[dirkjan@mrkrabs-freebsd ~/rubinius]$ ./shotgun/rubinius
An exception has occurred:
    Missing or uninitialized constant: AlreadyDefinedToken (NameError)

Backtrace:
                     Module#const_missing at kernel/core/module.rb:595
                      RubyToken.def_token at /usr/home/dirkjan/rubinius/lib/irb/ruby-token.rb:253
             RubyToken.__module_init__ {} at /usr/home/dirkjan/rubinius/lib/irb/ruby-token.rb:271
                               Array#each at kernel/core/array.rb:573
    RubyToken.__module_init__ (RubyToken) at /usr/home/dirkjan/rubinius/lib/irb/ruby-token.rb:270
                        Object#__script__ at /usr/home/dirkjan/rubinius/lib/irb/ruby-token.rb:12
                 CompiledMethod#as_script at kernel/core/compiled_method.rb:209
                      Compile.single_load at kernel/core/compile.rb:226
                  Compile.unified_load {} at kernel/core/compile.rb:139
                               Array#each at kernel/core/array.rb:573
                     Compile.unified_load at kernel/core/compile.rb:120
                   Kernel(Object)#require at kernel/core/compile.rb:431
                        Object#__script__ at /usr/home/dirkjan/rubinius/lib/irb/ruby-lex.rb:15
                 CompiledMethod#as_script at kernel/core/compiled_method.rb:209
                      Compile.single_load at kernel/core/compile.rb:221
                  Compile.unified_load {} at kernel/core/compile.rb:139
                               Array#each at kernel/core/array.rb:573
                     Compile.unified_load at kernel/core/compile.rb:120
                   Kernel(Object)#require at kernel/core/compile.rb:431
                        Object#__script__ at /usr/home/dirkjan/rubinius/lib/irb.rb:19
                 CompiledMethod#as_script at kernel/core/compiled_method.rb:209
                      Compile.single_load at kernel/core/compile.rb:221
                  Compile.unified_load {} at kernel/core/compile.rb:139
                               Array#each at kernel/core/array.rb:573
                     Compile.unified_load at kernel/core/compile.rb:120
                   Kernel(Object)#require at kernel/core/compile.rb:431
                        Object#__script__ at /usr/home/dirkjan/rubinius/lib/bin/irb.rb:10
                 CompiledMethod#as_script at kernel/core/compiled_method.rb:209
                      Compile.single_load at kernel/core/compile.rb:221
                  Compile.unified_load {} at kernel/core/compile.rb:139
                               Array#each at kernel/core/array.rb:573
                     Compile.unified_load at kernel/core/compile.rb:120
                   Kernel(Object)#require at kernel/core/compile.rb:431
                        Object#__script__ at kernel/loader.rb:221