[−][src]Constant syntax::feature_gate::ACCEPTED_FEATURES
const ACCEPTED_FEATURES: &[(&str, &str, Option<u32>, Option<&str>)]
🔬 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?
Those language feature has since been Accepted (it was once Active)