public async Task DequeueThings(CancellationToken cancel)
        {
            Debug.WriteLine("DEQUEUE cancel? " + cancel.IsCancellationRequested);

            while (cancel.IsCancellationRequested == false)
            {
                string thingy = "";
                if (TestQueue.TryPeekAwait(out thingy))
                {
                    await Task.Delay(50);

                    TestQueue.TryDequeue(out thingy);
                    OutputText = "dequeued: " + thingy + "             queue count: " + TestQueue.Count();
                    Debug.WriteLine("dequeued: " + thingy);
                }
                if (TestQueue.Count() == 0)
                {
                    Debug.WriteLine("cancel");
                    source2.Cancel();
                }
            }
        }