1 files changed, 6 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-31511.rs b/tests/ui/issues/issue-31511.rs
new file mode 100644
index 000000000..53fecb016
--- /dev/null
+++ b/tests/ui/issues/issue-31511.rs
@@ -0,0 +1,6 @@
+fn cast_thin_to_fat(x: *const ()) {
+    x as *const [u8];
+    //~^ ERROR: cannot cast thin pointer `*const ()` to fat pointer `*const [u8]`
+}
+
+fn main() {}