1 files changed, 6 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-37534.rs b/tests/ui/issues/issue-37534.rs
new file mode 100644
index 000000000..1e67e9a81
--- /dev/null
+++ b/tests/ui/issues/issue-37534.rs
@@ -0,0 +1,6 @@
+struct Foo<T: ?Hash> { }
+//~^ ERROR expected trait, found derive macro `Hash`
+//~^^ ERROR parameter `T` is never used
+//~^^^ WARN default bound relaxed for a type parameter, but this does nothing
+
+fn main() { }