Add date mismatch logging.

build/android/provision_devices.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Provisions Android devices with settings required for bots.
 
 Usage:
   ./provision_devices.py [-d <device serial number>]
@@ skipping 301 matching lines @@
     device_time = device.RunShellCommand(
         ['date', '+"%Y%m%d.%H%M%S"'], as_root=True,
         single_line=True).replace('"', '')
     device_time = datetime.datetime.strptime(device_time, "%Y%m%d.%H%M%S")
     correct_time = datetime.datetime.strptime(strgmtime, date_format)
     tdelta = (correct_time - device_time).seconds
     if tdelta <= 1:
       logging.info('Date/time successfully set on %s', device)
       return True
     else:
+      logging.error('Date mismatch. Device: %s Correct: %s',
+                    device_time.isoformat(), correct_time.isoformat())
       return False
 
   # Sometimes the date is not set correctly on the devices. Retry on failure.
   if not timeout_retry.WaitFor(_set_and_verify_date, wait_period=1,
                                max_tries=2):
     raise device_errors.CommandFailedError(
         'Failed to set date & time.', device_serial=str(device))
 
   props = device.RunShellCommand('getprop', check_return=True)
   for prop in props:
@@ skipping 118 matching lines @@
   args = parser.parse_args()
   constants.SetBuildType(args.target)
 
   run_tests_helper.SetLogLevel(args.verbose)
 
   return ProvisionDevices(args)
 
 
 if __name__ == '__main__':
   sys.exit(main())