python3-plainbox:
  Installed: 0.5.4-1
  Candidate: 0.23+bzr3940+pkg34~ubuntu15.04.1
  Version table:
     0.23+bzr3940+pkg34~ubuntu15.04.1 0
        500 http://ppa.launchpad.net/ubuntu-testcase/community-testing/ubuntu/ vivid/main amd64 Packages
 *** 0.5.4-1 0
        500 http://gb.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status