=> Bootstrap dependency digest>=20010302: found digest-20121220
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
===> Building for ruby193-rbtree-0.4.0
=> Removing backup files of patch before build
WARNING:  no email specified
  Successfully built RubyGem
  Name: rbtree
  Version: 0.4.0
  File: rbtree-0.4.0.gem
=> Unwrapping files-to-be-installed.