travis: "bundler is not installed in GEM_HOME"
travis: "bundler is not installed in GEM_HOME"

"try: gem uninstall -i /home/travis/.rvm/gems/ruby-2.5.5@global bundler"

https://travis-ci.org/amatsuda/jb/jobs/512845898

amatsuda/jb,amatsuda/jb,amatsuda/jb,amatsuda/jb