Deadlock

deadlock.rs

let resource_one = Arc::new(Mutex::new(10));
let resource_two = Arc::new(Mutex::new(20));

let r1 = resource_one.clone();
let r2 = resource_two.clone();
let th1 = thread::spawn(move || {
    let mut r2 = r2.lock().unwrap();
    thread::sleep(Duration::from_secs(5));
    let mut r1 = r1.lock().unwrap();
    *r1 += 1;
    *r2 += 5;

    println!("th1: have got both r1: {}, and r2 {}", r1, r2);
});

let r1 = resource_one.clone();
let r2 = resource_two.clone();
let th2 = thread::spawn(move || {
    let mut r1 = r1.lock().unwrap();
    thread::sleep(Duration::from_secs(5));
    let mut r2 = r2.lock().unwrap();

    *r1 += 2;
    *r2 += 3;

    println!("th2: have got both r1: {}, and r2 {}", r1, r2);
});

th1.join().unwrap();
th2.join().unwrap();