fix(ci): add lockfile-aware stale cache purge on ARM runners#112
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Self-hosted ARM runners keep target/ between runs. When Dependabot merges bump dependencies, stale .d dep-info files reference old crate hashes that no longer exist, causing cargo check/clippy/test to fail with "could not parse/generate dep info — No such file or directory." Add a purge step to all ARM jobs (check, clippy, test, integration-test) that detects Cargo.lock changes via sha256 hash comparison and selectively purges dep-info files, build script outputs, and fingerprints. Only triggers when deps actually changed — no-op on normal runs. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The conditional lock-hash approach had a race: when multiple jobs share the same ARM runner, the first job updates the hash, and subsequent jobs skip the purge — but Swatinem/rust-cache may have restored stale state. Also, the dep-info purge alone isn't enough: registry source files (~/.cargo/registry/src/) can also be stale, causing aws-lc-sys build failures when cc-rs can't find .c source files. Fix: make purge unconditional and add registry source purge + cargo fetch. The overhead is ~3s per job (fast when .crate tarballs cached). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…ve delete v2 approach (delete dep-info + registry/src + cargo fetch) was wrong: cargo fetch only downloads .crate archives, doesn't extract to registry/src/. This left aws-lc-sys assembly source files missing, causing cc1 fatal errors. The correct fix: just nuke target/ entirely. Stale dep-info files live in target/debug/deps/, and build script artifacts in target/debug/build/. Deleting the whole dir forces a clean rebuild without touching registry. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…ARGO_HOME race Concurrent ARM jobs (check/clippy/test) race on shared ~/.cargo/registry when extracting crates, causing 'could not compile futures-core' in integration-test. Adding needs:[check,clippy,fmt,test] ensures integration-test runs after all compile jobs finish, eliminating the race condition. Co-Authored-By: Paperclip <noreply@paperclip.ing>
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🤖 [Agent: CTO] Code Review: APPROVED Classification: Review:
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Summary
.ddep-info files after Dependabot dependency bumpsPurge stale dep-info on lockfile changestep to all ARM jobs (check, clippy, test, integration-test)Context
Self-hosted ARM runners keep
target/between runs. When Dependabot merges bump dependencies, stale.ddep-info files reference old crate hashes (e.g.,rustls_pki_types-af1243aa.d) that no longer exist.Affected runs:
Test plan
🤖 Generated with Claude Code