Error with brew install

[JNAppleby]

While trying to install this I ran into this traceback error:

==> Installing docker-forward from socialfinance/sofi
==> Downloading https://github.com/vultron81/docker-forward/archive/v1.2.1.tar.g
Already downloaded: /Users/jappleby/Library/Caches/Homebrew/docker-forward-1.2.1.tar.gz
==> Downloading https://pypi.python.org/packages/ae/e4/82870b5e01d761a04597fa332
Already downloaded: /Users/jappleby/Library/Caches/Homebrew/docker-forward--pythondaemon-2.1.1.tar.gz
==> python -c import setuptools... --no-user-cfg install --prefix=/usr/local/Cel
Last 15 lines from /Users/jappleby/Library/Logs/Homebrew/docker-forward/01.python:

Installed /private/tmp/docker-forward--pythondaemon-20160801-17233-63u2qq/python-daemon-2.1.1/docutils-0.12-py2.7.egg
running install
running build
running build_py
creating build
creating build/lib
creating build/lib/daemon
copying daemon/init.py -> build/lib/daemon
copying daemon/_metadata.py -> build/lib/daemon
copying daemon/daemon.py -> build/lib/daemon
copying daemon/pidfile.py -> build/lib/daemon
copying daemon/runner.py -> build/lib/daemon
running build_data
error: invalid command 'build_data'

READ THIS: https://git.io/brew-troubleshooting
If reporting this issue please do so at (not Homebrew/brew):
  https://github.com/socialfinance/homebrew-sofi/issues