def check_expecting_disconnect
      last_output = @continuous_output.raw_outputs.find { |d| d['output_type'] == 'stdout' }
      return unless last_output
      if EXPECTED_POWER_ACTION_MESSAGES.any? { |message| last_output['output'] =~ /^#{message}/ }
        @expecting_disconnect = true
      end
    end
def check_expecting_disconnect
      last_output = @continuous_output.raw_outputs.find { |d| d['output_type'] == 'stdout' }
      return unless last_output
      if EXPECTED_POWER_ACTION_MESSAGES.any? { |message| last_output['output'] =~ /^#{message}/ }
        @expecting_disconnect = true
      end
    end
when a remote server disconnects, it's hard to tell if it was on purpose (when calling reboot)
 or it's an error. When it's expected, we expect the script to produce 'restart host' as
 its last command output