heroku/heroku-buildpack-ruby — pull request #57 by pivotalvfiles (2012-12-31 22:01:04+00:00)
Title: Print warning when rakefile appears to be broken

Related to https://github.com/heroku/heroku-buildpack-ruby/pull/34, but a little simpler and naive.

It will print a warning if the dry-run fails, but the error doesn't incude the _Don't know how to build task '...'_ message. Otherwise the behavior is as you would expect.