● squid.service - LSB: Squid HTTP Proxy version 3.x
   Loaded: loaded (/etc/init.d/squid; bad; vendor preset: enabled)
   Active: failed (Result: resources) since Wed 2016-02-24 13:53:36 UTC; 1min 55s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 7363 ExecStart=/etc/init.d/squid start (code=exited, status=0/SUCCESS)
 Main PID: 6818

Feb 24 13:53:34 xenial-test systemd[1]: Starting LSB: Squid HTTP Proxy version 3.x...
Feb 24 13:53:36 xenial-test squid[7363]:    ...done.
Feb 24 13:53:36 xenial-test systemd[1]: squid.service: PID file /var/run/squid.pid not readable (yet?) after start: No such file or directory
Feb 24 13:53:36 xenial-test systemd[1]: Failed to start LSB: Squid HTTP Proxy version 3.x.
Feb 24 13:53:36 xenial-test systemd[1]: squid.service: Unit entered failed state.
Feb 24 13:53:36 xenial-test systemd[1]: squid.service: Failed with result 'resources'.