| error: missing fragment specifier | |
| --> $DIR/issue-39404.rs:3:19 | |
| | | |
| LL | macro_rules! m { ($i) => {} } | |
| | ^^ | |
| | | |
| = note: `#[deny(missing_fragment_specifier)]` on by default | |
| = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
| = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107> | |
| error: aborting due to previous error | |