Build failed. https://zuul.opendev.org/t/openstack/buildset/61262e8974f24dd693ead968f6c2344c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/73d9dbb9637b438493129e23bd2d9c6a : SUCCESS in 3m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/da93d62fb68d4c828655625def1ac6bf : SUCCESS in 4m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f4fa2c104e2c4e369678469143fd2a36 : SUCCESS in 4m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c13fb35da83c4857b92dea5f0b11f689 : FAILURE in 3m 53s