title: Supervisor 3.3 with Ubuntu 16.04 service start failure
body: <p>This morning, I have upgrade my supervisor by using</p>
  
  <pre><code>pip install --upgrade supervisor //from 3.2 to 3.3
  </code></pre>
  
  <p>But after that, service status notice it failure start.</p>
  
  <pre><code>supervisor.service - Supervisor process control system for UNIX
  Loaded: loaded (/lib/systemd/system/supervisor.service; disabled; vendor preset: enabled)
  Active: activating (auto-restart) (Result: exit-code) since Tue 2016-05-24 12:19:48 CST; 25s ago
  Docs: http://supervisord.org
  Process: 27369 ExecStop=/usr/bin/supervisorctl $OPTIONS shutdown (code=exited, status=203/EXEC)
  Process: 27366 ExecStart=/usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf (code=exited, status=203/EXEC)
  Main PID: 27366 (code=exited, status=203/EXEC)
  
  May 24 12:19:48 709101111291e5cZ systemd[1]: supervisor.service: Unit entered failed state.
  May 24 12:19:48 709101111291e5cZ systemd[1]: supervisor.service: Failed with result 'exit-code'.
  </code></pre>
  
  <p>This is my worker config:</p>
  
  <pre><code>[program:worker]
  process_name=%(program_name)s_%(process_num)02d
  command=php artisan queue:listen --timeout=360 --queue=high,low --sleep=3 --tries=3
  autostart=true
  autorestart=true
  exitcodes=0,2
  user=www
  numprocs=2
  redirect_stderr=true
  stdout_logfile=/www/worker/storage/logs/worker.log
  </code></pre>
  
  <p>Would please someone could help?</p>