Build failed. https://zuul.opendev.org/t/openstack/buildset/a23facb948dd4fa7a77aa629377265d4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/864777e0e88148e2ba37dfb1c3e28730 : SUCCESS in 4m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5d5e15c98bf14d19bf45e78b8ecc3a55 : FAILURE in 4m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/958b3bb2bd6f4020bcb024fa606ba7fb : SUCCESS in 4m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1dd3b1b94d514aa8829b5e11816ac2c2 : SUCCESS in 5m 29s