1error: missing fragment specifier 2 --> $DIR/issue-39404.rs:3:19 3 | 4LL | macro_rules! m { ($i) => {} } 5 | ^^ 6 | 7 = note: `#[deny(missing_fragment_specifier)]` on by default 8 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! 9 = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107> 10 11error: aborting due to previous error 12 13