1 files changed, 2 insertions, 2 deletions
diff --git a/compiler/rustc_typeck/src/collect.rs b/compiler/rustc_typeck/src/collect.rs
index a0cbb7c2c5a..696d8db4e20 100644
--- a/compiler/rustc_typeck/src/collect.rs
+++ b/compiler/rustc_typeck/src/collect.rs
@@ -393,7 +393,7 @@ impl<'tcx> AstConv<'tcx> for ItemCtxt<'tcx> {
     }
 
     fn ct_infer(&self, ty: Ty<'tcx>, _: Option<&ty::GenericParamDef>, span: Span) -> Const<'tcx> {
-        let ty = self.tcx.fold_regions(ty, |r, _| match *r {
+        let ty = self.tcx.fold_regions(ty, &mut false, |r, _| match *r {
             ty::ReErased => self.tcx.lifetimes.re_static,
             _ => r,
         });
@@ -1917,7 +1917,7 @@ fn infer_return_ty_for_fn_sig<'tcx>(
         Some(ty) => {
             let fn_sig = tcx.typeck(def_id).liberated_fn_sigs()[hir_id];
             // Typeck doesn't expect erased regions to be returned from `type_of`.
-            let fn_sig = tcx.fold_regions(fn_sig, |r, _| match *r {
+            let fn_sig = tcx.fold_regions(fn_sig, &mut false, |r, _| match *r {
                 ty::ReErased => tcx.lifetimes.re_static,
                 _ => r,
             });