error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:6:1
   |
LL | fn fut() -> impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D clippy::manual-async-fn` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::manual_async_fn)]`
help: make the function `async` and return the output of the future directly
   |
LL - fn fut() -> impl Future {
LL + async fn fut() -> i32 { 42 }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:12:1
   |
LL | fn fut2() ->impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - fn fut2() ->impl Future {
LL + async fn fut2() -> i32 { 42 }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:18:1
   |
LL | fn fut3()-> impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - fn fut3()-> impl Future {
LL + async fn fut3() -> i32 { 42 }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:23:1
   |
LL | fn empty_fut() -> impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - fn empty_fut() -> impl Future {
LL + async fn empty_fut() {}
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:29:1
   |
LL | fn empty_fut2() ->impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - fn empty_fut2() ->impl Future {
LL + async fn empty_fut2() {}
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:35:1
   |
LL | fn empty_fut3()-> impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - fn empty_fut3()-> impl Future {
LL + async fn empty_fut3() {}
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:40:1
   |
LL | fn core_fut() -> impl core::future::Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - fn core_fut() -> impl core::future::Future {
LL + async fn core_fut() -> i32 { 42 }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:63:5
   |
LL |     fn inh_fut() -> impl Future {
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL ~     async fn inh_fut() -> i32 {
LL +         // NOTE: this code is here just to check that the indentation is correct in the suggested fix
LL +         let a = 42;
LL +         let b = 21;
LL +         if a < b {
LL +             let c = 21;
LL +             let d = 42;
LL +             if c < d {
LL +                 let _ = 42;
LL +             }
LL +         }
LL +         42
LL +     }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:99:1
   |
LL | fn elided(_: &i32) -> impl Future + '_ {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - fn elided(_: &i32) -> impl Future + '_ {
LL + async fn elided(_: &i32) -> i32 { 42 }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:110:1
   |
LL | fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> impl Future + 'a + 'b {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> impl Future + 'a + 'b {
LL + async fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> i32 { 42 }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:140:1
   |
LL | pub fn issue_10450() -> impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - pub fn issue_10450() -> impl Future {
LL + pub async fn issue_10450() -> i32 { 42 }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:145:1
   |
LL | pub(crate) fn issue_10450_2() -> impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - pub(crate) fn issue_10450_2() -> impl Future {
LL + pub(crate) async fn issue_10450_2() -> i32 { 42 }
   |

error: this function can be simplified using the `async fn` syntax
  --> tests/ui/manual_async_fn.rs:150:1
   |
LL | pub(self) fn issue_10450_3() -> impl Future {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: make the function `async` and return the output of the future directly
   |
LL - pub(self) fn issue_10450_3() -> impl Future {
LL + pub(self) async fn issue_10450_3() -> i32 { 42 }
   |

error: aborting due to 13 previous errors

