dokku: Why is ruby buildback getting node.js and failing?

This really sucks that my ability to deploy my app is dependent on the nodejs.org server’s uptime

       Bundle completed (12.68s)
       Cleaning up the bundler cache.
/tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/shell_helpers.rb:49:in `       !
       !     Command: 'set -o pipefail; curl --fail --retry 3 --retry-delay 1 --connect-timeout 5 --max-time 30 http://nodejs.org/dist/v0.10.30/node-v0.10.30-linux-x64.tar.gz -s -o - | tar zxf - node-v0.10.30-linux-x64/bin/node' failed unexpectedly:
       !
       !     gzip: stdin: unexpected end of file
       !     tar: Child returned status 1
       !     tar: Error is not recoverable: exiting now
Command: 'set -o pipefail; curl --fail --retry 3 --retry-delay 1 --connect-timeout 5 --max-time 30 http://nodejs.org/dist/v0.10.30/node-v0.10.30-linux-x64.tar.gz -s -o - | tar zxf - node-v0.10.30-linux-x64/bin/node' failed unexpectedly: (LanguagePack::Fetcher::FetchError)

gzip: stdin: unexpected end of file
tar: Child returned status 1
tar: Error is not recoverable: exiting now
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/fetcher.rb:24:in `fetch_untar'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/helpers/node_installer.rb:39:in `install'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:404:in `block in install_binary'
       !
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:402:in `chdir'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:402:in `install_binary'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:391:in `block (2 levels) in install_binaries'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:391:in `each'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:391:in `block in install_binaries'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:18:in `block (2 levels) in instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:40:in `yield_with_block_depth'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:17:in `block in instrument'
        from /usr/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:16:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:47:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:43:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:390:in `install_binaries'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:97:in `block (2 levels) in compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:672:in `call'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:672:in `allow_git'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:92:in `block in compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:18:in `block (2 levels) in instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:40:in `yield_with_block_depth'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:17:in `block in instrument'
        from /usr/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:16:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:47:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:43:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/ruby.rb:83:in `compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/rails2.rb:49:in `block in compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:18:in `block (2 levels) in instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:40:in `yield_with_block_depth'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:17:in `block in instrument'
        from /usr/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:16:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:47:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:43:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/rails2.rb:47:in `compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/rails3.rb:38:in `block in compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:18:in `block (2 levels) in instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:40:in `yield_with_block_depth'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:17:in `block in instrument'
        from /usr/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:16:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:47:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:43:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/rails3.rb:37:in `compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/rails4.rb:41:in `block in compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:18:in `block (2 levels) in instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:40:in `yield_with_block_depth'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:17:in `block in instrument'
        from /usr/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:16:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:47:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:43:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/rails4.rb:40:in `compile'
        from /tmp/buildpacks/heroku-buildpack-ruby/bin/compile:16:in `block (2 levels) in <main>'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/base.rb:124:in `log'
        from /tmp/buildpacks/heroku-buildpack-ruby/bin/compile:15:in `block in <main>'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:35:in `call'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:35:in `block in trace'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:18:in `block (2 levels) in instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:40:in `yield_with_block_depth'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:17:in `block in instrument'
        from /usr/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:16:in `instrument'
        from /tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/instrument.rb:35:in `trace'
        from /tmp/buildpacks/heroku-buildpack-ruby/bin/compile:11:in `<main>'
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