Crash while trying to run `rbenv install rbx-2.0.0-dev` inside chef recipe. It waits for user input `y` for gems like rake, rdoc, ri and others which are in preinstall-gems.

ruby-build.20130808125730.21992.log

/tmp/ruby-build.20130808125730.21992/rubinius-2.0.0-dev/staging/bin/rbx /tmp/ruby-build.20130808125730.21992/rubinius-2.0.0-dev/rakelib/preinstall_gems.rb
Pre-installing gems for 1.9.3...
An exception occurred running /tmp/ruby-build.20130808125730.21992/rubinius-2.0.0-dev/rakelib/preinstall_gems.rb
    "rake" from rake conflicts with /tmp/ruby-build.20130808125730.21992/rubinius-2.0.0-dev/staging/bin/rake (Gem::InstallError)

Backtrace:
 Gem::Installer#check_executable_overwrite at staging/lib/rubygems
                                              /installer.rb:175
    { } in Gem::Installer#generate_bin at staging/lib/rubygems/installer.rb:375
                            Array#each at kernel/bootstrap/array.rb:68
           Gem::Installer#generate_bin at staging/lib/rubygems/installer.rb:362
                Gem::Installer#install at staging/lib/rubygems/installer.rb:222
 { } in Gem::DependencyInstaller#install at staging/lib/rubygems
                                            /dependency_installer.rb:371
  { } in Enumerable(Array)#each_with_index at kernel/common/enumerable19.rb:159
                            Array#each at kernel/bootstrap/array.rb:68
     Enumerable(Array)#each_with_index at kernel/common/enumerable19.rb:157
     Gem::DependencyInstaller#install at staging/lib/rubygems
                                         /dependency_installer.rb:331
              { } in Object#__script__ at rakelib/preinstall_gems.rb:28
                            Array#each at kernel/bootstrap/array.rb:68
                     Object#__script__ at rakelib/preinstall_gems.rb:16
      Rubinius::CodeLoader#load_script at kernel/delta/codeloader.rb:68
      Rubinius::CodeLoader.load_script at kernel/delta/codeloader.rb:119
               Rubinius::Loader#script at kernel/loader.rb:645
                 Rubinius::Loader#main at kernel/loader.rb:844
rake aborted!
Command failed with status (1): [/tmp/ruby-build.20130808125730.21992/rubin...]
/tmp/ruby-build.20130808125730.21992/rubinius-2.0.0-dev/rakelib/gems.rake:12:in `block (2 levels) in <top (required)>'
Tasks: TOP => install => gems:install