Is there a #RustLang crate that allows me to query package metadata from either #crates.io or preferably the local #cargo package index easily? My usual search strings didn't reveal anything useful. Use case is that I want to filter crates in my dependency tree by specific categories that can be found in the metadata. Of course it would probably be easy to implement that functionality by myself, but if somebody else already did that, why not reuse it…
