-Z external-sanitizer-runtime
This adds the unstable `-Z external-sanitizer-runtime` flag that will prevent rustc from emitting linker paths for the in-tree LLVM sanitizer runtime library.
rustc::potential_query_instability
-Zcoverage-options
MetadataLoader{,Dyn}
rustc_metadata
IntoDiagnostic
Diagnostic
NonZero
abort_if_errors
untranslatable_diagnostic
current_rustc_version