Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/979aa0517ed241ca921d554b1cdb1b5d : SUCCESS in 8m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/866b7bbf48e14d5b8a64ddd526eec0be : FAILURE in 4m 57s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/66e4021ef93a475c9443e3b94f7be421 : SUCCESS in 6m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e415dace6b724ca3940c81e9a49c81c1 : SUCCESS in 6m 28s