Result of trunk_gcc8@silicon-docker at 2020-09-14 20:22:29 +0900

• NG (ccb944fcfe) [LOG]

• Linux silicon-docker 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1+deb9u5 (2019-08-11) x86_64 x86_64 x86_64 GNU/Linux
  

• rev: ccb944fcfe
  test-all : 20927 tests, 5654146 assertions, 0 failures, 0 errors, 142 skips
  test-spec: 
  exit statuses:
    "rm -f .revision.time" exit with 0.
    "make update-unicode  -j6" exit with 0.
    "make update-download -j6" exit with 0.
    "make update-rubyspec -j6" exit with 0.
    "make update-src      -j6" exit with 0.
    "make after-update    -j6" exit with 0.
    "make miniruby -j6" exit with 0.
    "make ruby -j6" exit with 0.
    "make all -j6" exit with 0.
    "make install -j6" exit with 0.
    "make yes-btest TESTS='-j6'" exit with 0.
    "make yes-test-basic TESTS='-j6'" exit with 0.
    "make yes-test-all TESTS='-j6'" exit with 0.
  Logfile: /home/ko1/ruby/logs/brlog.trunk_gcc8.20200914-081403
  #<BuildRuby:0x00005582639e10c0
   @BUILD_DIR="/tmp/ruby/v3/build",
   @INSTALL_DIR="/tmp/ruby/v3/install",
   @REPOSITORY="https://github.com/ruby/ruby.git",
   @REPOSITORY_TYPE=:git,
   @SRC_DIR="/tmp/ruby/v3/src",
   @TARGET_BUILD_DIR="/tmp/ruby/v3/build/trunk_gcc8",
   @TARGET_INSTALL_DIR="/tmp/ruby/v3/install/trunk_gcc8",
   @TARGET_NAME="trunk_gcc8",
   @TARGET_SRC_DIR="/tmp/ruby/v3/src/trunk_gcc8",
   @build_opts="-j6",
   @configure_opts=["CC=gcc-8"],
   @gist=false,
   @git_branch=nil,
   @incremental=true,
   @logfile="/home/ko1/ruby/logs/brlog.trunk_gcc8.20200914-081403",
   @quiet=false,
   @ruby_env=[["RUBY_DEBUG", "ci"]],
   @steps=
    ["checkout",
     "autoconf",
     "configure",
     "build_up",
     "build_miniruby",
     "build_ruby",
     "build_all",
     "build_install",
     "test_btest",
     "test_basic",
     "test_all",
     "test_rubyspec"],
   @svn_revision=nil,
   @test_opts="TESTS='-j6'",
   @timeout=10800>
                             user     system      total        real
  checkout               0.000000   0.000000   0.000000 (  0.000030)
  autoconf               0.000000   0.000000   0.000000 (  0.000055)
  configure              0.000000   0.000000   0.000000 (  0.000063)
  build_up             From https://github.com/ruby/ruby
     7fca274..ccb944f  master     -> origin/master
    0.012000   0.004000   8.876000 (  9.863283)
  build_miniruby         0.000000   0.004000   0.192000 (  0.221405)
  build_ruby             0.000000   0.004000   4.104000 (  4.152727)
  build_all              0.020000   0.004000  15.016000 (  8.285901)
  build_install          0.032000   0.000000  10.840000 (  6.712684)
  test_btest           test_attr.rb             ..
  test_autoload.rb         ........
  test_block.rb            ..........................................................
  test_class.rb            ................................................
  test_env.rb              ..
  test_eval.rb             .....................................
  test_exception.rb        ..................................
  test_fiber.rb            .....
  test_finalizer.rb        .
  test_flip.rb             .
  test_flow.rb             ..............................................................
  test_fork.rb             ....
  test_gc.rb               ..
  test_insns.rb            .......................................................................................................................................................................................................................................................................................................................................................................................................
  test_io.rb               .........
  test_jump.rb             .............................
  test_literal.rb          ............................................................................................................................................................
  test_literal_suffix.rb   ................................................
  test_load.rb             ..
  test_marshal.rb          .
  test_massign.rb          ..................................
  test_method.rb           ...............................................................................................................................................................................................................................
  test_objectspace.rb      ......
  test_proc.rb             .....................................
  test_ractor.rb           ....................................
  test_string.rb           .
  test_struct.rb           .
  test_syntax.rb           ............................................................................................................................................................
  test_thread.rb           .................................................
