use std::cmp::Reverse;

#[derive(PartialEq)]
struct Thing {
    name: String,
    score: u8,
}

impl Thing {
    fn new(name: String, score: u8) -> Self {
        Thing { name, score }
    }
}

fn main() {
    let names = vec!["e", "d", "c", "b", "a"];
    let scores = vec![4, 5, 5, 3, 7];

    let mut things = names
        .into_iter()
        .zip(scores.into_iter())
        .map(|(n, s)| Thing::new(n.to_owned(), s))
        .collect::<Vec<_>>();

    things.sort_by_key(|ref thing| (thing.name, Reverse(thing.score)))
}