cremes$ bin/rbx
irb(main):001:0> require 'spec/subtend/ext/subtend_object'
=> true
irb(main):002:0> a = SubtendObject.new
PrimitiveFailure: Bignum#radix_to_s primitive failed
   from Bignum(SubtendObject)#radix_to_s at kernel/bootstrap/bignum.rb:122
   from Bignum(SubtendObject)#inspect at kernel/bootstrap/bignum.rb:132
   from IRB::Irb(IRB::IrbRubinius)#output_value at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb.rb:308
   from IRB::IrbRubinius#process_statements {} at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb/rubinius.rb:19
   from IRB::Irb(IRB::IrbRubinius)#signal_status at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb.rb:269
   from IRB::IrbRubinius#process_statements {} at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb/rubinius.rb:5
   from RubyLex#each_top_level_statement {} at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb/ruby-lex.rb:244
   from Kernel(RubyLex)#catch {} at kernel/core/throw_catch.rb:63
   from ThrownValue.register at kernel/core/throw_catch.rb:46
   from Kernel(RubyLex)#catch at kernel/core/throw_catch.rb:62
   from RubyLex#each_top_level_statement at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb/ruby-lex.rb:229
   from IRB::IrbRubinius#process_statements at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb/rubinius.rb:4
   from IRB::Irb(IRB::IrbRubinius)#eval_input at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb.rb:152
   from IRB.start {} at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb.rb:76
   from Kernel(Module)#catch {} at kernel/core/throw_catch.rb:63
   from ThrownValue.register at kernel/core/throw_catch.rb:46
   from Kernel(Module)#catch at kernel/core/throw_catch.rb:62
   from IRB.start at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/irb.rb:75
   from Object#__script__ at /Volumes/susie/cremes/developer/projects/ruby/rubinius/code/lib/bin/irb:13
   from CompiledMethod#as_script at kernel/core/compiled_method.rb:407
   from Compile.single_load at kernel/core/compile.rb:248
   from Compile.unified_load at kernel/core/compile.rb:120
   from Kernel(Object)#load at kernel/core/compile.rb:405
   from Object#__script__ at kernel/loader.rb:244
irb(main):003:0> quit