=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for qdbm-1.8.78.tar.gz
=> Checksum RMD160 OK for qdbm-1.8.78.tar.gz
=> Checksum SHA512 OK for qdbm-1.8.78.tar.gz
===> Installing dependencies for ruby30-qdbm-1.0.0.1.8.78
=> Tool dependency gmake>=3.81: found gmake-4.2.1nb1
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency qdbm>=1.8.65: found qdbm-1.8.78
=> 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/databases/ruby-qdbm