gistfile1.txt

$ bin/rbx -e 'p Socket.getaddrinfo("127.0.0.1", nil)[0][2]'
An exception occurred evaluating command line code
    Missing or uninitialized constant: Object::Socket (NameError)

Backtrace:
    Module(Class)#const_missing at kernel/common/module.rb:533
       { } in Object#__script__ at -e:1
  Kernel(Rubinius::Loader)#eval at kernel/common/eval.rb:115
         Rubinius::Loader#evals at kernel/loader.rb:517
          Rubinius::Loader#main at kernel/loader.rb:649
          Rubinius::Loader.main at kernel/loader.rb:689
              Object#__script__ at kernel/loader.rb:700