Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f991a1c7064e40b88281068c58b67a12 : SUCCESS in 5m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/272351ff945d4fe888c8248d4b0eed76 : FAILURE in 3m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dd4905526e4f43b786e189376a1d123c : SUCCESS in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a157d33a1e3c46609135d558284b4987 : SUCCESS in 4m 45s