gistfile1.txt

Unfortunately, a fatal error has occurred. Please see the Bundler 
troubleshooting documentation at http://bit.ly/bundler-issues. Thanks!

/Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/2.0.0/net/http.rb:917:in `connect': SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (OpenSSL::SSL::SSLError)
  from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/2.0.0/net/http.rb:917:in `block in connect'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/2.0.0/timeout.rb:51:in `timeout'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/2.0.0/net/http.rb:917:in `connect'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/2.0.0/net/http.rb:861:in `do_start'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/2.0.0/net/http.rb:856:in `start'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/vendor/net/http/persistent.rb:628:in `start'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/vendor/net/http/persistent.rb:570:in `connection_for'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/vendor/net/http/persistent.rb:930:in `request'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/fetcher.rb:169:in `fetch'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/fetcher.rb:151:in `use_api'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/source/rubygems.rb:223:in `block in remote_specs'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/source/rubygems.rb:223:in `select'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/source/rubygems.rb:223:in `remote_specs'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/source/rubygems.rb:162:in `fetch_specs'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/source/rubygems.rb:66:in `specs'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/definition.rb:192:in `block (2 levels) in index'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/definition.rb:189:in `each'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/definition.rb:189:in `block in index'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/index.rb:9:in `build'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/definition.rb:185:in `index'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/definition.rb:179:in `resolve'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/definition.rb:114:in `specs'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/definition.rb:109:in `resolve_remotely!'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/installer.rb:83:in `run'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/installer.rb:14:in `install'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/cli.rb:247:in `install'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/vendor/thor/task.rb:27:in `run'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/vendor/thor/invocation.rb:120:in `invoke_task'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/vendor/thor.rb:344:in `dispatch'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/vendor/thor/base.rb:434:in `start'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/bin/bundle:20:in `block in <top (required)>'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/lib/bundler/friendly_errors.rb:4:in `with_friendly_errors'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.3.0.pre.8/bin/bundle:20:in `<top (required)>'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/bin/bundle:23:in `load'
	from /Users/keithpitt/.rbenv/versions/2.0.0-p0/bin/bundle:23:in `<main>'

this looks like the error that is raised when ruby/openssl doesn't have a copy of the intermediate certificate.

Here's how I fix it on debian (http://yob.id.au/2013/02/06/trusting-new-ssl-certificates-in-debian.html), bot sure about OSX.

FYI, this was a problem with ruby-build. Check out this comment thread for a fix on OSX: rubygems/bundler#2318 (comment)