Build failed.

- openstack-doc-tools-tarball http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 2m 22s - openstack-doc-tools-tarball-signing http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 33s - openstack-doc-tools-pypi-both-upload http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 30s - wheel-build-ubuntu-trusty-amd64-python2 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 53m 45s - wheel-release-trustyx64 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 1m 05s - wheel-build-ubuntu-trusty-amd64-python3 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 1h 03m 44s - wheel-release-trustyx64 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 1m 05s - wheel-build-ubuntu-xenial-amd64-python2 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 37m 49s - wheel-release-xenialx64 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 1m 08s - wheel-build-ubuntu-xenial-amd64-python3 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 39m 48s - wheel-release-xenialx64 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 1m 08s - wheel-build-centos-7-amd64-python2 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : FAILURE in 42m 51s - wheel-release-cent7x64 wheel-release-cent7x64 : SKIPPED - wheel-build-centos-7-amd64-python3 http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : FAILURE in 56m 32s - wheel-release-cent7x64 wheel-release-cent7x64 : SKIPPED - openstack-doc-tools-announce-release http://logs.openstack.org/f4/f4cde426b174ef392704fe822dae1eccd21508f3/releas... : SUCCESS in 3m 34s