error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:1:13 | 1 | fn input(_: Option>) { | ^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::option-option` implied by `-D warnings` error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:4:16 | 4 | fn output() -> Option> { | ^^^^^^^^^^^^^^^^^^ error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:8:27 | 8 | fn output_nested() -> Vec>> { | ^^^^^^^^^^^^^^^^^^ error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:13:30 | 13 | fn output_nested_nested() -> Option>> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^ error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:18:8 | 18 | x: Option>, | ^^^^^^^^^^^^^^^^^^ error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:22:23 | 22 | fn struct_fn() -> Option> { | ^^^^^^^^^^^^^^^^^^ error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:28:22 | 28 | fn trait_fn() -> Option>; | ^^^^^^^^^^^^^^^^^^ error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:32:11 | 32 | Tuple(Option>), | ^^^^^^^^^^^^^^^^^^ error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:33:15 | 33 | Struct{x: Option>}, | ^^^^^^^^^^^^^^^^^^ error: aborting due to 9 previous errors