| "make update-download -j20" exit with 0. | 
 | "make update-src      -j20" exit with 0. | 
 | "make after-update    -j20" exit with 0. | 
 | "make miniruby -j20" exit with 0. | 
 | "make ruby -j20" exit with 0. | 
 | "make all -j20" exit with 0. | 
 | "make install -j20" exit with 0. | 
 | "make yes-btest TESTOPTS='-q -j20'" exit with 0. | 
 |   | 
 | "make yes-test-basic TESTS='-j20'" exit with 0. | 
 | "make yes-test-all TESTOPTS='--stderr-on-failure' TESTS='-j20'" exit with 512. | 
 |   1) Failure: | 
 | TestEncoding#test_ractor_lazy_load_encoding_concurrently [/tmp/ruby/src/trunk/test/ruby/test_encoding.rb:141]: | 
 | assert_separately failed with error message | 
 | pid 1005171 exit 1 | 
 | | #<Thread:0x000070288117b758 run> terminated with exception (report_on_exception is true): | 
 | | -:20:in 'String#force_encoding': wrong encoding index 92 for Windows-874 (expected 32) (EncodingError) | 
 | | 	from -:20:in 'block (3 levels) in <main>' | 
 | | 	from -:19:in 'Array#each' | 
 | | 	from -:19:in 'block (2 levels) in <main>' | 
 | | /tmp/ruby/src/trunk/tool/lib/core_assertions.rb:297:in 'Marshal.dump': no _dump_data is defined for class Ractor (TypeError) | 
 | | 	from /tmp/ruby/src/trunk/tool/lib/core_assertions.rb:297:in 'block in Test::Unit::CoreAssertions#separated_runner' | 
 | | -:25:in 'Ractor.select': thrown by remote Ractor. (Ractor::RemoteError) | 
 | | 	from -:25:in '<main>' | 
 | | -:20:in 'String#force_encoding': wrong encoding index 92 for Windows-874 (expected 32) (EncodingError) | 
 | | 	from -:20:in 'block (3 levels) in <main>' | 
 | | 	from -:19:in 'Array#each' | 
 | | 	from -:19:in 'block (2 levels) in <main>' | 
 | | -:25:in 'Ractor.select': thrown by remote Ractor. (Ractor::RemoteError) | 
 | | 	from -:25:in '<main>' | 
 | | -:20:in 'String#force_encoding': wrong encoding index 92 for Windows-874 (expected 32) (EncodingError) | 
 | | 	from -:20:in 'block (3 levels) in <main>' | 
 | | 	from -:19:in 'Array#each' | 
 | | 	from -:19:in 'block (2 levels) in <main>' | 
 | make: *** [uncommon.mk:910: yes-test-all] Error 1 | 
 | "make yes-test-rubyspec MSPECOPT='--error-output stderr -j' TESTS='-j20'" exit with 0. |