  Fiber count: 10000 (skipping)
  PASS all 1443 tests
    0.004000   0.000000  46.208000 ( 61.443950)
  test_basic             0.012000   0.000000   0.652000 (  0.824382)
  test_all             Skipping Gem::PackageTask tests.  rake not found.
    0.004000   0.000000 1210.584000 (411.325753)
  test_rubyspec        $ /tmp/ruby/v3/build/trunk_gcc8/miniruby -I/tmp/ruby/v3/src/trunk_gcc8/lib /tmp/ruby/v3/src/trunk_gcc8/tool/runruby.rb --archdir=/tmp/ruby/v3/build/trunk_gcc8 --extout=.ext -- /tmp/ruby/v3/src/trunk_gcc8/spec/mspec/bin/mspec-run -B /tmp/ruby/v3/src/trunk_gcc8/spec/default.mspec
  $$$ #<Timeout::Error: execution expired>
  ### enter analyzing mode for stuck processes
  
  $$$ ps jx
   PPID   PID  PGID   SID TTY      TPGID STAT   UID   TIME COMMAND
     11    12    12    12 ?           -1 Ss    1001   0:00 sh build-loop.sh trunk_gcc8 --incremental --process-num=6
     12 10835    12    12 ?           -1 Sl    1001   0:00 ruby ./br.rb build_report trunk_gcc8 --incremental --process-num=6
  10835 10837    12    12 ?           -1 Sl    1001   0:00 ruby /home/ko1/ruby/build-ruby/build-ruby.rb --target_name=trunk_gcc8 --logfile=/home/ko1/ruby/logs/brlog.trunk_gcc8.20200914-081403 --root_dir=/tmp/ruby --timeout=10800 --configure_opts=CC=gcc-8 --incremental --process-num=6
  10837 24497    12    12 ?           -1 S     1001   0:00 sh -c make yes-test-rubyspec TESTS='-j6'
  24497 24499    12    12 ?           -1 S     1001   0:00 make yes-test-rubyspec TESTS=-j6
  24499 24771    12    12 ?           -1 S     1001   0:24 /tmp/ruby/v3/src/trunk_gcc8/spec/mspec/bin/mspec-run
  10837 26288    12    12 ?           -1 R     1001   0:00 ps jx
  {11=>[12], 12=>[10835], 10835=>[10837], 10837=>[24497, 26288], 24497=>[24499], 24499=>[24771]}
  "gdb -p 24771 -x /home/ko1/ruby/build-ruby/gdbscript -batch -quiet"
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
  39	../sysdeps/unix/sysv/linux/ppoll.c: No such file or directory.
  0x00007fd6f148bcf6 in __GI_ppoll (fds=fds@entry=0x7fffdde04e80, nfds=nfds@entry=2, timeout=<optimized out>, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
  >>> Threads  Id   Target Id         Frame 
  * 1    Thread 0x7fd6f2a20740 (LWP 24771) "ruby" 0x00007fd6f148bcf6 in __GI_ppoll (fds=fds@entry=0x7fffdde04e80, nfds=nfds@entry=2, timeout=<optimized out>, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
  >>> Machine level backtrace
  
  Thread 1 (Thread 0x7fd6f2a20740 (LWP 24771)):
  #0  0x00007fd6f148bcf6 in __GI_ppoll (fds=fds@entry=0x7fffdde04e80, nfds=nfds@entry=2, timeout=<optimized out>, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
  #1  0x000055f1f48912c0 in rb_thread_wait_for_single_fd (fd=<optimized out>, events=events@entry=4, timeout=timeout@entry=0x0) at /tmp/ruby/v3/src/trunk_gcc8/hrtime.h:148
  #2  0x000055f1f475a167 in rb_wait_for_single_fd (fd=<optimized out>, events=events@entry=4, timeout=timeout@entry=0x0) at /tmp/ruby/v3/src/trunk_gcc8/io.c:1396
  #3  0x000055f1f4890c64 in rb_thread_wait_fd_rw (read=0, fd=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/thread.c:4246
  #4  rb_thread_fd_writable (fd=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/thread.c:4263
  #5  0x00007fd66cc7fbcd in io_spec_rb_thread_fd_writable (self=<optimized out>, io=<optimized out>) at io_spec.c:33
  #6  0x000055f1f48c1024 in vm_call_cfunc_with_frame () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2610
  #7  0x000055f1f48c12a7 in vm_call_cfunc (ec=ec@entry=0x55f1f4d304b0, reg_cfp=reg_cfp@entry=0x7fd6f2a1e980, calling=calling@entry=0x7fffdde05160, cd=cd@entry=0x55f1f785df90) at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2631
  #8  0x000055f1f48d7cfe in vm_call_method_each_type () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:3109
