zccache: Add version 1.13.21

[luhenry]

• Package: zccache
• Version: 1.13.21
• Source: https://github.com/zackees/zccache
• Docs: https://pypi.org/project/zccache/

Compiles the Rust zccache/zccache-fp binaries and three abi3 pyo3 extensions into one py3-none wheel. Upstream publishes no riscv64 wheel.

Mirrors the build/build-wheels/test-wheels jobs of upstream's release-auto.yml and the native-pytest job of python-tests.yml.

Differs from upstream

• Native cargo build in the manylinux image, not soldr/zig cross-compilation - upstream has no riscv64 lane
• dnf install protobuf-compiler - protoc-bin-vendored has no riscv64 binary
• Calls upstream's build_wheel() for one platform - its build-wheels command requires all six

Matrix: tests on cp312/cp313/cp314; the abi3 extensions cannot load on free-threaded cp314t.

Testing

• same as upstream, run against the installed wheel

License: Wheel ships zccache itself (AGPL-3.0-only); upstream's wheels carry no licence text, so 0003 adds it.

Patches

• 0001-protocol-fall-back-to-prost-build-s-own-protoc-looku.patch - Inappropriate [protoc-bin-vendored has no riscv64 binary]. build.rs panics without it. riscv64-only.
• 0002-deps-bump-crash-handler-to-0.8-for-riscv64-support.patch - To upstream. crash-context 0.6 has no riscv64 ucontext_t, so the build fails. Reproduces cross-compiling from x86.
• 0003-release_workflow-ship-LICENSE-in-every-wheel-s-dist-.patch - To upstream. Wheels carry no LICENSE without it. Reproduces everywhere.

[luhenry]

The failed check_commit_messages run (job 115916157215) is the known pull_request "opened" webhook stale-body-snapshot case, same as #3221-#3228: it evaluated the PR body before create_pull_request's auto-injected "Generated by Claude Code" footer was stripped via update_pull_request. The edited-triggered re-run already passed cleanly (all three checks green). No fix needed — riscv64 build now queued.

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Generated by Claude Code