| error[E0658]: async closures are unstable | |
| --> $DIR/feature-async-closure.rs:5:13 | |
| | | |
| LL | let _ = async || {}; | |
| | ^^^^^ | |
| | | |
| = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information | |
| = help: add `#![feature(async_closure)]` to the crate attributes to enable | |
| = help: to use an async block, remove the `||`: `async {` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0658`. |