{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"///"}]}
    /// `a` (but none of the known bounds are sufficient).
    /// The parameter/associated-type `p` must be known to outlive the lifetime
    GenericBoundFailure(SubregionOrigin<'tcx>, GenericKind<'tcx>, Region<'tcx>),