exception during platformio upgrade

Here is the console output of the upgrade. There is an exception trace at the end. This was run from an administrative command prompt in Windows 8.1.
>platformio upgrade
There is a new version 0.10.1 of PlatformIO available.
Please upgrade it via platformio upgrade command.
Changes: http://docs.platformio.ikravets.com/en/latest/history.html

There are the new updates for platforms (atmelavr)
Please wait while updating platforms ...

Platform atmelavr
--------
Updating toolchain-atmelavr package:
Versions: Current=1, Latest=1    [Up-to-date]
Updating tool-avrdude package:
Versions: Current=1, Latest=1    [Up-to-date]
Updating framework-arduinoavr package:
Versions: Current=8, Latest=9    [Out-of-date]
Uninstalling framework-arduinoavr package:      [OK]
Installing framework-arduinoavr package:
Downloading  [####################################]  100%
Unpacking  [####################################]  100%

Platform timsp430
--------
Updating toolchain-timsp430 package:
Versions: Current=1, Latest=1    [Up-to-date]
Updating tool-mspdebug package:
Versions: Current=1, Latest=1    [Up-to-date]
Updating framework-energiamsp430 package:
Versions: Current=2, Latest=2    [Up-to-date]

Platform titiva
--------
Updating toolchain-gccarmnoneeabi package:
Versions: Current=1, Latest=1    [Up-to-date]
Updating tool-lm4flash package:
Versions: Current=1, Latest=1    [Up-to-date]
Updating framework-energiativa package:
Versions: Current=3, Latest=3    [Up-to-date]

There are the new updates for libraries (Adafruit-NeoPixel)
Please wait while updating libraries ...
Updating  [ 28 ] Adafruit-NeoPixel library:
Versions: Current=349b45afc9, Latest=61d5a3ebe9          [Out-of-date]
The library #28 'Adafruit-NeoPixel' has been successfully uninstalled!
Installing library [ 28 ]:
Downloading  [####################################]  100%
Unpacking  [####################################]  100%
The library #28 'Adafruit-NeoPixel' has been successfully installed!

Downloading/unpacking platformio from https://pypi.python.org/packages/source/p/platformio/platformio-0.10.1.tar.gz#md5=65edff2e8a2c92906a847f7e55e71
8a8
  Downloading platformio-0.10.1.tar.gz
  Running setup.py (path:c:\users\....\appdata\local\temp\pip_build_jhalleux\platformio\setup.py) egg_info for package platformio

Requirement already up-to-date: click in c:\python27\lib\site-packages (from platformio)
Requirement already up-to-date: pyserial in c:\python27\lib\site-packages (from platformio)
Downloading/unpacking requests from https://pypi.python.org/packages/py2.py3/r/requests/requests-2.5.1-py2.py3-none-any.whl#md5=11dc91bc96c5c5e0b566c
e8f9c9644ab (from platformio)
Requirement already up-to-date: colorama in c:\python27\lib\site-packages (from platformio)
Installing collected packages: platformio, requests
  Found existing installation: platformio 0.9.2
    Uninstalling platformio:
      Successfully uninstalled platformio
  Running setup.py install for platformio

    Installing platformio-script.py script to C:\Python27\Scripts
    Installing platformio.exe script to C:\Python27\Scripts
Cleaning up...
Exception:
Traceback (most recent call last):
  File "C:\Python27\lib\site-packages\pip\basecommand.py", line 122, in main
    status = self.run(options, args)
  File "C:\Python27\lib\site-packages\pip\commands\install.py", line 283, in run
    requirement_set.install(install_options, global_options, root=options.root_path)
  File "C:\Python27\lib\site-packages\pip\req.py", line 1443, in install
    requirement.commit_uninstall()
  File "C:\Python27\lib\site-packages\pip\req.py", line 610, in commit_uninstall
    self.uninstalled.commit()
  File "C:\Python27\lib\site-packages\pip\req.py", line 1860, in commit
    rmtree(self.save_dir)
  File "C:\Python27\lib\site-packages\pip\util.py", line 43, in rmtree
    onerror=rmtree_errorhandler)
  File "C:\Python27\lib\shutil.py", line 247, in rmtree
    rmtree(fullname, ignore_errors, onerror)
  File "C:\Python27\lib\shutil.py", line 247, in rmtree
    rmtree(fullname, ignore_errors, onerror)
  File "C:\Python27\lib\shutil.py", line 252, in rmtree
    onerror(os.remove, fullname, sys.exc_info())
  File "C:\Python27\lib\site-packages\pip\util.py", line 62, in rmtree_errorhandler
    func(path)
WindowsError: [Error 5] Access is denied: 'c:\\users\\....\\appdata\\local\\temp\\pip-p5rme5-uninstall\\python27\\scripts\\platformio.exe'

Storing debug log for failure in \pip.log
platformio / platformio-core

exception during platformio upgrade #45
