=> Bootstrap dependency digest>=20010302: found digest-20160304
===> 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'.
===> Installing for ruby21-mustermann-1.0.0
=> Generating pre-install file lists
=> Installing gem into installation root
ERROR:  Error installing /data/scratch/www/ruby-mustermann/work/mustermann-1.0.0/mustermann-1.0.0.gem:
	mustermann requires Ruby version >= 2.2.0.
*** Error code 1

Stop.
make[1]: stopped in /data/pkgsrc-current/www/ruby-mustermann
*** Error code 1

Stop.
make: stopped in /data/pkgsrc-current/www/ruby-mustermann