Wut? It's about as representative of Rust as writing FizzBuzz using Monads. In Java.

If you want production code look at Rust and Servo.

I wrote this as an exercise. This is specifically written to be point-free code without any if or match expressions.

    .unwrap_or_else(|| i.to_string().into())

this is the only one that was too ugly to make point-free