### Description It would be nice to have some way to combine multiple caches together in a job. For example, I have a project which would like Rust toolchains cached as well as a build of Git `master`. In order to not pull down/require the Git build on those just using the stock one, I'd like to just give them the toolchains, but the Git `master` build should also have access to the toolchain. ### Proposal Add a `cache:keys` key for jobs which would pull from the named caches, but wouldn't be used to refresh them. ### Links / references