fix: change where TaskHandle is borrowed to prevent repeat output fetches

benches/comparisons/deep_chain.rs

@@ -20,19 +20,19 @@ pub fn bench_deep_chain(c: &mut Criterion) {
                 let first = dag.add_task(task_fn::<(), _, _>(|_: ()| 0));
                 let mut prev = dag
                     .add_task(task_fn::<i32, _, _>(|&x: &i32| x + 1))
-                    .depends_on(first);
+                    .depends_on(&first);
 
                 for i in 2..100 {
                     prev = dag
                         .add_task(task_fn::<i32, _, _>(move |&x: &i32| x + i))
-                        .depends_on(prev);
+                        .depends_on(&prev);
                 }
 
                 let mut output = dag
                     .run(|fut| async move { tokio::spawn(fut).await.unwrap() })
                     .await
                     .unwrap();
-                output.get(prev).unwrap()
+                output.get(prev)
             })
         });
     });