This line is just the same as in the Hello, World example. (In fact, the Hello, World example had a latent version of the same bug. It compiled because we never tried to do anything with argv, and thus never tried to do anything that violated the place rules with it.)
2 class HelloWorld {
3 public static def main(argv:Rail[String]) {
4 x10.io.Console.OUT.println("Hello, World");
5 }
6 }
...ayfkm?
You've already failed.