Console log reproducing an issue with capybara 2.0.1 (or related)

gistfile1.txt

ruby-1.9.3-p286 % rvm gemset create delme
gemset created delme	=> /Users/christian/.rvm/gems/ruby-1.9.3-p286@delme

ruby-1.9.3-p286 % rvm use @delme
Using /Users/christian/.rvm/gems/ruby-1.9.3-p286 with gemset delme

ruby-1.9.3-p286@delme % gem install rails
Fetching: multi_json-1.3.7.gem (100%)
Fetching: activesupport-3.2.9.gem (100%)
Fetching: builder-3.0.4.gem (100%)
Fetching: activemodel-3.2.9.gem (100%)
Fetching: rack-1.4.1.gem (100%)
Fetching: rack-cache-1.2.gem (100%)
Fetching: rack-test-0.6.2.gem (100%)
Fetching: journey-1.0.4.gem (100%)
Fetching: hike-1.2.1.gem (100%)
Fetching: tilt-1.3.3.gem (100%)
Fetching: sprockets-2.2.1.gem (100%)
Fetching: actionpack-3.2.9.gem (100%)
Fetching: arel-3.0.2.gem (100%)
Fetching: tzinfo-0.3.35.gem (100%)
Fetching: activerecord-3.2.9.gem (100%)
Fetching: activeresource-3.2.9.gem (100%)
Fetching: mime-types-1.19.gem (100%)
Fetching: polyglot-0.3.3.gem (100%)
Fetching: treetop-1.4.12.gem (100%)
Fetching: mail-2.4.4.gem (100%)
Fetching: actionmailer-3.2.9.gem (100%)
Fetching: rack-ssl-1.3.2.gem (100%)
Fetching: thor-0.16.0.gem (100%)
Fetching: rdoc-3.12.gem (100%)
Depending on your version of ruby, you may need to install ruby rdoc/ri data:

<= 1.8.6 : unsupported
 = 1.8.7 : gem install rdoc-data; rdoc-data --install
 = 1.9.1 : gem install rdoc-data; rdoc-data --install
>= 1.9.2 : nothing to do! Yay!
Fetching: railties-3.2.9.gem (100%)
Fetching: rails-3.2.9.gem (100%)
Successfully installed multi_json-1.3.7
Successfully installed activesupport-3.2.9
Successfully installed builder-3.0.4
Successfully installed activemodel-3.2.9
Successfully installed rack-1.4.1
Successfully installed rack-cache-1.2
Successfully installed rack-test-0.6.2
Successfully installed journey-1.0.4
Successfully installed hike-1.2.1
Successfully installed tilt-1.3.3
Successfully installed sprockets-2.2.1
Successfully installed actionpack-3.2.9
Successfully installed arel-3.0.2
Successfully installed tzinfo-0.3.35
Successfully installed activerecord-3.2.9
Successfully installed activeresource-3.2.9
Successfully installed mime-types-1.19
Successfully installed polyglot-0.3.3
Successfully installed treetop-1.4.12
Successfully installed mail-2.4.4
Successfully installed actionmailer-3.2.9
Successfully installed rack-ssl-1.3.2
Successfully installed thor-0.16.0
Successfully installed rdoc-3.12
Successfully installed railties-3.2.9
Successfully installed rails-3.2.9
26 gems installed

