{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"reason:"}]}
        reason: FutureIncompatibilityReason::EditionError(Edition::Edition2018),
     @future_incompatible = FutureIncompatibleInfo {
        reference: "issue #53130 <https://github.com/rust-lang/rust/issues/53130>",