===>  ruby-1.8.6 has known vulnerabilities:
=> ruby - multiple vulnerabilities.
   Reference: <http://www.FreeBSD.org/ports/portaudit/76562594-1f19-11db-b7d4-0008743bf21a.html>
=> Please update your ports tree and try again.
*** Error code 1

Stop in /usr/ports/lang/ruby18.
*** Error code 1

Stop in /usr/ports/lang/ruby18.
** Command failed [exit code 1]: /usr/bin/script -qa /tmp/portupgrade.76200.0 env UPGRADE_TOOL=portupgrade UPGRADE_PORT=ruby-1.8.5.12,1 UPGRADE_PORT_VER=1.8.5.12,1 make
** Fix the problem and try again.
** Listing the failed packages (*:skipped / !:failed)
        ! lang/ruby18 (ruby-1.8.5.12,1) (unknown build error)
--->  Packages processed: 0 done, 0 ignored, 0 skipped and 1 failed
(18:15:40)-root-#