{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"///"}]}
    /// Allows using subslice patterns, `[a, .., b]` and `[a, xs @ .., b]`.
    (accepted, shorter_tail_lifetimes, "1.84.0", Some(123739)),
    (accepted, slice_patterns, "1.42.0", Some(62254)),