1 error: expected identifier, found keyword `async`
2 --> $DIR/edition-keywords-2015-2018-expansion.rs:8:5
4 LL | produces_async! {}
5 | ^^^^^^^^^^^^^^^^^^ expected identifier, found keyword
7 = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
8 help: you can escape reserved keywords to use them as identifiers
10 LL | () => (pub fn r#async() {})
13 error: aborting due to previous error