Build failed. https://zuul.opendev.org/t/openstack/buildset/58ce1670f2a641d0bd56a1575fd1e84c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ea8385c482c54fd399e45653f572594f : SUCCESS in 4m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b7a6e9a52b914445b28a2cff8bcb9b16 : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a7b6e376722a4bfebeb1f3f3d7a0c82b : SUCCESS in 4m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f088540405174bf1a09f34da4b847eef : FAILURE in 3m 28s