(active, if_let_guard, "1.47.0", Some(51114), None),
/// Allows using imported `main` function
(active, imported_main, "1.53.0", Some(28937), None),
- /// Allows in-band quantification of lifetime bindings (e.g., `fn foo(x: &'a u8) -> &'a u8`).
- (active, in_band_lifetimes, "1.23.0", Some(44524), None),
/// Allows inferring `'static` outlives requirements (RFC 2093).
(active, infer_static_outlives_requirements, "1.26.0", Some(54185), None),
/// Allows associated types in inherent impls.