1 files changed, 9 insertions, 0 deletions
diff --git a/tests/ui/traits/test.stderr b/tests/ui/traits/test.stderr
new file mode 100644
index 00000000000..668228abe09
--- /dev/null
+++ b/tests/ui/traits/test.stderr
@@ -0,0 +1,9 @@
+error[E0404]: expected trait, found builtin type `isize`
+  --> $DIR/test.rs:4:6
+   |
+LL | impl isize for usize { fn foo(&self) {} }
+   |      ^^^^^ not a trait
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0404`.