3 files changed, 12 insertions, 4 deletions
diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs
index 5fa1bf51634..040264586f6 100644
--- a/compiler/rustc_infer/src/infer/mod.rs
+++ b/compiler/rustc_infer/src/infer/mod.rs
@@ -776,7 +776,7 @@ impl<'tcx> InferCtxt<'tcx> {
         definition_span: Span,
         hidden_ty: Ty<'tcx>,
         region: ty::Region<'tcx>,
-        in_regions: &Lrc<Vec<ty::Region<'tcx>>>,
+        in_regions: Lrc<Vec<ty::Region<'tcx>>>,
     ) {
         self.inner.borrow_mut().unwrap_region_constraints().member_constraint(
             key,
diff --git a/compiler/rustc_infer/src/infer/opaque_types/mod.rs b/compiler/rustc_infer/src/infer/opaque_types/mod.rs
index 55c51bc856f..ba0a9b14ccb 100644
--- a/compiler/rustc_infer/src/infer/opaque_types/mod.rs
+++ b/compiler/rustc_infer/src/infer/opaque_types/mod.rs
@@ -359,7 +359,15 @@ impl<'tcx> InferCtxt<'tcx> {
         // not currently sound until we have existential regions.
         concrete_ty.visit_with(&mut ConstrainOpaqueTypeRegionVisitor {
             tcx: self.tcx,
-            op: |r| self.member_constraint(opaque_type_key, span, concrete_ty, r, &choice_regions),
+            op: |r| {
+                self.member_constraint(
+                    opaque_type_key,
+                    span,
+                    concrete_ty,
+                    r,
+                    choice_regions.clone(),
+                )
+            },
         });
     }
 }
diff --git a/compiler/rustc_infer/src/infer/region_constraints/mod.rs b/compiler/rustc_infer/src/infer/region_constraints/mod.rs
index 82f7668b2d2..f22cfed0b71 100644
--- a/compiler/rustc_infer/src/infer/region_constraints/mod.rs
+++ b/compiler/rustc_infer/src/infer/region_constraints/mod.rs
@@ -522,7 +522,7 @@ impl<'tcx> RegionConstraintCollector<'_, 'tcx> {
         definition_span: Span,
         hidden_ty: Ty<'tcx>,
         member_region: ty::Region<'tcx>,
-        choice_regions: &Lrc<Vec<ty::Region<'tcx>>>,
+        choice_regions: Lrc<Vec<ty::Region<'tcx>>>,
     ) {
         debug!("member_constraint({:?} in {:#?})", member_region, choice_regions);
 
@@ -535,7 +535,7 @@ impl<'tcx> RegionConstraintCollector<'_, 'tcx> {
             definition_span,
             hidden_ty,
             member_region,
-            choice_regions: choice_regions.clone(),
+            choice_regions,
         });
     }