I have been trying to install devstack-vagrant from the GH page, unfortunately I can't open a ticket directly in the repo.

Here is the output log from the install with the specific error:

http://paste.openstack.org/show/420837/

al/lib/python2.7/dist-packages (from keystone==8.0.0.0b3.dev134)
==> manager: 2015-08-18 17:34:46.932 | Collecting oslo.service>=0.6.0 (from keystone==8.0.0.0b3.dev134)
==> manager: 2015-08-18 17:34:47.171 |   Downloading oslo.service-0.6.0-py2.py3-none-any.whl
==> manager: 2015-08-18 17:34:47.184 | Requirement already satisfied (use --upgrade to upgrade): oslo.utils>=2.0.0 in /usr/local/lib/python2.7/dist-packages (from keystone==8.0.0.0b3.dev134)
==> manager: 2015-08-18 17:34:47.190 | Collecting oauthlib>=0.6 (from keystone==8.0.0.0b3.dev134)
==> manager: 2015-08-18 17:34:47.452 |   Downloading oauthlib-1.0.3.tar.gz (109kB)
==> manager: 2015-08-18 17:34:47.598 | Collecting pysaml2>=2.4.0 (from keystone==8.0.0.0b3.dev134)
==> manager: 2015-08-18 17:34:47.854 |   Downloading pysaml2-3.0.0.tar.gz (13.1MB)
==> manager: 2015-08-18 17:34:50.446 | Exception:
==> manager: 2015-08-18 17:34:50.447 | Traceback (most recent call last):
==> manager: 2015-08-18 17:34:50.447 |   File "/usr/local/lib/python2.7/dist-packages/pip/basecommand.py", line 223, in main
==> manager: 2015-08-18 17:34:50.447 |     status = self.run(options, args)
==> manager: 2015-08-18 17:34:50.448 |   File "/usr/local/lib/python2.7/dist-packages/pip/commands/install.py", line 293, in run
==> manager: 2015-08-18 17:34:50.448 |     wb.build(autobuilding=True)
==> manager: 2015-08-18 17:34:50.448 |   File "/usr/local/lib/python2.7/dist-packages/pip/wheel.py", line 705, in build
==> manager: 2015-08-18 17:34:50.449 |     self.requirement_set.prepare_files(self.finder)
==> manager: 2015-08-18 17:34:50.449 |   File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 334, in prepare_files
==> manager: 2015-08-18 17:34:50.449 |     functools.partial(self._prepare_file, finder))
==> manager: 2015-08-18 17:34:50.449 |   File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 321, in _walk_req_to_install
==> manager: 2015-08-18 17:34:50.449 |     more_reqs = handler(req_to_install)
==> manager: 2015-08-18 17:34:50.449 |   File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 491, in _prepare_file
==> manager: 2015-08-18 17:34:50.450 |     session=self.session)
==> manager: 2015-08-18 17:34:50.450 |   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 825, in unpack_url
==> manager: 2015-08-18 17:34:50.450 |     session,
==> manager: 2015-08-18 17:34:50.450 |   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 673, in unpack_http_url
==> manager: 2015-08-18 17:34:50.451 |     from_path, content_type = _download_http_url(link, session, temp_dir)
==> manager: 2015-08-18 17:34:50.451 |   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 886, in _download_http_url
==> manager: 2015-08-18 17:34:50.451 |     _download_url(resp, link, content_file)
==> manager: 2015-08-18 17:34:50.451 |   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 621, in _download_url
==> manager: 2015-08-18 17:34:50.451 |     for chunk in progress_indicator ...