Build failed. https://zuul.opendev.org/t/openstack/buildset/b4e8dd5ef1de4d1ca58748719f2d4263 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7124a36967084d1b834b9d18104cd508 : SUCCESS in 5m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bfd66b62d35e452bbb9a1811eb7c81c9 : FAILURE in 4m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bd5f2b10daee478596c3a7f1b7c87593 : SUCCESS in 5m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e26a22e3a1074f5493f88c9a8146412b : SUCCESS in 3m 49s