error: invalid base prefix for number literal
  --> $DIR/failed-to-reparse-issue-137874.rs:11:8
   |
LL |     m!(0X0);
   |        ^^^ help: try making the prefix lowercase (notice the capitalization): `0x0`
   |
   = note: base prefixes (`0xff`, `0b1010`, `0o755`) are lowercase

error: aborting due to 1 previous error