1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/marker_trait_attr/issue-61651-type-mismatch.rs b/src/test/ui/marker_trait_attr/issue-61651-type-mismatch.rs
new file mode 100644
index 000000000..0af706615
--- /dev/null
+++ b/src/test/ui/marker_trait_attr/issue-61651-type-mismatch.rs
@@ -0,0 +1,17 @@
+// check-pass
+// Regression test for issue #61651
+// Verifies that we don't try to constrain inference
+// variables due to the presence of multiple applicable
+// marker trait impls
+
+#![feature(marker_trait_attr)]
+
+#[marker] // Remove this line and it works?!?
+trait Foo<T> {}
+impl Foo<u16> for u8 {}
+impl Foo<[u8; 1]> for u8 {}
+fn foo<T: Foo<U>, U>(_: T) -> U { unimplemented!() }
+
+fn main() {
+    let _: u16 = foo(0_u8);
+}