error: error tag 'error.NotInSet' is not in error set 'ParseErr'
  --> examples/1003-errors-raise-rejections.sx:17:11
   |
17 |     raise error.NotInSet;            // error: NotInSet not in ParseErr
   |           ^^^^^^^^^^^^^^

error: error tag 'error.Weird' is not in caller's error set 'ParseErr'
  --> examples/1003-errors-raise-rejections.sx:24:5
   |
24 |     raise e;                         // error: OtherErr not subset of ParseErr
   |     ^^^^^^^^

error: `raise` is only valid inside a failable function (a return type with `!` or `!Named`)
  --> examples/1003-errors-raise-rejections.sx:30:5
   |
30 |     raise error.BadDigit;            // error: main (-> i32) is not failable
   |     ^^^^^^^^^^^^^^^^^^^^^