1 files changed, 4 insertions, 4 deletions
diff --git a/src/librustc_mir/borrow_check/nll/invalidation.rs b/src/librustc_mir/borrow_check/nll/invalidation.rs
index 8af23a8813a..07bda8af626 100644
--- a/src/librustc_mir/borrow_check/nll/invalidation.rs
+++ b/src/librustc_mir/borrow_check/nll/invalidation.rs
@@ -99,7 +99,7 @@ impl<'cx, 'tcx, 'gcx> Visitor<'tcx> for InvalidationGenerator<'cx, 'tcx, 'gcx> {
                 self.mutate_place(
                     ContextKind::SetDiscrim.new(location),
                     place,
-                    Shallow(Some(ArtificialField::Discriminant)),
+                    Shallow(None),
                     JustWrite,
                 );
             }
@@ -360,14 +360,14 @@ impl<'cg, 'cx, 'tcx, 'gcx> InvalidationGenerator<'cx, 'tcx, 'gcx> {
 
             Rvalue::Len(ref place) | Rvalue::Discriminant(ref place) => {
                 let af = match *rvalue {
-                    Rvalue::Len(..) => ArtificialField::ArrayLength,
-                    Rvalue::Discriminant(..) => ArtificialField::Discriminant,
+                    Rvalue::Len(..) => Some(ArtificialField::ArrayLength),
+                    Rvalue::Discriminant(..) => None,
                     _ => unreachable!(),
                 };
                 self.access_place(
                     context,
                     place,
-                    (Shallow(Some(af)), Read(ReadKind::Copy)),
+                    (Shallow(af), Read(ReadKind::Copy)),
                     LocalMutationIsAllowed::No,
                 );
             }