Caching
How do I cache Cargo dependencies?
Quick answer
Cache ~/.cargo/registry, ~/.cargo/git and target/ keyed on Cargo.lock.
The detail that matters
Add sccache for cross-branch reuse — target/ alone only helps the branch that populated it.
Your next build could be twice as fast, at half the price
Start free. Migrating away is the same one line, and we publish that diff too.
Related
Why does Cargo rebuild everything?Your cache key changes on every run, or target/ is not cached at all.Why is cache restore slow?GitHub throttles cache bandwidth, so a multi-gigabyte cache can take minutes to restore.How do I write a good cache key?Hash exactly the files that determine the cached content — usually the lockfile — and nothing else.What are restore-keys?Ordered prefixes tried when the exact cache key misses, so a partial match can still be restored.