Potentially incorrect logic in run_container in docker_master.py (worker)

[Snapple49]

When attempting to create container the method checks the result Docker API client function containers.run() (here and here ) to see if it exists, and if it does declares the creation successful. However if an error occured it may still exist while the container was not created, see example output from worker:

starting container snapple49/hio-tester:cpu50time60
..created container, logs:
b'Traceback (most recent call last):\n  File "example.py", line 1, in <module>\n    from harmo
nicPE.daemon import listen_for_tasks\n  File "/usr/local/lib/python3.6/site-packages/harmonicP
E/daemon.py", line 73\n    if not Setting.get_idle_timeout() == None\n                        
                    ^\nSyntaxError: invalid syntax\n'
[OUT: Container snapple49/hio-tester:cpu50time60 is created!]
[OUT: Container snapple49/hio-tester:cpu50time60 is created ]

Maybe better to check that status of result is running or something like this?