Function syntax_ext::deriving::bounds::expand_deriving_unsafe_bound [] [src]

pub fn expand_deriving_unsafe_bound(
    cx: &mut ExtCtxt,
    span: Span,
    _: &MetaItem,
    _: &Annotatable,
    _: &mut FnMut(Annotatable)
)
🔬 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?