{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":".map_err(|e|"}]}
                            .map_err(|e| MatchFailureReason {
                        matched: matching::get_match(true, rule, &node, restrict_range, &self.sema)
                                reason: e.reason.unwrap_or_else(|| {