installing default gems:      /Users/yermej/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/gems/1.9.1 (cache, doc, gems, specifications)
/Users/yermej/.rvm/src/ruby-1.9.3-p286/lib/fileutils.rb:244:in `mkdir': File exists - /Users/yermej/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/gems/1.9.1 (Errno::EEXIST)
	from /Users/yermej/.rvm/src/ruby-1.9.3-p286/lib/fileutils.rb:244:in `fu_mkdir'
	from /Users/yermej/.rvm/src/ruby-1.9.3-p286/lib/fileutils.rb:221:in `block (2 levels) in mkdir_p'
	from /Users/yermej/.rvm/src/ruby-1.9.3-p286/lib/fileutils.rb:219:in `reverse_each'
	from /Users/yermej/.rvm/src/ruby-1.9.3-p286/lib/fileutils.rb:219:in `block in mkdir_p'
	from /Users/yermej/.rvm/src/ruby-1.9.3-p286/lib/fileutils.rb:205:in `each'
	from /Users/yermej/.rvm/src/ruby-1.9.3-p286/lib/fileutils.rb:205:in `mkdir_p'
	from ./tool/rbinstall.rb:183:in `makedirs'
	from ./tool/rbinstall.rb:284:in `prepare'
	from ./tool/rbinstall.rb:539:in `block in <main>'
	from ./tool/rbinstall.rb:597:in `call'
	from ./tool/rbinstall.rb:597:in `block (2 levels) in <main>'
	from ./tool/rbinstall.rb:594:in `each'
	from ./tool/rbinstall.rb:594:in `block in <main>'
	from ./tool/rbinstall.rb:590:in `each'
	from ./tool/rbinstall.rb:590:in `<main>'
make: *** [do-install-nodoc] Error 1