#![feature(await_macro, async_await, futures_api)]

use std::future::Future;
use std::sync::Mutex;
use std::sync::Arc;
use tokio::{runtime::Runtime};

async fn do_nothing() {
    
}

async fn foo(count: Arc<Mutex<u32>>) {
    let mut x = count.lock().unwrap();
    *x += 1;
    await!(do_nothing());
   
}

fn main() {
    let runtime = Runtime::new().unwrap();
    let executor = runtime.executor();
    let x = Arc::new(Mutex::new(0));
    executor.spawn(foo(x.clone()));
}