message: Update src/core/executor.rs
diff: @@ -49,7 +49,6 @@ impl Executor {
  match self {
  Executor::SingleThread => args.map(f).collect::<crate::Result<_>>(),
  Executor::ThreadPool(pool) => {
  - // let args_with_indices: Vec<(usize, A)> = args.enumerate().collect();
  let args: Vec<A> = args.collect();
  let num_fruits = args.len();
  let fruit_receiver = {
  