  #9  0x000055f1f48d8594 in vm_call_method (ec=0x55f1f4d304b0, cfp=0x7fd6f2a1e980, calling=<optimized out>, cd=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:351
  #10 0x000055f1f48c3a09 in vm_sendish (ec=0x55f1f4d304b0, reg_cfp=0x7fd6f2a1e980, cd=0x55f1f785df90, block_handler=<optimized out>, method_explorer=0x55f1f48c3880 <vm_search_method_wrap>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:337
  #11 0x000055f1f48d119e in vm_exec_core () at ../../src/trunk_gcc8/insns.def:799
  #12 0x000055f1f48ca46e in rb_vm_exec () at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1982
  #13 0x000055f1f48da531 in vm_yield_with_cref (is_lambda=0, cref=<optimized out>, kw_splat=0, argv=0x7fd6f291f438, argc=0, ec=0x55f1f4d304b0) at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1205
  #14 yield_under () at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1769
  #15 0x000055f1f48c1024 in vm_call_cfunc_with_frame () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2610
  #16 0x000055f1f48c3a09 in vm_sendish (ec=0x55f1f4d304b0, reg_cfp=0x7fd6f2a1e9f0, cd=0x55f1f50cc0d0, block_handler=<optimized out>, method_explorer=0x55f1f48c3880 <vm_search_method_wrap>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:337
  #17 0x000055f1f48d2f68 in vm_exec_core () at ../../src/trunk_gcc8/insns.def:780
  #18 0x000055f1f48ca46e in rb_vm_exec () at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1982
  #19 0x000055f1f48db235 in vm_yield (kw_splat=0, argv=0x7fffdde057a0, argc=1, ec=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1205
  #20 rb_yield_0 (argc=1, argv=0x7fffdde057a0) at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1141
  #21 rb_yield_1 (val=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1147
  #22 rb_yield () at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1157
  #23 0x000055f1f48ee088 in rb_ary_all_p () at /tmp/ruby/v3/src/trunk_gcc8/include/ruby/internal/core/rarray.h:172
  #24 0x000055f1f48c1024 in vm_call_cfunc_with_frame () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2610
  #25 0x000055f1f48c3a09 in vm_sendish (ec=0x55f1f4d304b0, reg_cfp=0x7fd6f2a1ea98, cd=0x55f1f5042270, block_handler=<optimized out>, method_explorer=0x55f1f48c3880 <vm_search_method_wrap>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:337
  #26 0x000055f1f48d2f68 in vm_exec_core () at ../../src/trunk_gcc8/insns.def:780
  #27 0x000055f1f48ca46e in rb_vm_exec () at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1982
  #28 0x000055f1f48db235 in vm_yield (kw_splat=0, argv=0x7fffdde05b50, argc=1, ec=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1205
  #29 rb_yield_0 (argc=1, argv=0x7fffdde05b50) at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1141
  #30 rb_yield_1 (val=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1147
  #31 rb_yield () at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1157
  #32 0x000055f1f48f459c in rb_ary_each (ary=94497714678600) at /tmp/ruby/v3/src/trunk_gcc8/include/ruby/internal/core/rarray.h:172
  #33 0x000055f1f48c1024 in vm_call_cfunc_with_frame () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2610
  #34 0x000055f1f48c3a09 in vm_sendish (ec=0x55f1f4d304b0, reg_cfp=0x7fd6f2a1ebb0, cd=0x55f1f50d6610, block_handler=<optimized out>, method_explorer=0x55f1f48c3880 <vm_search_method_wrap>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:337
  #35 0x000055f1f48d2f68 in vm_exec_core () at ../../src/trunk_gcc8/insns.def:780
  #36 0x000055f1f48ca46e in rb_vm_exec () at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1982
  #37 0x000055f1f48db235 in vm_yield (kw_splat=0, argv=0x7fffdde05ee0, argc=1, ec=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1205
  #38 rb_yield_0 (argc=1, argv=0x7fffdde05ee0) at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1141
  #39 rb_yield_1 (val=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1147
