You can clone with
HTTPS or Subversion.
RubyGems 1.5.2 doesn't output a "Successfully" message when running gem build, which is something the Bundler rake tasks look for.
As a result the gem is built but not moved in to pkg and Bundler kills the rake tasks without outputting anything particularly helpful.
I'll fork and fix later using #success? or something similar, assuming RubyGems exits with a non-zero status when a build fails.
Is this still an issue? If so, what's a good way to reproduce it?
No response given. Closing. Feel free to raise a new issue with details as described in ISSUES.md