| #### Note: this error code is no longer emitted by the compiler. | |
| `async` non-`move` closures with parameters are currently not supported. | |
| Erroneous code example: | |
| ```edition2018 | |
| #![feature(async_closure)] | |
| fn main() { | |
| let add_one = async |num: u8| { | |
| num + 1 | |
| }; | |
| } | |
| ``` | |
| `async` with non-move is currently not supported with the current | |
| version, you can use successfully by using move: | |
| ```edition2018 | |
| #![feature(async_closure)] | |
| fn main() { | |
| let add_one = async move |num: u8| { // ok! | |
| num + 1 | |
| }; | |
| } | |
| ``` |