=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for train-core-3.5.4.gem
=> Checksum RMD160 OK for train-core-3.5.4.gem
=> Checksum SHA512 OK for train-core-3.5.4.gem
===> Installing dependencies for ruby25-train-core-3.5.4
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency ruby25-addressable>=2.5<3: found ruby25-addressable-2.7.0
=> Full dependency ruby25-ffi>=1.13.1: found ruby25-ffi-1.15.0
=> Full dependency ruby25-mixlib-shellout>=2.0: found ruby25-mixlib-shellout-3.2.5
=> Full dependency ruby25-net-scp>=1.2<4.0: found ruby25-net-scp-3.0.0
=> Full dependency ruby25-base>=2.5.9: NOT found
=> Verifying /nonexistent for ../../lang/ruby25-base
make[1]: don't know how to make /nonexistent. Stop

make[1]: stopped in /usr/pkgsrc/lang/ruby25-base
*** Error code 2

Stop.
make: stopped in /usr/pkgsrc/net/ruby-train-core