Builds Perl distributions with perlbrew
Use travis-nightly-builder. Set up environment as described there, and then run, e.g.,
bundle exec rake build['perl-builder','default',"VERSION=5.22.0"]
or
bundle exec rake build['perl-builder','default',"VERSION=5.22.0 NAME=5.22-extras ALIAS=5.22-shrlibs ARGS='-Duseshrplib -Duseithreads'"]