Errors aren't shown to user

In [this gist](https://gist.github.com/skeleten/761f7c13792b4ee104c85a2fe8669785) the "explicit panic" is from a `fail` helper method that prints out the message. As you can see however, the actual message isn't show to the user. This kinda makes it hard to know what the error was.

The message should probably be printed to stderr, not stdout, anyway.
