Build failed. https://zuul.opendev.org/t/openstack/buildset/fc0b3eeeaaaa45649df6fea287dd277c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8ec1710d02884b18ad07a88df3a5e643 : FAILURE in 7m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ffec8684e79c4f6ea6f8c964b115dd58 : SUCCESS in 4m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c46ab12e460b4733bd47ef530dc15555 : SUCCESS in 8m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/528219bf2d4b4deab05ab271c695b4fb : SUCCESS in 5m 11s