All weekend pretty much all my scrapers have been failing, with the error:
e/tmp/buildpacks/heroku-buildpack-ruby/lib/language_pack/shell_helpers.rb:49:in `run!': Command: 'set -o pipefail; curl --fail --retry 3 --retry-delay 1 --connect-timeout 30 --max-time 180 https://s3-external-1.amazonaws.com/heroku-buildpack-ruby/bundler-1.7.12.tgz -s -o - | tar zxf - ’ failed unexpectedly: (LanguagePack::Fetcher::FetchError)
gzip: stdin: unexpected end of file
tar: Child returned status 1
tar: Error is not recoverable: exiting now