1 files changed, 11 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-2951.rs b/tests/ui/issues/issue-2951.rs
new file mode 100644
index 000000000..1798e3e75
--- /dev/null
+++ b/tests/ui/issues/issue-2951.rs
@@ -0,0 +1,11 @@
+fn foo<T, U>(x: T, y: U) {
+    let mut xx = x;
+    xx = y;
+    //~^  ERROR mismatched types
+    //~| expected type parameter `T`, found type parameter `U`
+    //~| expected type parameter `T`
+    //~| found type parameter `U`
+}
+
+fn main() {
+}