=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Skipping vulnerability checks.
WARNING: No /opt/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/opt/pkg/sbin/pkg_admin -K /opt/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Building for ruby25-rbpdf-1.20.1
=> Removing backup files of patch before build
WARNING:  license value 'LGPL-2.1-or-later' is invalid.  Use a license identifier from
http://spdx.org/licenses or 'Nonstandard' for a nonstandard license.
Did you mean 'LGPL-2.1', 'LGPL-2.1+'?
WARNING:  no homepage specified
WARNING:  pessimistic dependency on rbpdf-font (~> 1.19.0) may be overly strict
  if rbpdf-font is semantically versioned, use:
    add_runtime_dependency 'rbpdf-font', '~> 1.19', '>= 1.19.0'
WARNING:  See http://guides.rubygems.org/specification-reference/ for help
  Successfully built RubyGem
  Name: rbpdf
  Version: 1.20.1
  File: rbpdf-1.20.1.gem