Build failed. https://zuul.opendev.org/t/openstack/buildset/35d51c2d327742b9bf3f8e8d0be1805a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f502e19677044e4fbfa3d59208ee18b1 : SUCCESS in 4m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6ff58f3936404f4aafb272db6e782bf3 : SUCCESS in 5m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b80d0e6bafb442ddab32dc639214eb1e : FAILURE in 4m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/438f67abbaa348428a316fcf325a9955 : FAILURE in 4m 35s