Build failed. https://zuul.opendev.org/t/openstack/buildset/c50b87baf9244b93af5e74129a42d16f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3758edaa5e114503b4fd60b14f803682 : FAILURE in 4m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a7bb7d057a3d46b4a98fe3eb7e6df6e3 : SUCCESS in 3m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8e7a8c28548e49dd9b864d1ca5768833 : SUCCESS in 3m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dec5213c272d42cf8ea60d80336c964b : SUCCESS in 3m 16s