Build failed. https://zuul.opendev.org/t/openstack/buildset/0b14e42ec2a64b489354b88632c77f5e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fe513151d1cc472f854ec51e8648546a : SUCCESS in 3m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f9c520fd87e84e66b845ae68f3e8962a : SUCCESS in 4m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d9a5ed1703364b7da05803c02f3d10fd : SUCCESS in 4m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bc70f22db1e943c18bf1570549a8e129 : FAILURE in 3m 38s