Build failed. https://zuul.opendev.org/t/openstack/buildset/f2c5a5ace55e4fe79ffd68d1a254cc85 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/119665a96f3d42ccae009b977a07af29 : SUCCESS in 3m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/73e02a6af1864135a2c1d3910ea14d87 : SUCCESS in 4m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/66e990ce667e4579850158d8e5181300 : SUCCESS in 6m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d2d60986febc40a9b5fe24fe2b0f7151 : FAILURE in 4m 46s