ruby-1.9.3-p286@delme % rails new delme-cap
      create  
      create  README.rdoc
      create  Rakefile
      create  config.ru
      create  .gitignore
      create  Gemfile
      create  app
      create  app/assets/images/rails.png
      create  app/assets/javascripts/application.js
      create  app/assets/stylesheets/application.css
      create  app/controllers/application_controller.rb
      create  app/helpers/application_helper.rb
      create  app/mailers
      create  app/models
      create  app/views/layouts/application.html.erb
      create  app/mailers/.gitkeep
      create  app/models/.gitkeep
      create  config
      create  config/routes.rb
      create  config/application.rb
      create  config/environment.rb
      create  config/environments
      create  config/environments/development.rb
      create  config/environments/production.rb
      create  config/environments/test.rb
      create  config/initializers
      create  config/initializers/backtrace_silencers.rb
      create  config/initializers/inflections.rb
      create  config/initializers/mime_types.rb
      create  config/initializers/secret_token.rb
      create  config/initializers/session_store.rb
      create  config/initializers/wrap_parameters.rb
      create  config/locales
      create  config/locales/en.yml
      create  config/boot.rb
      create  config/database.yml
      create  db
      create  db/seeds.rb
      create  doc
      create  doc/README_FOR_APP
      create  lib
      create  lib/tasks
      create  lib/tasks/.gitkeep
      create  lib/assets
      create  lib/assets/.gitkeep
      create  log
      create  log/.gitkeep
      create  public
      create  public/404.html
      create  public/422.html
      create  public/500.html
      create  public/favicon.ico
      create  public/index.html
      create  public/robots.txt
      create  script
      create  script/rails
      create  test/fixtures
      create  test/fixtures/.gitkeep
      create  test/functional
      create  test/functional/.gitkeep
      create  test/integration
      create  test/integration/.gitkeep
      create  test/unit
      create  test/unit/.gitkeep
      create  test/performance/browsing_test.rb
      create  test/test_helper.rb
      create  tmp/cache
      create  tmp/cache/assets
      create  vendor/assets/javascripts
      create  vendor/assets/javascripts/.gitkeep
      create  vendor/assets/stylesheets
      create  vendor/assets/stylesheets/.gitkeep
      create  vendor/plugins
      create  vendor/plugins/.gitkeep
         run  bundle install
Fetching gem metadata from https://rubygems.org/...........
Fetching gem metadata from https://rubygems.org/..
Installing rake (10.0.2) 
Using i18n (0.6.1) 
Using multi_json (1.3.7) 
Using activesupport (3.2.9) 
Using builder (3.0.4) 
Using activemodel (3.2.9) 
Using erubis (2.7.0) 
Using journey (1.0.4) 
Using rack (1.4.1) 
Using rack-cache (1.2) 
Using rack-test (0.6.2) 
Using hike (1.2.1) 
Using tilt (1.3.3) 
Using sprockets (2.2.1) 
Using actionpack (3.2.9) 
Using mime-types (1.19) 
Using polyglot (0.3.3) 
Using treetop (1.4.12) 
Using mail (2.4.4) 
Using actionmailer (3.2.9) 
Using arel (3.0.2) 
Using tzinfo (0.3.35) 
Using activerecord (3.2.9) 
Using activeresource (3.2.9) 
Using bundler (1.2.1) 
Installing coffee-script-source (1.4.0) 
Installing execjs (1.4.0) 
Installing coffee-script (2.2.0) 
Using rack-ssl (1.3.2) 
Installing json (1.7.5) with native extensions 
Using rdoc (3.12) 
Using thor (0.16.0) 
Using railties (3.2.9) 
Installing coffee-rails (3.2.2) 
Installing jquery-rails (2.1.3) 
Using rails (3.2.9) 
Installing sass (3.2.3) 
Installing sass-rails (3.2.5) 
Installing sqlite3 (1.3.6) with native extensions 
Installing uglifier (1.3.0) 
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.

ruby-1.9.3-p286@delme % cd delme-cap

ruby-1.9.3-p286@delme % subl Gemfile

# Added rspec-rails and capybara to group :development, :test.

ruby-1.9.3-p286@delme % bundle
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata from https://rubygems.org/..
Using rake (10.0.2) 
Using i18n (0.6.1) 
Using multi_json (1.3.7) 
Using activesupport (3.2.9) 
Using builder (3.0.4) 
Using activemodel (3.2.9) 
Using erubis (2.7.0) 
Using journey (1.0.4) 
Using rack (1.4.1) 
Using rack-cache (1.2) 
Using rack-test (0.6.2) 
Using hike (1.2.1) 
Using tilt (1.3.3) 
Using sprockets (2.2.1) 
Using actionpack (3.2.9) 
Using mime-types (1.19) 
Using polyglot (0.3.3) 
Using treetop (1.4.12) 
Using mail (2.4.4) 
Using actionmailer (3.2.9) 
Using arel (3.0.2) 
Using tzinfo (0.3.35) 
Using activerecord (3.2.9) 
Using activeresource (3.2.9) 
Using bundler (1.2.1) 
Installing capybara (2.0.1) 
Using coffee-script-source (1.4.0) 
Using execjs (1.4.0) 
Using coffee-script (2.2.0) 
Using rack-ssl (1.3.2) 
Using json (1.7.5) 
Using rdoc (3.12) 
Using thor (0.16.0) 
Using railties (3.2.9) 
Using coffee-rails (3.2.2) 
Installing diff-lcs (1.1.3) 
Using jquery-rails (2.1.3) 
Using rails (3.2.9) 
Installing rspec-core (2.12.0) 
Installing rspec-expectations (2.12.0) 
Installing rspec-mocks (2.12.0) 
Installing rspec-rails (2.12.0) 
Using sass (3.2.3) 
Using sass-rails (3.2.5) 
Using sqlite3 (1.3.6) 
Using uglifier (1.3.0) 
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.

ruby-1.9.3-p286@delme % rails g rspec:install
/Users/christian/.rvm/gems/ruby-1.9.3-p286@delme/gems/capybara-2.0.1/lib/capybara.rb:2:in `require': cannot load such file -- nokogiri (LoadError)
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@delme/gems/capybara-2.0.1/lib/capybara.rb:2:in `<top (required)>'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.2.1/lib/bundler/runtime.rb:68:in `require'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.2.1/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.2.1/lib/bundler/runtime.rb:66:in `each'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.2.1/lib/bundler/runtime.rb:66:in `block in require'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.2.1/lib/bundler/runtime.rb:55:in `each'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.2.1/lib/bundler/runtime.rb:55:in `require'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.2.1/lib/bundler.rb:128:in `require'
	from /Users/christian/Development/Projects/xian/delme-cap/config/application.rb:7:in `<top (required)>'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@delme/gems/railties-3.2.9/lib/rails/commands.rb:24:in `require'
	from /Users/christian/.rvm/gems/ruby-1.9.3-p286@delme/gems/railties-3.2.9/lib/rails/commands.rb:24:in `<top (required)>'
	from script/rails:6:in 'require'
	from script/rails:6:in '<main>'
~/Development/Projects/xian/delme-cap exited 1