Broken repository link
For a crate I recently updated, the repository link is broken: https://lib.rs/crates/pico-sdk
The Github link points to: https://github.com/meatysolutions/pico-sdk/tree/HEAD/rust/sdk
This might have been the path of the Cargo.toml for pico-sdk in a previous version of the crate (./rust/sdk/Cargo.toml), but for the latest version it has moved to ./sdk/Cargo.toml.
I only noticed this because referrals from lib.rs disappeared when I updated the crate!