don't clone types that are copy (clippy::clone_on_copy)

rust-lang · Sep 10, 2020 · e11c667 · e11c667
1 parent e2a511f
commit e11c667
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/compiler/rustc_infer/src/infer/lub.rs b/compiler/rustc_infer/src/infer/lub.rs
@@ -50,7 +50,7 @@ impl TypeRelation<'tcx> for Lub<'combine, 'infcx, 'tcx> {
             ty::Invariant => self.fields.equate(self.a_is_expected).relate(a, b),
             ty::Covariant => self.relate(a, b),
             // FIXME(#41044) -- not correct, need test
-            ty::Bivariant => Ok(a.clone()),
+            ty::Bivariant => Ok(a),
             ty::Contravariant => self.fields.glb(self.a_is_expected).relate(a, b),
         }
     }