Build failed. https://zuul.opendev.org/t/openstack/buildset/c4f9dbe1ffcd4df5bc1de1d547bb9de5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b7b31aeb095a40c38a1a7fe28b2c59a3 : SUCCESS in 2m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0184eb1ce7e14df59b6064dc7f281d51 : SUCCESS in 3m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1edd29e7b2ad471284234aee19f8d603 : FAILURE in 3m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5f318b5d0e9a437cb6443a719a9c3d42 : FAILURE in 2m 27s