{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"@future_incompatible"}]}
    @future_incompatible = FutureIncompatibleInfo {
    "detect single-argument panic!() invocations in which the argument is not a format string",
        reason: FutureIncompatibilityReason::EditionSemanticsChange(Edition::Edition2021),