### WebSocketConnectionClosedException on angussidney/droplet at 2018-12-10T16:58:53Z: Connection is already closed.
File "/home/ubuntu/charcoal/SmokeDetector/excepthook.py", line 44, in run_with_except_hook
run_old(*args, **kw)
File "/usr/lib/python3.6/threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "/home/ubuntu/charcoal/SmokeDetector/deletionwatcher.py", line 47, in _start
msg = self.socket.recv()
File "/home/ubuntu/charcoal/SmokeDetector/env/lib/python3.6/site-packages/websocket/_core.py", line 293, in recv