$ ../../shotgun/rubinius -pss 10 bm_app_answer.rb 

Total SendSites: 15532
Top 10, by sends:
sender                          | name              | hits      | misses
========================================================================
An exception occured while running sendsite profiler:
    No method 'module' on an instance of NilClass. (NoMethodError)

Backtrace:
    Kernel(NilClass)#module (method_missing_cv) at kernel/core/kernel.rb:606
            Sampler::SendSites#show_stats {} at kernel/core/sampler.rb:191
                                  Array#each at kernel/core/array.rb:573
               Sampler::SendSites#show_stats at kernel/core/sampler.rb:190
                           Object#__script__ at kernel/loader.rb:308