It's idiomatically done with newline separators, e.g:

    let sum = vec_of_ints
        .iter()
        .filter(|x| x > 5)
        .map(|x| x.pow(2))
        .take(3)
        .sum()

That is, iterate my vec, only consider values > 5, square them, take the first 3, them sum them.

Consider the imperative code:

    let mut sum = 0;
    let mut n = 0;
    for x in vec_of_ints {
        if x > 5 {
            sum += x.pow(2);
            n += 1;
            if n == 3 {
                break;
            }
        }
    }

I think the chained combinator approach is much easier to see exactly what's happening (and is often higher performance!)