The Travis config had a gem update bundler step. The newest version of Bundler (2.0) has dropped support for EOL versions of Ruby, so this step would fail in Travis for old version of Ruby.
Fix by changing this step so that we always install Bundler 1.x, which supports the older versions of Ruby.
The Travis config had a
gem update bundler
step. The newest version of Bundler (2.0) has dropped support for EOL versions of Ruby, so this step would fail in Travis for old version of Ruby.Fix by changing this step so that we always install Bundler 1.x, which supports the older versions of Ruby.