gcc-6-base:
  Installed: 6.2.0-10
  Candidate: 6.2.0-10
  Version table:
 *** 6.2.0-10 100
        100 /var/lib/dpkg/status
     6.0.1-0ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages