COMMIT Array.product has been included in ruby 1.8.7, ruby_version updated to run specs with ruby 1.8.7 or upper	http://github.com/rubyspec/rubyspec/commit/76f4c7648ed5a3b6024eab18ec41d0bee4da8437

--- 20091029T075520
+++ 20091030T080638
@@ -1,1477 +1,1477 @@
 .#<n> test_thread.rb:172
 .#<n> test_thread.rb:183
 .#<n> test_thread.rb:191
-.#<n> test_thread.rb:206
+F#<n> test_thread.rb:206
 .#<n> test_thread.rb:219
 .#<n> test_thread.rb:235
 .#<n> test_thread.rb:241
@@ -1985,7 +1985,24 @@
 test_attr.rb #<n> test_attr.rb:1
 .#<n> test_attr.rb:27
 .
-PASS 940 tests
+#<n> test_thread.rb:191:
+   begin
+     100.times do |i|
+       begin
+         Thread.start(Thread.current) {|u| u.raise }
+         raise
+       rescue
+       ensure
+       end
+     end
+   rescue
+     100
+   end
+  #=> "" (expected "100")  [ruby-dev:31371]
+FAIL 1/940 tests failed
+make: *** [btest] エラー 1
+exit 2
+failed(btest)
 == test.rb # <time>
 + ./miniruby sample/test.rb
 
@@ -16845,6 +16862,7 @@
 - returns converted arguments using :to_ary
 - returns the expected result
 - has no required argument
+- returns an empty array when the argument is an empty array
 
 /home/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/array/push_spec.rb
 Array#push