{"ast_node_type":"variable","tokens":[{"end":59,"kind":"keyword","start":0,"text":"let"}]}
                let root_hir_id = upvar_id.var_path.hir_id;
                let upvar = ty::place_to_string_for_capture(tcx, closure_kind_origin);
                // We have an origin for this closure kind starting at this root variable so it's