Static rustc_lint_defs::builtin::STABLE_FEATURES

pub static STABLE_FEATURES: &Lint

The stable_features lint detects a feature attribute that has since been made stable.

Example

#![feature(test_accepted_feature)]
fn main() {}

{{produces}}

Explanation

When a feature is stabilized, it is no longer necessary to include a #![feature] attribute for it. To fix, simply remove the #![feature] attribute.