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compiletest panics with inscrutable error message when invoked the wrong way

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

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-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.

#149523 In rust-lang/rust;

· RalfJung opened on Dec 1, 2025

<code>compare-output-by-lines</code> diff of stdout from <code>//@ check-run-results</code> is unclear

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

A-compiletest-compare-modesArea: compiletest compare-modesArea: compiletest compare-modes

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.

#148442 In rust-lang/rust;

· WaffleLapkin opened on Nov 3, 2025

Reconsider debugger discovery for debuginfo test suite

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

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

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.

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.

Status: Open.

#148361 In rust-lang/rust;

· jieyouxu opened on Nov 1, 2025

compiletest: error on duplicate directives

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

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

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-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.

#148359 In rust-lang/rust;

· jieyouxu opened on Nov 1, 2025

Parallel rustc + <code>compare-output-by-lines</code> + edition 2015 loses diagnostic file path / line number in stderr snapshot

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

A-parallel-compilerArea: parallel compilerArea: parallel compiler

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

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.

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

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.

#148235 In rust-lang/rust;

· jieyouxu opened on Oct 29, 2025

Audit what compiletest does with revisions in auxiliaries

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

A-compiletest-directivesArea: compiletest directivesArea: compiletest directives

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

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

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.

#148133 In rust-lang/rust;

· jieyouxu opened on Oct 26, 2025

Implement <code>//@ target</code> directive for cross-compilation test directives

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

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

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-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.

#148038 In rust-lang/rust;

· jchecahi opened on Oct 23, 2025

<code>compiletest</code> compile-flags forwarding between current test crate and auxiliaries/minicore is iffy

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

A-compiletest-directivesArea: compiletest directivesArea: compiletest directives

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

E-hardCall for participation: Hard difficulty. Experience needed to fix: A lot.Call for participation: Hard difficulty. Experience needed to fix: A lot.

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.

#147881 In rust-lang/rust;

· jieyouxu opened on Oct 19, 2025

compiletest: Add a variant of <code>{{build-base}}</code> that points to the current test's build subdirectory

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

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.

#147216 In rust-lang/rust;

· Zalathar opened on Oct 1, 2025

Cleanup how to handle test discovery between bootstrap &lt;-&gt; compiletest

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

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.

#146498 In rust-lang/rust;

· jieyouxu opened on Sep 13, 2025

Tracking issue for MCP 861: Make the UI test suite more amenable to multiple editions

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

B-MCP-approvedBlocker: Approved by an accepted MCP but not yet fully implemented.Blocker: Approved by an accepted MCP but not yet fully implemented.

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

S-tracking-impl-incompleteStatus: The implementation is incomplete.Status: The implementation is incomplete.

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.

#145364 In rust-lang/rust;

· fmease opened on Aug 13, 2025

<code>unused-revision-names</code> compiletest directive has confusing name

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

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

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.

#144748 In rust-lang/rust;

· lolbinarycat opened on Jul 31, 2025