error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:10:13 | 10 | 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:12:16 | 12 | 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:16:27 | 16 | 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:21:30 | 21 | 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:26:8 | 26 | 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:30:23 | 30 | 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:36:22 | 36 | 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:40:11 | 40 | 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:41:17 | 41 | Struct { x: Option> }, | ^^^^^^^^^^^^^^^^^^ error: aborting due to 9 previous errors