error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:3:13 | LL | fn input(_: Option>) {} | ^^^^^^^^^^^^^^^^^^ | note: the lint level is defined here --> $DIR/option_option.rs:1:9 | LL | #![deny(clippy::option_option)] | ^^^^^^^^^^^^^^^^^^^^^ error: consider using `Option` instead of `Option>` or a custom enum if you need to distinguish all 3 cases --> $DIR/option_option.rs:5:16 | LL | 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:9:27 | LL | 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:14:30 | LL | 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:19:8 | LL | 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:23:23 | LL | 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:29:22 | LL | 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:33:11 | LL | 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:34:17 | LL | Struct { 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:75:14 | LL | foo: Option>>, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 10 previous errors