----------------------------------------
  Rolling back uninstall of mercurial
Cleaning up...
Command /opt/noc/bin/python -c "import setuptools, tokenize;__file__='/opt/noc/build/Mercurial/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-eG0TRy-record/install-record.txt --single-version-externally-managed --compile --install-headers /opt/noc/include/site/python2.7 failed with error code 1 in /opt/noc/build/Mercurial
Traceback (most recent call last):
  File "./bin/pip", line 11, in <module>
    sys.exit(main())
  File "/opt/noc/lib/python2.7/site-packages/pip/__init__.py", line 185, in main
    return command.main(cmd_args)
  File "/opt/noc/lib/python2.7/site-packages/pip/basecommand.py", line 161, in main
    text = '\n'.join(complete_log)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 9: ordinal not in range(128)
upgrade: : Cannot update python libraries
Terminating