{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"//"}]}
        // in where clauses. After that, only `self.check_attributes` should be enough.
        // if we allow more attributes (e.g., tool attributes and `allow/deny/warn`)
        const ATTRS_ALLOWED: &[Symbol] = &[sym::cfg_trace, sym::cfg_attr_trace];