Along with the -rs being redundant for a riust crate, keeping it the same name would imply to me that it's using the mimimp3 code base as a library of some sort

Along with the -rs being redundant for a riust crate, keeping it the same name would imply to me that it's using the mimimp3 code base as a library of some sort, and providing Rust bindings. IMO, rinimp3 is a good compromise that gives homage to the original source while also denoting it as it's own project.