=> Bootstrap dependency digest>=20010302: found digest-20121220
===> Building for ruby18-rdoc-4.0.1
=> Removing backup files of patch before build
WARNING:  bin/rdoc is not executable
WARNING:  bin/ri is not executable
  Successfully built RubyGem
  Name: rdoc
  Version: 4.0.1
  File: rdoc-4.0.1.gem
=> Unwrapping files-to-be-installed.