gistfile1.txt

An exception occurred running /Users/stan/.rvm/gems/rbx-1.0.0-rc5/bin/unicorn
    directory for pid=/Users/stan/tmp/unicorn.pid not writable (ArgumentError)

Backtrace:
   Unicorn::Configurator#reload {} at /Users/stan/.rvm/gems/rbx-1.0.0-rc5/gems/unicorn-0.99.0/lib/unicorn/configurator.rb:58
                        Array#each at kernel/bootstrap/array.rb:158
      Unicorn::Configurator#reload at /Users/stan/.rvm/gems/rbx-1.0.0-rc5/gems/unicorn-0.99.0/lib/unicorn/configurator.rb:54
  Unicorn::Configurator#initialize at /Users/stan/.rvm/gems/rbx-1.0.0-rc5/gems/unicorn-0.99.0/lib/unicorn/configurator.rb:46
          Class#subclass_new (new) at kernel/alpha.rb:94
                #<Class:0x462>.new at kernel/common/struct.rb:69
    Unicorn::HttpServer#initialize at /Users/stan/.rvm/gems/rbx-1.0.0-rc5/gems/unicorn-0.99.0/lib/unicorn.rb:216
          Class#subclass_new (new) at kernel/alpha.rb:94
                #<Class:0x464>.new at kernel/common/struct.rb:69
                       Unicorn.run at /Users/stan/.rvm/gems/rbx-1.0.0-rc5/gems/unicorn-0.99.0/lib/unicorn.rb:28
                   main.__script__ at /Users/stan/.rvm/gems/rbx-1.0.0-rc5/gems/unicorn-0.99.0/bin/unicorn:126
               Kernel(Object)#load at kernel/common/kernel.rb:638
                   main.__script__ at /Users/stan/.rvm/gems/rbx-1.0.0-rc5/bin/unicorn:19
  Rubinius::CodeLoader#load_script at kernel/delta/codeloader.rb:65
  Rubinius::CodeLoader.load_script at kernel/delta/codeloader.rb:88
           Rubinius::Loader#script at kernel/loader.rb:435
             Rubinius::Loader#main at kernel/loader.rb:526
             Rubinius::Loader.main at kernel/loader.rb:552
                 Object#__script__ at kernel/loader.rb:564