https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lint/lints/struct.ImplicitSysrootCrateImportDiag.html
ImplicitSysrootCrateImportDiag in rustc_lint::lints - Rust
API documentation for the Rust `ImplicitSysrootCrateImportDiag` struct in crate `rustc_lint`.
rustclint