{"ast_node_type":"variable","tokens":[{"end":99,"kind":"keyword","start":0,"text":"let"}]}
                let dep_node = DepNode::from_label_string(self.tcx, label, def_path_hash).unwrap();
            for label in assertion.dirty.items().into_sorted_stable_ord() {
                self.assert_dirty(item_span, dep_node);