Function syntax::feature_gate::find_lang_feature_accepted_version [−] [src]

pub fn find_lang_feature_accepted_version(feature: &str) -> Option<&'static 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?

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