==> default: Processing triggers for php5-fpm (5.6.17+dfsg-0+deb8u1) ...
==> default: /opt/app/.sandstorm/setup.sh: line 9: fastcgi_path_info: unbound variable
The SSH command responded with a non-zero exit status. Vagrant
assumes that this means the command failed. The output for this command
should be in the log above. Please read the output to determine what
went wrong.
Traceback (most recent call last):
  File "/usr/local/bin/vagrant-spk", line 671, in <module>
    main()
  File "/usr/local/bin/vagrant-spk", line 668, in main
    operation(args)
  File "/usr/local/bin/vagrant-spk", line 528, in bring_up_vm
    call_vagrant_command(sandstorm_dir, "up")
  File "/usr/local/bin/vagrant-spk", line 196, in call_vagrant_command
    return subprocess.check_call(command, cwd=sandstorm_dir)
  File "/usr/lib/python2.7/subprocess.py", line 540, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['vagrant', 'up']' returned non-zero exit status 1