{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"desc"}]}
        desc { |tcx| "building specialization graph of trait `{}`", tcx.def_path_str(trait_id) }
    query specialization_graph_of(trait_id: DefId) -> Result<&'tcx specialization_graph::Graph, ErrorGuaranteed> {
        cache_on_disk_if { true }