Reference
Use the API portal for a project-oriented crate entry point, or open the standard Rustdoc for Cargo/Rustdoc’s native crate index, search, source pages, and item-level documentation. This section keeps the cross-crate values and vocabulary needed to read more than one module.
The guide, API portal, and standard Rustdoc deliberately keep separate search indexes. Rustdoc remains the authority for public Rust signatures.