Print the serial number of the device that timed out.

build/android/pylib/android_commands.py

 # Copyright (c) 2012 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.
 
 """Provides an interface to communicate with the device via the adb command.
 
 Assumes adb binary is currently on system path.
 """
 
 import collections
@@ skipping 368 matching lines @@
     while True:
       try:
         if not keep_data:
           assert package_name
           self.Uninstall(package_name)
         install_status = self.Install(apk_path, reinstall=keep_data)
         if 'Success' in install_status:
           return install_status
       except errors.WaitForResponseTimedOutError:
         print '@@@STEP_WARNINGS@@@'
-        logging.info('Timeout on installing %s' % apk_path)
+        logging.info('Timeout on installing %s on device %s', apk_path,
+                     self._device)
 
       if reboots_left <= 0:
         raise Exception('Install failure')
 
       # Force a hard reboot on last attempt
       self.Reboot(full_reboot=(reboots_left == 1))
       reboots_left -= 1
 
   def MakeSystemFolderWritable(self):
     """Remounts the /system folder rw."""
@@ skipping 912 matching lines @@
   """
   def __init__(self, output):
     self._output = output
 
   def write(self, data):
     data = data.replace('\r\r\n', '\n')
     self._output.write(data)
 
   def flush(self):
     self._output.flush()