error: expected one of `.`, `;`, `?`, `else`, or an operator, found keyword `let` --> $DIR/missing-semicolon.rs:3:12 | LL | $( let x = $e1 )*; | ^^^ expected one of `.`, `;`, `?`, `else`, or an operator ... LL | fn main() { m!(0, 0; 0, 0); } | -------------- in this macro invocation | = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 1 previous error