FizzBuzz in Rust

fizzbuzz.rs

fn main() {
    (1..100)
        .filter(|&x| x % 3 == 0 || x % 5 == 0)
        .map(|x| {
            let mut str = String::new();
            if x % 3 == 0 {
               str.push_str("Fizz");
            }
            if x % 5 == 0 {
                str.push_str("Buzz");        
            }
            println!("{} {}", str, x);
            x
        })
        .collect::<Vec<i32>>();
}