Result of trunk_clang_12@ruby-sp2-docker at 2023-03-22 01:06:24 +0900

OK (f62fa51283)[LOG]
test-all: 23735 tests, 8900768 assertions, 0 failures, 0 errors, 148 skips
test-spec: 3840 files, 31563 examples, 177847 expectations, 0 failures, 0 errors, 0 tagged

commands:

 "make update-unicode  -j4" exit with 0.
"make update-download -j4" exit with 0.
From https://github.com/ruby/rbs
 * branch              0dd11d38c11f55ead0a0d78bb9b19d2eaf3a2104 -> FETCH_HEAD
From https://github.com/ruby/debug
 * branch            65197361213529fb5f0b5f6ec111b4d2688a3887 -> FETCH_HEAD
HEAD is now at 0dd11d38 Merge pull request #1276 from ruby/print-skip-test
HEAD is now at 6519736 Increase timeout in debug_code
"make update-rubyspec -j4" exit with 0.
"make update-src      -j4" exit with 0.
From https://github.com/ruby/ruby
   9aaf2b7..f62fa51  master     -> origin/master
"make after-update    -j4" exit with 0.
From https://github.com/ruby/debug
 * branch            65197361213529fb5f0b5f6ec111b4d2688a3887 -> FETCH_HEAD
HEAD is now at 6519736 Increase timeout in debug_code
From https://github.com/ruby/rbs
 * branch              0dd11d38c11f55ead0a0d78bb9b19d2eaf3a2104 -> FETCH_HEAD
HEAD is now at 0dd11d38 Merge pull request #1276 from ruby/print-skip-test
"make miniruby -j4" exit with 0.
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:1369:17
     |
1367 | unsafe fn add_block_version(blockref: BlockRef, cb: &CodeBlock) {
     | --------------------------------------------------------------- because it's nested under this `unsafe` fn
1368 |     // SAFETY: caller ensures initialization
1369 |     let block = unsafe { blockref.as_ref() };
     |                 ^^^^^^ unnecessary `unsafe` block
     |
     = note: `#[warn(unused_unsafe)]` on by default
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
     = note: `#[allow(unsafe_op_in_unsafe_fn)]` on by default
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/cruby.rs:617:9
     |
617  |         unsafe { rb_yjit_obj_written(old, young, src_loc.file.as_ptr(), src_loc.line) };
     |         ^^^^^^ unnecessary `unsafe` block
     |
    ::: /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:1367:1
     |
1367 | unsafe fn add_block_version(blockref: BlockRef, cb: &CodeBlock) {
     | --------------------------------------------------------------- because it's nested under this `unsafe` fn
...
1383 |         obj_written!(iseq, dep.into());
     |         ------------------------------ in this macro invocation
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
     = note: this warning originates in the macro `obj_written` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:1392:22
     |
1367 | unsafe fn add_block_version(blockref: BlockRef, cb: &CodeBlock) {
     | --------------------------------------------------------------- because it's nested under this `unsafe` fn
...
1392 |         let object = unsafe { value_address.read_unaligned() };
     |                      ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/cruby.rs:617:9
     |
617  |         unsafe { rb_yjit_obj_written(old, young, src_loc.file.as_ptr(), src_loc.line) };
     |         ^^^^^^ unnecessary `unsafe` block
     |
    ::: /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:1367:1
     |
1367 | unsafe fn add_block_version(blockref: BlockRef, cb: &CodeBlock) {
     | --------------------------------------------------------------- because it's nested under this `unsafe` fn
...
1393 |         obj_written!(iseq, object);
     |         -------------------------- in this macro invocation
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
     = note: this warning originates in the macro `obj_written` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2689:17
     |
2688 | unsafe fn remove_from_graph(blockref: BlockRef) {
     | ----------------------------------------------- because it's nested under this `unsafe` fn
2689 |     let block = unsafe { blockref.as_ref() };
     |                 ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2694:27
     |
2688 | unsafe fn remove_from_graph(blockref: BlockRef) {
     | ----------------------------------------------- because it's nested under this `unsafe` fn
...
2694 |         let pred_branch = unsafe { pred_branchref.as_ref() };
     |                           ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2699:32
     |
2688 | unsafe fn remove_from_graph(blockref: BlockRef) {
     | ----------------------------------------------- because it's nested under this `unsafe` fn
...
2699 |             let target_is_us = unsafe {
     |                                ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2716:26
     |
2688 | unsafe fn remove_from_graph(blockref: BlockRef) {
     | ----------------------------------------------- because it's nested under this `unsafe` fn
...
2716 |         let out_branch = unsafe { out_branchref.as_ref() };
     |                          ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2720:48
     |
2688 | unsafe fn remove_from_graph(blockref: BlockRef) {
     | ----------------------------------------------- because it's nested under this `unsafe` fn
...
2720 |             let succ_block: Option<BlockRef> = unsafe {
     |                                                ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2727:34
     |
2688 | unsafe fn remove_from_graph(blockref: BlockRef) {
     | ----------------------------------------------- because it's nested under this `unsafe` fn
...
2727 |                 let succ_block = unsafe { succ_block.as_ref() };
     |                                  ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2753:5
     |
2750 | pub unsafe fn free_block(blockref: BlockRef, graph_intact: bool) {
     | ---------------------------------------------------------------- because it's nested under this `unsafe` fn
...
2753 |     unsafe {
     |     ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2762:5
     |
2750 | pub unsafe fn free_block(blockref: BlockRef, graph_intact: bool) {
     | ---------------------------------------------------------------- because it's nested under this `unsafe` fn
...
2762 |     unsafe { dealloc_block(blockref) }
     |     ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2768:5
     |
2767 | unsafe fn dealloc_block(blockref: BlockRef) {
     | ------------------------------------------- because it's nested under this `unsafe` fn
2768 |     unsafe {
     |     ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2776:5
     |
2767 | unsafe fn dealloc_block(blockref: BlockRef) {
     | ------------------------------------------- because it's nested under this `unsafe` fn
...
2776 |     unsafe {
     |     ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: unnecessary `unsafe` block
    --> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:3001:9
     |
2997 |     unsafe fn ref_unchecked(&self) -> &Self::Contained {
     |     -------------------------------------------------- because it's nested under this `unsafe` fn
...
3001 |         unsafe { self.as_ptr().as_ref().unwrap() }
     |         ^^^^^^ unnecessary `unsafe` block
     |
     = note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
warning: 15 warnings emitted
"make ruby -j4" exit with 0.
"make all -j4" exit with 0.
"make install -j4" exit with 0.
From https://github.com/ruby/rbs
 * branch              0dd11d38c11f55ead0a0d78bb9b19d2eaf3a2104 -> FETCH_HEAD
HEAD is now at 0dd11d38 Merge pull request #1276 from ruby/print-skip-test
From https://github.com/ruby/debug
 * branch            65197361213529fb5f0b5f6ec111b4d2688a3887 -> FETCH_HEAD
HEAD is now at 6519736 Increase timeout in debug_code
"make yes-btest TESTOPTS='-q -j4'" exit with 0.
 
