Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/531ccf0e702c4995bee3987d7d0d2b59 : SUCCESS in 4m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/810d6d5a157f46389f92638c98bfa5b8 : SUCCESS in 6m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/90daeea1e00c4403ae53a6e3d05c3e3a : SUCCESS in 6m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a9dd06245b2c466b98f4098a016c75b6 : FAILURE in 5m 41s