In trying to run RSpec 2.14.0.rc1 on Rails 4.1.0.beta, I immediately get a warning: ``` you should require 'minitest/autorun' instead ``` that comes up in the backtrace assigned to the line ``` require 'rspec/rails' ``` in `spec_helper.rb` If I add this before it ``` require 'minitest/autorun' ``` the warning goes away. Alternatively, the problem goes away without changing the `spec_helper.rb` file if I add ``` gem 'minitest' ``` to the gemfile It will do this with a single spec file that only contains ``` require 'spec_helper' ```