Build failed. https://zuul.opendev.org/t/openstack/buildset/4b43873f6de54e2c9d5bd89a8655816b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/12d88c7a9ad74219aa4e85c92121456d : SUCCESS in 4m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7d608997767149e4b9674a218a047a13 : FAILURE in 3m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c994858c607d4813a62714bb4245f7e8 : SUCCESS in 4m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/99aac1b3536b4207bdfe767a362e6da6 : SUCCESS in 3m 42s