/rust;

· capickett opened on Aug 8, 2024

rustdoc reproducibility issue due to nondeterministic anon.llvm.&lt;hash&gt;

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

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.

#126976 In rust-lang/rust;

· sundeep-kokkonda opened on Jun 26, 2024

debugger_visualizer: natvis files are accumulated instead of replaced on incremental builds

A-reproducibilityArea: Reproducible / deterministic buildsArea: Reproducible / deterministic builds

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

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

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.

#120913 In rust-lang/rust;

· MaulingMonkey opened on Feb 11, 2024