}
}
if !missing_literals.is_empty() {
- let mut err = cx.struct_span_err(missing_literals.clone(), "expected a byte literal");
+ let mut err = cx.struct_span_err(missing_literals, "expected a byte literal");
err.note("only byte literals (like `b\"foo\"`, `b's'`, and `[3, 4, 5]`) can be passed to `concat_bytes!()`");
err.emit();
return base::MacEager::expr(DummyResult::raw_expr(sp, true));