1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/issue-66451.rs b/src/test/ui/const-generics/issue-66451.rs
new file mode 100644
index 000000000..3335f7d59
--- /dev/null
+++ b/src/test/ui/const-generics/issue-66451.rs
@@ -0,0 +1,28 @@
+#![feature(adt_const_params)]
+#![allow(incomplete_features)]
+
+#[derive(Debug, PartialEq, Eq)]
+struct Foo {
+    value: i32,
+    nested: &'static Bar<i32>,
+}
+
+#[derive(Debug, PartialEq, Eq)]
+struct Bar<T>(T);
+
+struct Test<const F: Foo>;
+
+fn main() {
+    let x: Test<{
+        Foo {
+            value: 3,
+            nested: &Bar(4),
+        }
+    }> = Test;
+    let y: Test<{
+        Foo {
+            value: 3,
+            nested: &Bar(5),
+        }
+    }> = x; //~ ERROR mismatched types
+}