{"ast_node_type":"variable","tokens":[{"end":55,"kind":"keyword","start":0,"text":"let"}]}
                    let span = find_span(&source, err);
                PathSource::Expr(_) | PathSource::TupleStruct(..) | PathSource::Pat => {
                    err.span_label(this.r.def_span(def_id), format!("`{path_str}` defined here"));