rubygems.org timeout

~/source/gravity/master$ git push [email protected]:gravity-staging.git staging:master
Counting objects: 37, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (19/19), done.
Writing objects: 100% (19/19), 2.08 KiB, done.
Total 19 (delta 13), reused 0 (delta 0)
-----> Deleting 12 files matching .slugignore patterns.
-----> Ruby/Rails app detected
-----> Using Ruby version: ruby-1.9.3
-----> Installing dependencies using Bundler version 1.3.0.pre.5
       Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin
       Updating https://github.com/dblock/garner.git
       Updating https://github.com/dblock/devise_invitable.git
       Updating https://github.com/indirect/haml-rails.git
       Updating https://github.com/dblock/carrierwave-mongoid.git
       Updating https://github.com/dblock/stringex.git
       Updating https://github.com/macreery/jammit.git
       Updating https://github.com/collectiveidea/delayed_job.git
       Updating https://github.com/macreery/analytical.git
       Updating https://github.com/rightscale/right_aws.git
       Updating https://github.com/dblock/to_xls.git
       Updating https://github.com/37signals/mail_view.git
       Updating https://github.com/jilion/useragent.git
       find: `spec': No such file or directory
       Updating https://github.com/rack/rack-contrib.git
       Updating https://github.com/aaw/sunspot.git
       Updating https://github.com/aaw/sunspot_mongo.git
       Updating https://github.com/macreery/typhoeus.git
       Updating https://github.com/dblock/SandboxedERB.git
       Updating https://github.com/rightscale/right_http_connection.git
       Fetching https://github.com/dblock/barista.git
       Fetching https://github.com/mark-moseley/linecache.git
       Fetching https://github.com/pivotal/jasmine-gem.git
       Fetching gem metadata from http://rubygems.org/.......
       Fetching gem metadata from http://rubygems.org/..
/app/slug-compiler/lib/utils.rb:66:in `block (2 levels) in spawn': command='/app/slug-compiler/lib/../../tmp/buildpacks/ruby/bin/compile /tmp/build_3guurutwofq86 /app/tmp/repo.git/.cache' exit_status=0 out='' at=timeout elapsed=900.105696439743 (Utils::TimeoutError)
  from /app/slug-compiler/lib/utils.rb:52:in `loop'
	from /app/slug-compiler/lib/utils.rb:52:in `block in spawn'
	from /app/slug-compiler/lib/utils.rb:47:in `popen'
	from /app/slug-compiler/lib/utils.rb:47:in `spawn'
	from /app/slug-compiler/lib/buildpack.rb:37:in `block in compile'
	from /app/slug-compiler/lib/buildpack.rb:35:in `fork'
	from /app/slug-compiler/lib/buildpack.rb:35:in `compile'
	from /app/slug-compiler/lib/slug.rb:497:in `block in run_buildpack'
	from /app/slug-compiler/lib/utils.rb:121:in `log'
	from /app/slug-compiler/lib/slug.rb:748:in `log'
	from /app/slug-compiler/lib/slug.rb:496:in `run_buildpack'
	from /app/slug-compiler/lib/slug.rb:125:in `block (2 levels) in compile'
	from /app/slug-compiler/lib/utils.rb:102:in `block in timeout'
	from /usr/local/lib/ruby/1.9.1/timeout.rb:58:in `timeout'
	from /app/slug-compiler/lib/utils.rb:102:in `rescue in timeout'
	from /app/slug-compiler/lib/utils.rb:97:in `timeout'
	from /app/slug-compiler/lib/slug.rb:114:in `block in compile'
	from /app/slug-compiler/lib/utils.rb:121:in `log'
	from /app/slug-compiler/lib/slug.rb:748:in `log'
	from /app/slug-compiler/lib/slug.rb:113:in `compile'
	from /app/slug-compiler/bin/slugc:85:in `block in <main>'
	from /app/slug-compiler/lib/slug.rb:505:in `block in lock'
	from /app/slug-compiler/lib/repo_lock.rb:44:in `call'
	from /app/slug-compiler/lib/repo_lock.rb:44:in `run'
	from /app/slug-compiler/lib/slug.rb:505:in `lock'
	from /app/slug-compiler/bin/slugc:66:in `<main>'
 !     Heroku push rejected, failed to compile Ruby/rails app