Issues

• Add an opt-in shutdown guard that preserves the exit status under a closed output pipe

  bugdocumentationenhancementhighmediumpythontesting
  leynos/cuprum#671 · Filter by author leynos opened on Oct 30, 2026
  3

• #440 same-basename rejection clause is satisfied by any refusal, not by the arrangement it prescribes

  lowtesting
  leynos/cuprum#665 · Filter by author leynos opened on Oct 25, 2026
  2

• Roadmap 12.1.6 omits the surviving record of the deleted #439

  documentationlow
  leynos/cuprum#664 · Filter by author leynos opened on Oct 25, 2026

• run_sync() raises RuntimeError inside a running event loop, and nothing documents it

  bugmediumtesting
  leynos/cuprum#663 · Filter by author leynos opened on Oct 25, 2026

• docs/scripting-standards.md still calls scoped(allowlist=...) at three sites

  bugdocumentationlowtesting
  leynos/cuprum#662 · Filter by author leynos opened on Oct 25, 2026

• Cover the Linux splice-versus-fallback dispatch in pump_stream

  enhancementlowtesting
  leynos/cuprum#661 · Filter by author leynos opened on Oct 25, 2026

• Add Unix behavioural coverage for the public stream entry points

  lowtesting
  leynos/cuprum#660 · Filter by author leynos opened on Oct 25, 2026

• Reconcile Python pump and consume adapter contracts

  bugenhancementmediumrefactortesting
  leynos/cuprum#659 · Filter by author leynos opened on Oct 25, 2026

• Charge the trybuild UI compilation to the build graph, not to a test's allowance

  bugconcurrencyenhancementmediumperformancerefactortesting
  leynos/cuprum#653 · Filter by author leynos opened on Oct 21, 2026

• Support detached command launch beyond the launcher lifetime

  concurrencyenhancementmediumpython
  leynos/cuprum#647 · Filter by author leynos opened on Oct 19, 2026
  2

• Control shared build resources before timed test workloads start

  concurrencyenhancementperformancetesting
  leynos/cuprum#633 · Filter by author coderabbitai opened on Oct 16, 2026
  2

  

• Experiment: extend branch-scoped sccache warming beyond coverage with measured CI cost and reuse

  enhancementmediumperformance
  leynos/cuprum#609 · Filter by author leynos opened on Oct 10, 2026
  2

• Experiment: reduce pytest session churn and qualify selective xdist with CI evidence

  concurrencyenhancementperformance
  leynos/cuprum#607 · Filter by author leynos opened on Oct 10, 2026
  2

• Experiment: optimize nextest compile-test scheduling with CI baseline, cost and fidelity evidence

  concurrencyenhancementperformancetesting
  leynos/cuprum#606 · Filter by author leynos opened on Oct 10, 2026
  2

• Mutation sandbox omits README, Rust toolchain and yamllint inputs required by the baseline

  buglowtesting
  leynos/cuprum#592 · Filter by author leynos opened on Oct 7, 2026
  2

• Preserve the Rust 1.85 boundary contract across trybuild's patch-level MSRV increase

  bugenhancementmediumtesting
  leynos/cuprum#590 · Filter by author leynos opened on Oct 5, 2026
  2

• Prevent recurring native-toolchain update drift: one maturin pin, deterministic derived inputs, and tested PyO3 compatibility

  bugenhancementmediumtesting
  leynos/cuprum#589 · Filter by author leynos opened on Oct 5, 2026
  2

• Relative rsync path names can select an attacker-controlled remote shell

  bugmedium
  leynos/cuprum#553 · Filter by author leynos opened on Sep 29, 2026
  2

• Early-closing pipeline stage can leave upstream producer blocked

  bugconcurrencylow
  leynos/cuprum#552 · Filter by author leynos opened on Sep 29, 2026
  2

• Child can block indefinitely after an output callback fails

  bugconcurrencylow
  leynos/cuprum#551 · Filter by author leynos opened on Sep 29, 2026
  2

• Buffered custom log can expose child output before GitHub Actions stop frame

  bugconcurrencylow
  leynos/cuprum#550 · Filter by author leynos opened on Sep 29, 2026
  2

• Native pipeline handoff can attach to a recycled pipe descriptor

  bugconcurrencylow
  leynos/cuprum#549 · Filter by author leynos opened on Sep 29, 2026
  2

• Verifier downloads can exhaust host disk before digest check

  buglowperformance
  leynos/cuprum#548 · Filter by author leynos opened on Sep 29, 2026
  2

• Line-stream echo can inject GitHub Actions commands

  bugmedium
  leynos/cuprum#547 · Filter by author leynos opened on Sep 29, 2026
  2

• A checkout ref can restore a tracked file instead of switching branches

  buglow
  leynos/cuprum#546 · Filter by author leynos opened on Sep 29, 2026
  2