As a general rule (for established libraries at least), the docs for rust crates stored on https://docs.rs https://docs.rs are pretty good. This comes from havi

As a general rule (for established libraries at least), the docs for rust crates stored on https://docs.rs https://docs.rs are pretty good. This comes from having docs being built-in to the tooling, so it's really easy to deliver docs in a consistent format.