diff --git a/tests/compile_fail/as_mut/renamed_generic.stderr b/tests/compile_fail/as_mut/renamed_generic.stderr
index f0838843..190faaed 100644
--- a/tests/compile_fail/as_mut/renamed_generic.stderr
+++ b/tests/compile_fail/as_mut/renamed_generic.stderr
@@ -5,10 +5,7 @@ error[E0599]: the method `as_mut` exists for struct `Baz<i32>`, but its trait bo
    | ------------- doesn't satisfy `Foo<i32>: AsMut<Foo<i32>>`
 ...
 7  | struct Baz<T>(Foo<T>);
-   | -------------
-   | |
-   | method `as_mut` not found for this struct
-   | doesn't satisfy `Baz<i32>: AsMut<Foo<i32>>`
+   | ------------- method `as_mut` not found for this struct because it doesn't satisfy `Baz<i32>: AsMut<Foo<i32>>`
 ...
 11 |     let _: &mut Bar<i32> = item.as_mut();
    |                                 ^^^^^^ method cannot be called on `Baz<i32>` due to unsatisfied trait bounds
diff --git a/tests/compile_fail/as_ref/renamed_generic.stderr b/tests/compile_fail/as_ref/renamed_generic.stderr
index 22fd78a5..07311720 100644
--- a/tests/compile_fail/as_ref/renamed_generic.stderr
+++ b/tests/compile_fail/as_ref/renamed_generic.stderr
@@ -5,10 +5,7 @@ error[E0599]: the method `as_ref` exists for struct `Baz<i32>`, but its trait bo
    | ------------- doesn't satisfy `Foo<i32>: AsRef<Foo<i32>>`
 ...
 7  | struct Baz<T>(Foo<T>);
-   | -------------
-   | |
-   | method `as_ref` not found for this struct
-   | doesn't satisfy `Baz<i32>: AsRef<Foo<i32>>`
+   | ------------- method `as_ref` not found for this struct because it doesn't satisfy `Baz<i32>: AsRef<Foo<i32>>`
 ...
 11 |     let _: &Bar<i32> = item.as_ref();
    |                             ^^^^^^ method cannot be called on `Baz<i32>` due to unsatisfied trait bounds