=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for dm-ferret-adapter-1.2.0.gem
=> Checksum RMD160 OK for dm-ferret-adapter-1.2.0.gem
=> Checksum SHA512 OK for dm-ferret-adapter-1.2.0.gem
===> Installing dependencies for ruby26-dm-ferret-adapter-1.2.0
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency ruby26-dm-core>=1.2.0<1.3: found ruby26-dm-core-1.2.1
=> Full dependency ruby26-ferret>=0.11.6<0.12: found ruby26-ferret-0.11.8.7nb1
=> Full dependency ruby26-base>=2.6.7: NOT found
=> Verifying /nonexistent for ../../lang/ruby26-base
make[1]: don't know how to make /nonexistent. Stop

make[1]: stopped in /usr/pkgsrc/lang/ruby26-base
*** Error code 2

Stop.
make: stopped in /usr/pkgsrc/databases/ruby-dm-ferret-adapter