error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> tests/ui/question-mark-await-type-error.rs:16:9
   |
16 |         async {}.await?; //~ ERROR the `?` operator can only be applied to values that implement `std::ops::Try`
   |         ^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `()`
   |
   = help: the trait `Try` is not implemented for `()`

error[E0277]: the `?` operator can only be used in an async function that returns `Result` or `Option` (or another type that implements `FromResidual`)
  --> tests/ui/question-mark-await-type-error.rs:16:23
   |
14 |   async fn async_fn() {
   |  _____________________-
15 | |     for _i in 1..2 {
16 | |         async {}.await?; //~ ERROR the `?` operator can only be applied to values that implement `std::ops::Try`
   | |                       ^ cannot use the `?` operator in an async function that returns `()`
17 | |     }
18 | | }
   | |_- this function should return `Result` or `Option` to accept `?`
   |
   = help: the trait `FromResidual<_>` is not implemented for `()`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> tests/ui/question-mark-await-type-error.rs:23:18
   |
23 |         async {}.await?; //~ ERROR the `?` operator can only be applied to values that implement `std::ops::Try`
   |                  ^^^^^^ the `?` operator cannot be applied to type `()`
   |
   = help: the trait `Try` is not implemented for `()`

error[E0277]: the `?` operator can only be used in a coroutine that returns `Result` or `Option` (or another type that implements `FromResidual`)
  --> tests/ui/question-mark-await-type-error.rs:23:23
   |
20 | #[stream(item = i32)]
   | --------------------- this function should return `Result` or `Option` to accept `?`
...
23 |         async {}.await?; //~ ERROR the `?` operator can only be applied to values that implement `std::ops::Try`
   |                       ^ cannot use the `?` operator in a coroutine that returns `()`
   |
   = help: the trait `FromResidual<_>` is not implemented for `()`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> tests/ui/question-mark-await-type-error.rs:30:9
   |
30 |         async {}.await?; //~ ERROR the `?` operator can only be applied to values that implement `std::ops::Try`
   |         ^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `()`
   |
   = help: the trait `Try` is not implemented for `()`

error[E0277]: the `?` operator can only be used in an async function that returns `Result` or `Option` (or another type that implements `FromResidual`)
  --> tests/ui/question-mark-await-type-error.rs:30:23
   |
27 |   async fn async_fn_and_for_await() {
   |  ___________________________________-
28 | |     #[for_await]
29 | |     for _i in stream(2) {
30 | |         async {}.await?; //~ ERROR the `?` operator can only be applied to values that implement `std::ops::Try`
   | |                       ^ cannot use the `?` operator in an async function that returns `()`
31 | |     }
32 | | }
   | |_- this function should return `Result` or `Option` to accept `?`
   |
   = help: the trait `FromResidual<_>` is not implemented for `()`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> tests/ui/question-mark-await-type-error.rs:38:18
   |
38 |         async {}.await?; //~ ERROR the `?` operator can only be applied to values that implement `std::ops::Try`
   |                  ^^^^^^ the `?` operator cannot be applied to type `()`
   |
   = help: the trait `Try` is not implemented for `()`

error[E0277]: the `?` operator can only be used in a coroutine that returns `Result` or `Option` (or another type that implements `FromResidual`)
  --> tests/ui/question-mark-await-type-error.rs:38:23
   |
34 | #[stream(item = i32)]
   | --------------------- this function should return `Result` or `Option` to accept `?`
...
38 |         async {}.await?; //~ ERROR the `?` operator can only be applied to values that implement `std::ops::Try`
   |                       ^ cannot use the `?` operator in a coroutine that returns `()`
   |
   = help: the trait `FromResidual<_>` is not implemented for `()`