Build failed. https://zuul.opendev.org/t/openstack/buildset/44cadb3688e649a6ad6b40777d28e79b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dbada43062014687bf7795294cda824e : SUCCESS in 3m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d1271c4b8c3d40e5906aabd8433ff570 : FAILURE in 3m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0d22c30b2d8a48e3a0cac574c8183dc1 : SUCCESS in 3m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4fe9f778f51e438f91da5887163f1066 : FAILURE in 5m 24s