1 files changed, 8 insertions, 0 deletions
diff --git a/src/test/ui/rfc-2632-const-trait-impl/impl-opt-out-trait.stderr b/src/test/ui/rfc-2632-const-trait-impl/impl-opt-out-trait.stderr
new file mode 100644
index 00000000000..8f923efb093
--- /dev/null
+++ b/src/test/ui/rfc-2632-const-trait-impl/impl-opt-out-trait.stderr
@@ -0,0 +1,8 @@
+error: expected a trait, found type
+  --> $DIR/impl-opt-out-trait.rs:8:6
+   |
+LL | impl ?const T for S {}
+   |      ^^^^^^^^
+
+error: aborting due to previous error
+