rbx test_array.rb -n test_LSHIFT
require 'test/unit/testcase' has been deprecated
An exception has occurred:
    Coercion error: obj.to_int did NOT return a Fixnum (was Bignum) (TypeError)

Backtrace:
                          Type.coerce_to at kernel/core/kernel.rb:30
                             Array#first at kernel/core/array.rb:713
             TestArray.__class_init__ {} at test_array.rb:1332
               Enumerable(Array)#find {} at kernel/core/enumerable.rb:251
                              Array#each at kernel/core/array.rb:572
                  Enumerable(Array)#find at kernel/core/enumerable.rb:251
    TestArray.__class_init__ (TestArray) at test_array.rb:1326
                       Object#__script__ at test_array.rb:3
                CompiledMethod#as_script at kernel/core/compiled_method.rb:407
                     Compile.single_load at kernel/core/compile.rb:253
             Compile.load_from_extension at kernel/core/compile.rb:326
                       Object#__script__ at kernel/loader.rb:277
Loaded suite test_array

An error has occured: Segmentation fault (SIGSEGV) (11)

Ruby backtrace:
0xb738d008 Hash#each_pair+0 in kernel/core/hash.rb:236
 0x9a4ce34 Class#run_finalizers+19 in kernel/core/objectspace.rb:47
 0x93e3104 <none>#<block>+12 in kernel/core/objectspace.rb:64
 0x93e3164 <none>#<block>+22 in kernel/core/thread.rb:60

VM Registers:
IP: 0000
SP: 0000
Exception: none
[vvs@fedora:31] -- << /opt/work/ruby19-dev.git/test/ruby (ruby_1_9)>>