{"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"RUST_2021_INCOMPATIBLE_OR_PATTERNS,"}]}
        RUST_2021_INCOMPATIBLE_OR_PATTERNS,
        RUST_2021_INCOMPATIBLE_CLOSURE_CAPTURES,
        RUST_2021_PREFIXES_INCOMPATIBLE_SYNTAX,