Build failed. https://zuul.opendev.org/t/openstack/buildset/6d597c16e2834aaa8b94cc039e50f384 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dad44f29639c4632be6ee9355dcdeddd : SUCCESS in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b34e7f842c724313970d506cefcbc2d7 : FAILURE in 4m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/73db5410b2c0466ab3d7fd6b8d9ee598 : SUCCESS in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8dbb578a00b9482680faf165b9feffd7 : SUCCESS in 4m 02s