Traceback (most recent call last):


 "/build/python-distributed/src/distributed-2020.12.0/distributed/semaphore.py", line 538, in __del__

if self._periodic_callback_name in self.client._periodic_callbacks:
AttributeError: 'Semaphore' object has no attribute '_periodic_callback_name'

Traceback (most recent call last):


 "/home/fuhao/anaconda3/envs/pytorch_cuda8/lib/python3.6/distutils/unixccompiler.py", line 118, in _compile

extra_postargs)


 "/home/fuhao/anaconda3/envs/pytorch_cuda8/lib/python3.6/distutils/ccompiler.py", line 909, in spawn

spawn(cmd, dry_run=self.dry_run)


 "/home/fuhao/anaconda3/envs/pytorch_cuda8/lib/python3.6/distutils/spawn.py", line 36, in spawn

_spawn_posix(cmd, search_path, dry_run=dry_run)


 "/home/fuhao/anaconda3/envs/pytorch_cuda8/lib/python3.6/distutils/spawn.py", line 159, in _spawn_posix

% (cmd, exit_status))
distutils.errors.DistutilsExecError: command 'gcc' failed with exit status 1
