| error[E0670]: `async fn` is not permitted in Rust 2015 |
| --> $DIR/async_gen_fn.rs:4:1 |
| | |
| LL | async gen fn foo() {} |
| | ^^^^^ to use `async fn`, switch to Rust 2018 or later |
| | |
| = help: pass `--edition 2024` to `rustc` |
| = note: for more on editions, read https://doc.rust-lang.org/edition-guide |
| |
| error: expected one of `extern`, `fn`, `safe`, or `unsafe`, found `gen` |
| --> $DIR/async_gen_fn.rs:4:7 |
| | |
| LL | async gen fn foo() {} |
| | ^^^ expected one of `extern`, `fn`, `safe`, or `unsafe` |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0670`. |