Build failed. https://zuul.opendev.org/t/openstack/buildset/42fe75a2943f4748b60d9e084e1c61c7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3a456ef5d9bc4717853cdae8202a8cda : SUCCESS in 3m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/702a7e74ef0b4a20b58e4f88ca0e6c1b : SUCCESS in 4m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2134b1bc19734f69ad36ff69db4fb400 : SUCCESS in 2m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6ecdabf7de724212af2ed45e068e675c : FAILURE in 3m 18s