{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"desc"}]}
        desc { |tcx| "type-checking `{}`", tcx.def_path_str(key) }
    query typeck(key: LocalDefId) -> &'tcx ty::TypeckResults<'tcx> {
        cache_on_disk_if(tcx) { !tcx.is_typeck_child(key.to_def_id()) }