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-rw-r--r--tests/ui/index_message.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/ui/index_message.rs b/tests/ui/index_message.rs
new file mode 100644
index 00000000000..87e0cde5919
--- /dev/null
+++ b/tests/ui/index_message.rs
@@ -0,0 +1,4 @@
+fn main() {
+    let z = ();
+    let _ = z[0]; //~ ERROR cannot index into a value of type `()`
+}