Exercises involving derive about rustlings HOT 2 CLOSED

How about an exercise involving implementing a trait and then contrasting that with the option to
#[derive(Trait)]

Something along the lines of:

use std::fmt;

struct Point {
    x: i32,
    y: i32,
}

impl fmt::Debug for Point {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "Point {{ x: {}, y: {} }}", self.x, self.y)
    }
}

let origin = Point { x: 0, y: 0 };

println!("The origin is: {:?}", origin);

vs

#[derive(Debug)]
struct Point {
    x: i32,
    y: i32,
}
let origin = Point { x: 0, y: 0 };

println!("The origin is: {:?}", origin);

from rustlings.

I don't know if the idea was to have more of these than what exists but https://github.com/carols10cents/rustlings/blob/master/ex3.rs already exists for this. It is a very minimal example to show off the very concept of #[derive(Debug)]. Unless there is a specific need for an issue just like this again, I feel like this could be closed.

from rustlings.