{"ast_node_type":"variable","tokens":[{"end":55,"kind":"keyword","start":0,"text":"let"}]}
            let err = CyclicDependenciesError { path };
                path.into_iter().map(|it| (it, self[it].extra.display_name.clone())).collect();
            assert!(err.from().0 == from && err.to().0 == dep.crate_id);