1 files changed, 20 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-17999.stderr b/src/test/ui/issues/issue-17999.stderr
new file mode 100644
index 000000000..4a1ef7350
--- /dev/null
+++ b/src/test/ui/issues/issue-17999.stderr
@@ -0,0 +1,20 @@
+error: unused variable: `x`
+  --> $DIR/issue-17999.rs:5:13
+   |
+LL |         let x = ();
+   |             ^ help: if this is intentional, prefix it with an underscore: `_x`
+   |
+note: the lint level is defined here
+  --> $DIR/issue-17999.rs:1:9
+   |
+LL | #![deny(unused_variables)]
+   |         ^^^^^^^^^^^^^^^^
+
+error: unused variable: `a`
+  --> $DIR/issue-17999.rs:7:13
+   |
+LL |             a => {}
+   |             ^ help: if this is intentional, prefix it with an underscore: `_a`
+
+error: aborting due to 2 previous errors
+