Warning about scratch directories creating time taking too long #6639

2022-06-27 21:01:13,838 - distributed.utils_test - ERROR - Failed to start gen_cluster: TimeoutError: Nanny start timed out after 15s.; retrying
Traceback (most recent call last):
  File "d:\a\distributed\distributed\distributed\nanny.py", line 357, in start_unsafe
    response = await self.instantiate()
  File "d:\a\distributed\distributed\distributed\nanny.py", line 416, in instantiate
    result = await asyncio.wait_for(
  File "C:\Miniconda3\envs\dask-distributed\lib\asyncio\tasks.py", line 432, in wait_for
    await waiter
asyncio.exceptions.CancelledError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "C:\Miniconda3\envs\dask-distributed\lib\asyncio\tasks.py", line 456, in wait_for
    return fut.result()
asyncio.exceptions.CancelledError
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "d:\a\distributed\distributed\distributed\core.py", line 491, in start
    await asyncio.wait_for(self.start_unsafe(), timeout=timeout)
  File "C:\Miniconda3\envs\dask-distributed\lib\asyncio\tasks.py", line 458, in wait_for
    raise exceptions.TimeoutError() from exc
asyncio.exceptions.TimeoutError
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "d:\a\distributed\distributed\distributed\utils_test.py", line 1081, in async_fn
    s, ws = await start_cluster(
  File "d:\a\distributed\distributed\distributed\utils_test.py", line 924, in start_cluster
    await asyncio.gather(*workers)
  File "C:\Miniconda3\envs\dask-distributed\lib\asyncio\tasks.py", line 650, in _wrap_awaitable
    return (yield from awaitable.__await__())
  File "d:\a\distributed\distributed\distributed\core.py", line 494, in start
    raise asyncio.TimeoutError(
asyncio.exceptions.TimeoutError: Nanny start timed out after 15s.