LL | Struct { x: Option<Option<u8>> },
| ^^^^^^^^^^^^^^^^^^
-error: aborting due to 9 previous errors
+error: consider using `Option<T>` instead of `Option<Option<T>>` or a custom enum if you need to distinguish all 3 cases
+ --> $DIR/option_option.rs:77:14
+ |
+LL | foo: Option<Option<Cow<'a, str>>>,
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 10 previous errors