=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for webkit-gtk2-3.4.2.gem
=> Checksum RMD160 OK for webkit-gtk2-3.4.2.gem
=> Checksum SHA512 OK for webkit-gtk2-3.4.2.gem
===> Installing dependencies for ruby30-webkit-gtk2-3.4.2
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency ruby30-gtk2>=3.4.2: found ruby30-gtk2-3.4.2nb1
=> Full dependency ruby30-gobject-introspection>=3.4.2: found ruby30-gobject-introspection-3.4.2
=> Full dependency webkit24-gtk>=1.10.2nb8: found webkit24-gtk-2.4.11nb33
=> Full dependency ruby30-base>=3.0.1: NOT found
=> Verifying /nonexistent for ../../lang/ruby30-base
make[1]: don't know how to make /nonexistent. Stop

make[1]: stopped in /usr/pkgsrc/lang/ruby30-base
*** Error code 2

Stop.
make: stopped in /usr/pkgsrc/www/ruby-webkit-gtk2