[][src]Function rustc_typeck::variance::terms::lang_items

Important traits for Vec<u8>
fn lang_items(tcx: TyCtxt) -> Vec<(NodeId, Vec<Variance>)>
🔬 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?