X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=compiler%2Frustc_trait_selection%2Fsrc%2Ftraits%2Ferror_reporting%2Fambiguity.rs;h=752b53fbc3f9a2011c5cfa90afc2e32d2fbfb8b0;hb=b6852428a8ea9728369b64b9964cad8e258403d3;hp=6a5744f5f762b7496ca957d3c55e5c41c0dcf01f;hpb=80b3c6dbde3ff89a44f8eaa63e08054398b30ecd;p=rust.git

diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs
index 6a5744f5f76..752b53fbc3f 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs
@@ -17,11 +17,11 @@ pub fn recompute_applicable_impls<'tcx>(
         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;