{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"debug!(\"create_def:"}]}
            debug!("create_def: def_id_to_node_id[{:?}] <-> {:?}", def_id, node_id);
        if node_id != ast::DUMMY_NODE_ID {
            self.node_id_to_def_id.insert(node_id, feed.downgrade());