{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"ecx.probe_builtin_trait_candidate(BuiltinImplSource::Misc).enter(|ecx|"}]}
                    ecx.probe_builtin_trait_candidate(BuiltinImplSource::Misc).enter(|ecx| {
                let alias_bound_result =
                        let sized_predicate = ty::TraitRef::new(