First Rust tests

test

// Here it doesn't warn about x not being read.

fn main() {
	let x = 5i;
	
	let y = x;

	println!("{}",y);
}

// 5



// Here it does warn. Why editing x after referencing it by y makes the difference that it throws warning?

fn main() {
	let mut x = 5i;
	
	let y = x;

	x = 0;

	println!("{}",y);
}

// warning: value assigned to `x` is never read, #[warn(unused_assignments)] on by default
// 5