src/tools/clippy/tests/ui/option_option.stderr

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:4:10
   |
LL | const C: Option<Option<i32>> = None;
   |          ^^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<i32>`, or a custom enum if you need to distinguish all 3 cases
   = note: `-D clippy::option-option` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::option_option)]`

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:6:11
   |
LL | static S: Option<Option<i32>> = None;
   |           ^^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<i32>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:9:13
   |
LL | fn input(_: Option<Option<u8>>) {}
   |             ^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<u8>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:12:16
   |
LL | fn output() -> Option<Option<u8>> {
   |                ^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<u8>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:17:27
   |
LL | fn output_nested() -> Vec<Option<Option<u8>>> {
   |                           ^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<u8>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:23:30
   |
LL | fn output_nested_nested() -> Option<Option<Option<u8>>> {
   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<Option<u8>>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:29:8
   |
LL |     x: Option<Option<u8>>,
   |        ^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<u8>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:34:23
   |
LL |     fn struct_fn() -> Option<Option<u8>> {
   |                       ^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<u8>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:41:22
   |
LL |     fn trait_fn() -> Option<Option<u8>>;
   |                      ^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<u8>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:46:11
   |
LL |     Tuple(Option<Option<u8>>),
   |           ^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<u8>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:48:17
   |
LL |     Struct { x: Option<Option<u8>> },
   |                 ^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<u8>`, or a custom enum if you need to distinguish all 3 cases

error: use of `Option<Option<T>>`
  --> tests/ui/option_option.rs:90:14
   |
LL |         foo: Option<Option<Cow<'a, str>>>,
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider using `Option<Cow<'a, str>>`, or a custom enum if you need to distinguish all 3 cases

error: aborting due to 12 previous errors