/usr/jruby/lib/ruby/1.8/fileutils.rb:243:in `fu_mkdir': Unknown error - mkdir failed (SystemCallError) from /usr/jruby/lib/ruby/1.8/fileutils.rb:217:in `mkdir_p' from /usr/jruby/lib/ruby/1.8/fileutils.rb:215:in `reverse_each' from /usr/jruby/lib/ruby/1.8/fileutils.rb:215:in `mkdir_p' from /usr/jruby/lib/ruby/1.8/fileutils.rb:201:in `each' from /usr/jruby/lib/ruby/1.8/fileutils.rb:201:in `mkdir_p'