{"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"RUST_2021_INCOMPATIBLE_CLOSURE_CAPTURES,"}]}
        RUST_2021_INCOMPATIBLE_CLOSURE_CAPTURES,
        REPR_TRANSPARENT_EXTERNAL_PRIVATE_FIELDS,
        RUST_2021_INCOMPATIBLE_OR_PATTERNS,