{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"e.span_label(path.span,"}]}
            e.span_label(path.span, "while parsing the fields for this pattern");
        let (fields, etc) = self.parse_pat_fields().unwrap_or_else(|mut e| {
            let guar = e.emit();