1 error: missing fragment specifier
2 --> $DIR/issue-39404.rs:3:19
4 LL | macro_rules! m { ($i) => {} }
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>
11 error: aborting due to previous error