Foreman » Smart Proxy

As with Foreman in #14114, rake 11.x causes the following error with rubocop pre-0.38.0:

NoMethodError: undefined method `last_comment' for #<Rake::Application:0x000000019f30c0>
/usr/local/rvm/gems/ruby-1.9.3-p392@test_proxy_develop_pr_core-1/gems/rubocop-0.37.1/lib/rubocop/rake_task.rb:24:in `initialize'
tasks/rubocop.rake:4:in `new'
tasks/rubocop.rake:4:in `<top (required)>'
/var/lib/workspace/workspace/test_proxy_develop_pr_core/puppet/3.2.0/ruby/1.9.3/Rakefile:11:in `load'
/var/lib/workspace/workspace/test_proxy_develop_pr_core/puppet/3.2.0/ruby/1.9.3/Rakefile:11:in `<top (required)>'
/usr/local/rvm/gems/ruby-1.9.3-p392@test_proxy_develop_pr_core-1/bin/ruby_noexec_wrapper:14:in `eval'
/usr/local/rvm/gems/ruby-1.9.3-p392@test_proxy_develop_pr_core-1/bin/ruby_noexec_wrapper:14:in `<main>'

On Ruby 1.8.7, rake 11.x also can't be installed as it's now 1.9.3+ only:

Installing rake 11.0.1
Gem::InstallError: rake requires Ruby version >= 1.9.3.