Build is failing after variable update

Hi, The build - e.g. https://gitlab.idiap.ch/bob/bob.db.biowave_v1/builds/13209

Is failing after you updated variables - https://gitlab.idiap.ch/bob/bob.db.biowave_v1/variables

[(Tue Sep 20 13:43:34 2016)!!] Command Failed "/Users/buildbot/work/gitlab-ci/work/gitlab-ci/f6f95b82/0/bob/bob.db.biowave_v1/env/bin/pip install --find-links https://www.idiap.ch/software/bob/wheels/gitlab/ --use-wheel --no-index --trusted-host www.idiap.ch --pre --requirement requirements.txt"

Any suggestions?