Bundler error

deploy@184:~$ uname -a
Linux 184.106.206.118 2.6.33.5-rscloud #2 SMP Thu Jun 10 15:26:23 UTC 2010 x86_64 GNU/Linux
deploy@184:~$ gem -v
1.3.7
deploy@184:~$ bundle -v
Bundler version 1.0.0.rc.2
deploy@184:~$ mkdir temp
deploy@184:~$ cd temp/
deploy@184:~/temp$ bundle init
Writing new Gemfile to /home/deploy/temp/Gemfile
deploy@184:~/temp$ bundle install
<internal:gem_prelude>:344:in `method_missing': undefined method `user_home' for Gem:Module (NoMethodError)
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/settings.rb:105:in `global_config_file'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/settings.rb:6:in `initialize'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler.rb:172:in `new'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler.rb:172:in `settings'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/cli.rb:156:in `install'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/vendor/thor/task.rb:22:in `run'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/vendor/thor/invocation.rb:109:in `block in invoke'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/vendor/thor/invocation.rb:116:in `call'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/vendor/thor/invocation.rb:116:in `invoke'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/vendor/thor.rb:161:in `block in start'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/vendor/thor/base.rb:379:in `start'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/lib/bundler/vendor/thor.rb:140:in `start'
	from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.0.rc.2/bin/bundle:13:in `<top (required)>'
	from /usr/bin/bundle:19:in `load'
	from /usr/bin/bundle:19:in `<main>'