1 files changed, 6 insertions, 1 deletions
diff --git a/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use.rs b/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use.rs
index 093c1c231..80462f8ac 100644
--- a/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use.rs
+++ b/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use.rs
@@ -7,7 +7,12 @@ fn main() {}
 // test that unused generic parameters are ok
 type TwoTys<T, U> = impl Debug;
 
-type TwoLifetimes<'a, 'b> = impl Debug;
+
+pub trait Captures<'a> {}
+
+impl<'a, T: ?Sized> Captures<'a> for T {}
+
+type TwoLifetimes<'a, 'b> = impl Debug + Captures<'a> + Captures<'b>;
 
 type TwoConsts<const X: usize, const Y: usize> = impl Debug;