{"ast_node_type":"other","tokens":[{"end":18,"kind":"keyword","start":0,"text":".unwrap();"}]}
        .unwrap();
    writeln!(out, "For example, rustc -C target-cpu=mycpu -C target-feature=+feature1,-feature2\n")
    writeln!(out, "Code-generation features cannot be used in cfg or #[target_feature],").unwrap();