scope-closure.rs

    let stream = pinger.and_then(move |pinger| Ok(pinger.chain(ip).stream()));
    let future = stream.and_then(|stream| {
        stream.take(1).for_each(|mb_time| {
            match mb_time {
                Some(time) => {
                    // I need to capture this data (Duration) and get it back to the main scope
                    println!("Time => {:?}", time);
                }
                None => println!("timeout"),
            }
            Ok(())
        })
    });
    tokio::run(future.map_err(|err| eprintln!("Error: {}", err)))
    // I need `time` results in this scope