Function rustc_mir::transform::check_unsafety::builtin_derive_def_id [−][src]
fn builtin_derive_def_id<'a, 'tcx>(
tcx: TyCtxt<'a, 'tcx, 'tcx>,
def_id: DefId
) -> Option<DefId>
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?