unknown-section varnish-6.0/web
  Section: @SECTION@/web -> Section: web
  Section: @SECTION/libdevel -> libdevel
  The substitution line in the package-deb script got removed:
  sed -i -e "s|@SECTION@|varnish-$MAJOR|" "$DIST_DIR/debian/control

copyright-without-copyright-notice:
  The copyright file expected a certain 3 line header:
      Copyright YYYY Firstname Lastname <address@example.com>
      Copr. YYYY-YYYY Firstname Lastname <address@example.com>
      © YYYY,YYYY Firstname Lastname <address@example.com>

Added debian/source/format file with content "1.0"