[][src]Function rustc_typeck::variance::crate_variances

fn crate_variances<'a, 'tcx>(
    tcx: TyCtxt<'a, 'tcx, 'tcx>,
    crate_num: CrateNum
) -> Lrc<CrateVariancesMap>
🔬 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?