Fizz Buzz rules here: https://en.m.wikipedia.org/wiki/Fizz_buzz https://en.m.wikipedia.org/wiki/Fizz_buzz Rules for actually using this crate: Don't :-). That

Fizz Buzz rules here: https://en.m.wikipedia.org/wiki/Fizz_buzz https://en.m.wikipedia.org/wiki/Fizz_buzz Rules for actually using this crate: Don't :-). That said, there are legitimate reasons to implement things at compile time. It means that libraries can create very efficient code that you don't have to write. But like all of powerful capabilities you should beware of misusing them. Like this :-).