Heroku Build Failure

gistfile1.txt

-----> Compiling Ruby/Rails
-----> Using Ruby version: ruby-2.0.0
-----> Installing dependencies using 1.5.2
       New app detected loading default bundler cache
 !
 !     Command: 'set -o pipefail; curl --fail --retry 3 --retry-delay 1 --connect-timeout 3 --max-time 30 https://s3-external-1.amazonaws.com/heroku-buildpack-ruby/ruby-2.0.0-p481-default-cache.tgz -s -o - | tar zxf -' failed unexpectedly:
 !     
 !     gzip: stdin: unexpected end of file
 !     tar: Child returned status 1
 !     tar: Exiting with failure status due to previous errors
 !

 !     Push rejected, failed to compile Ruby app