let placeholder_obligation =
infcx.replace_bound_vars_with_placeholders(obligation.predicate);
let obligation_trait_ref =
- ocx.normalize(dummy_cause.clone(), param_env, placeholder_obligation.trait_ref);
+ ocx.normalize(&dummy_cause, param_env, placeholder_obligation.trait_ref);
let impl_substs = infcx.fresh_substs_for_item(DUMMY_SP, impl_def_id);
let impl_trait_ref = tcx.bound_impl_trait_ref(impl_def_id).unwrap().subst(tcx, impl_substs);
- let impl_trait_ref = ocx.normalize(ObligationCause::dummy(), param_env, impl_trait_ref);
+ let impl_trait_ref = ocx.normalize(&ObligationCause::dummy(), param_env, impl_trait_ref);
if let Err(_) = ocx.eq(&dummy_cause, param_env, obligation_trait_ref, impl_trait_ref) {
return false;