How to debug future object

#1 
fn main(){
    let z = ok();
    println!("{:?}",z);
}


async fn ok(){
    println!("{:?}","~`|•");
    
}

(Playground)

#2

What do you want to to have printed out, exactly? You could do something like this I suppose, though IMO the Output type is the only arguably useful information... but generally you'll probably already know this too.