error: unneeded unit expression
  --> tests/ui/unused_unit.rs:37:9
   |
LL |         ()
   |         ^^ help: remove the final `()`
   |
note: the lint level is defined here
  --> tests/ui/unused_unit.rs:15:9
   |
LL | #![deny(clippy::unused_unit)]
   |         ^^^^^^^^^^^^^^^^^^^

error: unneeded unit expression
  --> tests/ui/unused_unit.rs:62:26
   |
LL | fn return_unit() -> () { () }
   |                          ^^ help: remove the final `()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:22:28
   |
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:25:18
   |
LL |     where G: Fn() -> () {
   |                  ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:22:58
   |
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:27:26
   |
LL |         let _y: &dyn Fn() -> () = &f;
   |                          ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:35:18
   |
LL |     fn into(self) -> () {
   |                  ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:43:29
   |
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:46:19
   |
LL |         G: FnMut() -> (),
   |                   ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:48:16
   |
LL |         H: Fn() -> ();
   |                ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:53:29
   |
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:56:19
   |
LL |         G: FnMut() -> (),
   |                   ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:58:16
   |
LL |         H: Fn() -> () {}
   |                ^^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:62:17
   |
LL | fn return_unit() -> () { () }
   |                 ^^^^^^ help: remove the `-> ()`

error: unneeded `()`
  --> tests/ui/unused_unit.rs:74:14
   |
LL |         break();
   |              ^^ help: remove the `()`

error: unneeded `()`
  --> tests/ui/unused_unit.rs:77:11
   |
LL |     return();
   |           ^^ help: remove the `()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:95:10
   |
LL | fn test()->(){}
   |          ^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:99:11
   |
LL | fn test2() ->(){}
   |           ^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:103:11
   |
LL | fn test3()-> (){}
   |           ^^^^^ help: remove the `-> ()`

error: unneeded unit return type
  --> tests/ui/unused_unit.rs:131:13
   |
LL |     fn bar() -> () {
   |             ^^^^^^ help: remove the `-> ()`

error: aborting due to 20 previous errors