Caching `cargo-lambda` builds

[garysassano]

I was wondering if this action also caches cargo-lambda builds since that uses cargo-zigbuild under the hood.

[milesj]

I don't do anything explicit, so my assumption is no. What are the paths where lambda caches are stored?

[garysassano]

A build executed with cargo lambda build --release stores the cache at target/release.

I could verify that everything works using the Swatinem/rust-cache action, so the problem is probably related to how moonrepo/setup-rust handles the caching.