  #40 rb_yield () at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1157
  #41 0x000055f1f48f459c in rb_ary_each (ary=94497714861120) at /tmp/ruby/v3/src/trunk_gcc8/include/ruby/internal/core/rarray.h:172
  #42 0x000055f1f48c1024 in vm_call_cfunc_with_frame () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2610
  #43 0x000055f1f48c3a09 in vm_sendish (ec=0x55f1f4d304b0, reg_cfp=0x7fd6f2a1ec58, cd=0x55f1f50d6680, block_handler=<optimized out>, method_explorer=0x55f1f48c3880 <vm_search_method_wrap>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:337
  #44 0x000055f1f48d2f68 in vm_exec_core () at ../../src/trunk_gcc8/insns.def:780
  #45 0x000055f1f48ca46e in rb_vm_exec () at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1982
  #46 0x000055f1f4774afb in load_iseq_eval (fname=94497708871000, ec=0x55f1f4d304b0) at /tmp/ruby/v3/src/trunk_gcc8/load.c:594
  #47 rb_load_internal (wrap=<optimized out>, fname=94497708871000) at /tmp/ruby/v3/src/trunk_gcc8/load.c:652
  #48 rb_f_load () at /tmp/ruby/v3/src/trunk_gcc8/load.c:726
  #49 0x000055f1f48c1024 in vm_call_cfunc_with_frame () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2610
  #50 0x000055f1f48c3a09 in vm_sendish (ec=0x55f1f4d304b0, reg_cfp=0x7fd6f2a1ed70, cd=0x55f1f4fdecb0, block_handler=<optimized out>, method_explorer=0x55f1f48c3880 <vm_search_method_wrap>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:337
  #51 0x000055f1f48d119e in vm_exec_core () at ../../src/trunk_gcc8/insns.def:799
  #52 0x000055f1f48ca46e in rb_vm_exec () at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1982
  #53 0x000055f1f48da531 in vm_yield_with_cref (is_lambda=0, cref=<optimized out>, kw_splat=0, argv=0x7fd6f291f188, argc=0, ec=0x55f1f4d304b0) at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1205
  #54 yield_under () at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1769
  #55 0x000055f1f48c1024 in vm_call_cfunc_with_frame () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2610
  #56 0x000055f1f48c3a09 in vm_sendish (ec=0x55f1f4d304b0, reg_cfp=0x7fd6f2a1ede0, cd=0x55f1f50cc0d0, block_handler=<optimized out>, method_explorer=0x55f1f48c3880 <vm_search_method_wrap>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:337
  #57 0x000055f1f48d2f68 in vm_exec_core () at ../../src/trunk_gcc8/insns.def:780
  #58 0x000055f1f48ca46e in rb_vm_exec () at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1982
  #59 0x000055f1f48db235 in vm_yield (kw_splat=0, argv=0x7fffdde06a00, argc=1, ec=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1205
  #60 rb_yield_0 (argc=1, argv=0x7fffdde06a00) at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1141
  #61 rb_yield_1 (val=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1147
  #62 rb_yield () at /tmp/ruby/v3/src/trunk_gcc8/vm_eval.c:1157
  #63 0x000055f1f48f459c in rb_ary_each (ary=94497687387280) at /tmp/ruby/v3/src/trunk_gcc8/include/ruby/internal/core/rarray.h:172
  #64 0x000055f1f48c1024 in vm_call_cfunc_with_frame () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2610
  #65 0x000055f1f48c12a7 in vm_call_cfunc (ec=ec@entry=0x55f1f4d304b0, reg_cfp=reg_cfp@entry=0x7fd6f2a1ee88, calling=calling@entry=0x7fffdde06c60, cd=cd@entry=0x55f1f50cc250) at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:2631
  #66 0x000055f1f48d7cfe in vm_call_method_each_type () at /tmp/ruby/v3/src/trunk_gcc8/vm_insnhelper.c:3109
  #67 0x000055f1f48d8594 in vm_call_method (ec=0x55f1f4d304b0, cfp=0x7fd6f2a1ee88, calling=<optimized out>, cd=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:351
  #68 0x000055f1f48c3a09 in vm_sendish (ec=0x55f1f4d304b0, reg_cfp=0x7fd6f2a1ee88, cd=0x55f1f50cc250, block_handler=<optimized out>, method_explorer=0x55f1f48c3880 <vm_search_method_wrap>) at /tmp/ruby/v3/src/trunk_gcc8/vm_callinfo.h:337
