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

benches/patterns/diamond.rs

@@ -16,13 +16,13 @@ pub fn bench_diamond(c: &mut Criterion) {
 
                     let left = dag
                         .add_task(task_fn::<i32, _, _>(|&x: &i32| x * 2))
-                        .depends_on(source);
+                        .depends_on(&source);
                     let right = dag
                         .add_task(task_fn::<i32, _, _>(|&x: &i32| x * 3))
-                        .depends_on(source);
+                        .depends_on(&source);
 
                     dag.add_task(task_fn::<(i32, i32), _, _>(|(l, r): (&i32, &i32)| l + r))
-                        .depends_on((left, right));
+                        .depends_on((&left, &right));
                 }
 
                 let _output = dag