An incremental build cache for Rust on GHA

What it does

Registry-backed CI cache volumes: mount on start, push changed chunks on success - cache/rust at main · clipper-registry/cache

This is mostly a proof of concept. It is faster, but requires a nightly Rust toolchain to use -Z checksum-freshness . Caches the cargo target/ directory as a clipper volume and enables incremental compilation with content-hash freshness, so warm runs rebuild only what changed. Generally, expect a 30% improvement in compile times over sccache (workflow dependent). Linux runners only for now; macOS and Windows support coming soon. - uses : actions-rust-lang/setup-rust-toolchain@v1 with : toolchain : nightly cache : false # setup-rust-toolchain's built-in cache would fight this action over target/ If the repository's rust-toolchain.toml pins stable, also set RUSTUP_TOOLCHAIN: nightly in the…from github.com

In the maker’s words, at launch

Hi HN, I'm Kyle, the creator of Clipper, a container registry with 7x faster builds via lazy pulls and cache mount exports. In the process of implementing cache mount exports I ended up with a FUSE mounted filesystem backed by a remote content defined store. I went looking for fun things to do with it and found that…

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