  #69 0x000055f1f48d2f68 in vm_exec_core () at ../../src/trunk_gcc8/insns.def:780
  #70 0x000055f1f48cac40 in rb_vm_exec () at /tmp/ruby/v3/src/trunk_gcc8/vm.c:1991
  #71 0x000055f1f471795a in rb_ec_exec_node (ec=ec@entry=0x55f1f4d304b0, n=n@entry=0x55f1f4f566a8) at /tmp/ruby/v3/src/trunk_gcc8/eval.c:297
  #72 0x000055f1f471be2b in ruby_run_node () at /tmp/ruby/v3/src/trunk_gcc8/eval.c:355
  #73 0x000055f1f470f86f in main (argc=<optimized out>, argv=<optimized out>) at /tmp/ruby/v3/src/trunk_gcc8/main.c:50
  >>> Dump Ruby level backtrace
  /home/ko1/ruby/build-ruby/gdbscript:12: Error in sourced command file:
  'rb_vmdebug_stack_dump_all_threads' has unknown return type; cast the call to its declared return type
  [nil, 24771]
  "gdb -p 24499 -x /home/ko1/ruby/build-ruby/gdbscript -batch -quiet"
  make: *** [yes-test-spec] Killed
  ptrace: No such process.
  >>> ThreadsNo threads.
  >>> Machine level backtrace
  >>> Dump Ruby level backtrace
  /home/ko1/ruby/build-ruby/gdbscript:12: Error in sourced command file:
  No symbol table is loaded.  Use the "file" command.
  [nil, 24499]
  #<Errno::ESRCH: No such process>
  "gdb -p 24497 -x /home/ko1/ruby/build-ruby/gdbscript -batch -quiet"
  Could not attach to process.  If your uid matches the uid of the target
  process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
  again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf
  warning: process 24497 is a zombie - the process has already terminated
  ptrace: Operation not permitted.
  >>> ThreadsNo threads.
  >>> Machine level backtrace
  >>> Dump Ruby level backtrace
  /home/ko1/ruby/build-ruby/gdbscript:12: Error in sourced command file:
  No symbol table is loaded.  Use the "file" command.
  [nil, 24497]
  "gdb -p 26288 -x /home/ko1/ruby/build-ruby/gdbscript -batch -quiet"
  ptrace: No such process.
  >>> ThreadsNo threads.
  >>> Machine level backtrace
  >>> Dump Ruby level backtrace
  /home/ko1/ruby/build-ruby/gdbscript:12: Error in sourced command file:
  No symbol table is loaded.  Use the "file" command.
  [nil, 26288]
  #<Errno::ESRCH: No such process>
    0.084000   0.044000 149.704000 (10802.964337)
  /home/ko1/ruby/build-ruby/build-ruby.rb:154:in `each_line': execution expired (Timeout::Error)
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:154:in `block (2 levels) in cmd'
  	from /usr/lib/ruby/2.5.0/timeout.rb:108:in `timeout'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:153:in `block in cmd'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:150:in `popen'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:150:in `cmd'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:299:in `block in test_rubyspec'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:220:in `block in builddir'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:219:in `chdir'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:219:in `builddir'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:298:in `test_rubyspec'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:355:in `block (4 levels) in run'
  	from /usr/lib/ruby/2.5.0/benchmark.rb:293:in `measure'
  	from /usr/lib/ruby/2.5.0/benchmark.rb:375:in `item'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:353:in `block (3 levels) in run'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:352:in `each'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:352:in `block (2 levels) in run'
  	from /usr/lib/ruby/2.5.0/benchmark.rb:173:in `benchmark'
  	from /usr/lib/ruby/2.5.0/benchmark.rb:205:in `bm'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:351:in `block in run'
  	from /usr/lib/ruby/2.5.0/benchmark.rb:293:in `measure'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:350:in `run'
  	from /home/ko1/ruby/build-ruby/build-ruby.rb:516:in `<main>'
  total: 11305.80 sec