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error[E0670]: `async fn` is not permitted in Rust 2015
--> $DIR/async_gen_fn.rs:4:1
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LL | async gen fn foo() {}
| ^^^^^ to use `async fn`, switch to Rust 2018 or later
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= help: pass `--edition 2021` to `rustc`
= note: for more on editions, read https://doc.rust-lang.org/edition-guide
error: expected one of `extern`, `fn`, or `unsafe`, found `gen`
--> $DIR/async_gen_fn.rs:4:7
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LL | async gen fn foo() {}
| ^^^ expected one of `extern`, `fn`, or `unsafe`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0670`.
|
