=> Bootstrap dependency digest>=20010302: found digest-20190127
WARNING: [license.mk] Every package should define a LICENSE.
===> 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 ruby27-rb-appscript-0.6.1nb1
=> Removing backup files of patch before build
WARNING:  See https://guides.rubygems.org/specification-reference/ for help
ERROR:  While executing gem ... (Gem::InvalidSpecificationException)
    authors may not be empty
*** Error code 1

Stop.
bmake[1]: stopped in /opt/pkgsrc/sysutils/ruby-rb-appscript
*** Error code 1

Stop.
bmake: stopped in /opt/pkgsrc/sysutils/ruby-rb-appscript