1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/issue-68368-non-defining-use.rs b/src/test/ui/type-alias-impl-trait/issue-68368-non-defining-use.rs
new file mode 100644
index 000000000..b50462bf2
--- /dev/null
+++ b/src/test/ui/type-alias-impl-trait/issue-68368-non-defining-use.rs
@@ -0,0 +1,14 @@
+// Regression test for issue #68368
+// Ensures that we don't ICE when emitting an error
+// for a non-defining use when lifetimes are involved
+
+#![feature(type_alias_impl_trait)]
+trait Trait<T> {}
+type Alias<'a, U> = impl Trait<U>;
+
+fn f<'a>() -> Alias<'a, ()> {}
+//~^ ERROR non-defining opaque type use in defining scope
+
+fn main() {}
+
+impl Trait<()> for () {}