The Gitea actions cache on this instance stores caches (1.85 GB saves
confirmed in run 597) but never restores them — every run back through
run 584+ logs 'No cache found' even for exact keys saved an hour
earlier, including master-to-master. Every CI run has therefore been a
full cold build (~37 min), plus ~4 min tarring a cache nobody reads.
- Point CARGO_TARGET_DIR at a persistent path on the rust-host runner
(host executor — filesystem carries over between runs), with a 40 GiB
prune guard. Warm runs drop to minutes without touching the broken
cache API.
- Drop Swatinem/rust-cache (pure overhead until the server is fixed).
- Split cargo fmt --check into a seconds-long fmt job gating the heavy
test job, so a formatting slip can't burn a 35-minute build again
(run 600).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
funman300