Issues

• Book: more advice about using mutants with proptest

  documentation
  sourcefrog/cargo-mutants#661 · Filter by author sourcefrog opened on Oct 3, 2026

• Read config from .config/mutants.toml and [workspace.metadata.mutants]

  sourcefrog/cargo-mutants#645 · Filter by author theaddonn opened on Sep 11, 2026

• build_dir::test::fail_to_overwrite fails on Illumos

  sourcefrog/cargo-mutants#642 · Filter by author sourcefrog opened on Aug 17, 2026
  1

• Support for non-test verification

  sourcefrog/cargo-mutants#638 · Filter by author xd009642 opened on Aug 11, 2026

• cargo-mutants does not build on illumos (small PR attached)

  sourcefrog/cargo-mutants#637 · Filter by author plaidfinch opened on Aug 10, 2026
  3

• exclude_re on external modules does not apply inside module files

  sourcefrog/cargo-mutants#633 · Filter by author P4suta opened on Aug 9, 2026

• Struct-field deletion mutants ignore --re and --exclude-re

  sourcefrog/cargo-mutants#632 · Filter by author P4suta opened on Aug 9, 2026
  2

  

• Add --incremental as an alias for --iterate

  sourcefrog/cargo-mutants#621 · Filter by author RustyNova016 opened on Jun 5, 2026
  1

• Unmaintained dependency atty causes security warning

  sourcefrog/cargo-mutants#614 · Filter by author fwilhe2 opened on May 15, 2026
  3

• Also skip copying lower-level target directories

  sourcefrog/cargo-mutants#612 · Filter by author sourcefrog opened on May 4, 2026

• Add an option to only check packages that are in a diff but ignoring content of diff otherwise

  sourcefrog/cargo-mutants#608 · Filter by author sandersaares opened on Apr 14, 2026
  1

• Delete enum variants to see if they are used/tested properly

  sourcefrog/cargo-mutants#606 · Filter by author RustyNova016 opened on Mar 9, 2026
  1

• Delete struct fields to see if they are used/tested properly

  sourcefrog/cargo-mutants#605 · Filter by author RustyNova016 opened on Mar 9, 2026

• Emit ANSI progress bar messages

  terminal ui
  sourcefrog/cargo-mutants#604 · Filter by author sourcefrog opened on Feb 24, 2026

• Reduce time spent "blocking waiting for file lock on package cache"?

  performance
  sourcefrog/cargo-mutants#597 · Filter by author sourcefrog opened on Feb 1, 2026
  1

• Limit the memory (RAM) tests can use

  enhancement
  sourcefrog/cargo-mutants#594 · Filter by author sourcefrog opened on Feb 1, 2026

• Give mutants a version 0.1.0 (eventually)

  sourcefrog/cargo-mutants#592 · Filter by author kpreid opened on Jan 21, 2026
  2

• Use new subprocess kill API

  sourcefrog/cargo-mutants#582 · Filter by author sourcefrog opened on Jan 8, 2026

• Document and use a clearer semver policy

  documentation
  sourcefrog/cargo-mutants#571 · Filter by author sourcefrog opened on Dec 6, 2025
  2

• “Mutation” idea: delete/corrupt files

  generate
  sourcefrog/cargo-mutants#567 · Filter by author kpreid opened on Oct 12, 2025
  1

• Split exit codes, data schemas to a separate crate

  output
  sourcefrog/cargo-mutants#554 · Filter by author sourcefrog opened on Oct 5, 2025

• Automatically use --fail-fast on recent-enough nightly?

  sourcefrog/cargo-mutants#552 · Filter by author sourcefrog opened on Oct 4, 2025

• suggest static assertions against over-large allocations

  documentationsmall
  sourcefrog/cargo-mutants#549 · Filter by author sourcefrog opened on Sep 8, 2025

• Add flag to consider timeouts as "caught"

  sourcefrog/cargo-mutants#545 · Filter by author sanbox-irl opened on Aug 20, 2025
  6

• Add a single-page options reference

  documentation
  sourcefrog/cargo-mutants#543 · Filter by author sourcefrog opened on Aug 10, 2025