error: unneeded unit expression
  --> tests/ui/unused_unit.rs:35:9
   |
LL |         ()
   |         ^^ help: remove the final `()`
   |
note: the lint level is defined here
  --> tests/ui/unused_unit.rs:13:9
   |
LL | #![deny(clippy::unused_unit)]
   |         ^^^^^^^^^^^^^^^^^^^

error: unneeded unit expression
  --> tests/ui/unused_unit.rs:60:26
   |
LL | fn return_unit() -> () { () }
   |                          ^^ help: remove the final `()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:20:28
   |
LL |     pub fn get_unit<F: Fn() -> (), G>(&self, f: F, _g: G) -> ()
   |                            ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:23:18
   |
LL |     where G: Fn() -> () {
   |                  ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:20:58
   |
LL |     pub fn get_unit<F: Fn() -> (), G>(&self, f: F, _g: G) -> ()
   |                                                          ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:25:26
   |
LL |         let _y: &dyn Fn() -> () = &f;
   |                          ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:33:18
   |
LL |     fn into(self) -> () {
   |                  ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:41:29
   |
LL |     fn redundant<F: FnOnce() -> (), G, H>(&self, _f: F, _g: G, _h: H)
   |                             ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:44:19
   |
LL |         G: FnMut() -> (),
   |                   ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:46:16
   |
LL |         H: Fn() -> ();
   |                ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:51:29
   |
LL |     fn redundant<F: FnOnce() -> (), G, H>(&self, _f: F, _g: G, _h: H)
   |                             ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:54:19
   |
LL |         G: FnMut() -> (),
   |                   ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:56:16
   |
LL |         H: Fn() -> () {}
   |                ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:60:17
   |
LL | fn return_unit() -> () { () }
   |                 ^^^^^^ help: remove the `-> ()`

error: unneeded `()`
  --> tests/ui/unused_unit.rs:72:14
   |
LL |         break();
   |              ^^ help: remove the `()`

error: unneeded `()`
  --> tests/ui/unused_unit.rs:75:11
   |
LL |     return();
   |           ^^ help: remove the `()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:93:10
   |
LL | fn test()->(){}
   |          ^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:97:11
   |
LL | fn test2() ->(){}
   |           ^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:101:11
   |
LL | fn test3()-> (){}
   |           ^^^^^ help: remove the `-> ()`

error: aborting due to 19 previous errors