This compiles

It dies at runtime, but that's fine, we're not running it.

doc/Language/operators.pod6

@@ -2814,7 +2814,7 @@ For instance, union of an empty list will return an empty set:
 This only applies to operators where empty or 0 is always a valid operand. For
 instance, applying it to division will yield an exception.
 
-=for code :skip-test<Illustrates exception>
+=for code
 say [%] ();# OUTPUT: «(exit code 1) No zero-arg meaning for infix:<%>␤
 
 =end pod