=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for amqp-1.8.0.gem
=> Checksum RMD160 OK for amqp-1.8.0.gem
=> Checksum SHA512 OK for amqp-1.8.0.gem
===> Installing dependencies for ruby27-amqp-1.8.0
=> Tool dependency distcc-[0-9]*: found distcc-3.3
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency ruby27-eventmachine>=0: found ruby27-eventmachine-1.2.7nb1
=> Full dependency ruby27-amq-protocol>=2.0.1: found ruby27-amq-protocol-2.3.0
=> Full dependency ruby27-base>=2.7.1: NOT found
=> Verifying /nonexistent for ../../lang/ruby27-base
make[1]: don't know how to make /nonexistent. Stop

make[1]: stopped in /usr/pkgsrc/lang/ruby27-base
*** Error code 2

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