problem during installation
when running installation script I'm getting this error:
Command "/usr/bin/python /usr/local/lib/python2.7/dist-packages/pip-19.0.3-py2.7.egg/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-lNLRWe/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools wheel "cffi>=1.4.1; python_implementation != 'PyPy'"" failed with error code 1 in None

How can I fix it?

complete log attached
[pi_log.txt](https://github.com/oznu/docker-homebridge/files/3024751/pi_log.txt)
