I'm not sure how that's supposed to work. For example, you have `file.read_to_string`, but in your code, `file` is a `Result`. So you'll need to use `map` I pre

I'm not sure how that's supposed to work. For example, you have `file.read_to_string`, but in your code, `file` is a `Result`. So you'll need to use `map` I presume. I personally like the style that `try!` encourages.