"make yes-test-basic TESTS='-j4'" exit with 0.
"make yes-test-all TESTOPTS='--stderr-on-failure' TESTS='-j4'" exit with 0.
"make yes-test-rubyspec MSPECOPT='--error-output stderr' TESTS='-j4'" exit with 0.

Linux ruby-sp2-docker 5.15.0-67-generic #74-Ubuntu SMP Wed Feb 22 14:14:39 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

Logfile: /home/ko1/ruby/logs/brlog.trunk_clang_12.20230321-155637
#<BuildRuby:0x0000561cd64ce278
 @BUILD_DIR="/tmp/ruby/build",
 @INSTALL_DIR="/tmp/ruby/install",
 @REPOSITORY="https://github.com/ruby/ruby.git",
 @REPOSITORY_TYPE=:git,
 @SRC_DIR="/tmp/ruby/src",
 @TARGET_BUILD_DIR="/tmp/ruby/build/trunk_clang_12",
 @TARGET_INSTALL_DIR="/tmp/ruby/install/trunk_clang_12",
 @TARGET_NAME="trunk_clang_12",
 @TARGET_SRC_DIR="/tmp/ruby/src/trunk_clang_12",
 @btest_opts="-j4",
 @build_opts="-j4",
 @configure_opts=["CC=clang-12"],
 @gist=false,
 @git_branch=nil,
 @git_worktree=nil,
 @incremental=true,
 @logfile="/home/ko1/ruby/logs/brlog.trunk_clang_12.20230321-155637",
 @make="make",
 @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='-j4'",
 @timeout=10800>
                           user     system      total        real
checkout               0.000014   0.000004   0.000018 (  0.000018)
autoconf               0.000024   0.000005   0.000029 (  0.000029)
configure              0.000021   0.000005   0.000026 (  0.000026)
build_up               0.006045   0.001439   2.373491 (  4.809373)
build_miniruby         0.004692   0.000079  47.544951 ( 28.447377)
build_ruby             0.001383   0.000314   1.098482 (  1.438015)
build_all              0.004713   0.004501   2.351302 (  2.552967)
build_install          0.016186   0.000660   3.550658 (  3.551255)
test_btest             0.000529   0.000122  66.850285 ( 42.608491)
test_basic             0.002700   0.005304   0.534661 (  0.882037)
test_all               0.001077   0.000290 553.148772 (395.356175)
test_rubyspec          0.025810   0.036313  76.830861 (108.042081)
total: 587.69 sec

	"make update-unicode -j4" exit with 0.
	"make update-download -j4" exit with 0.
	From https://github.com/ruby/rbs
	* branch 0dd11d38c11f55ead0a0d78bb9b19d2eaf3a2104 -> FETCH_HEAD
	From https://github.com/ruby/debug
	* branch 65197361213529fb5f0b5f6ec111b4d2688a3887 -> FETCH_HEAD
	HEAD is now at 0dd11d38 Merge pull request #1276 from ruby/print-skip-test
	HEAD is now at 6519736 Increase timeout in debug_code
	"make update-rubyspec -j4" exit with 0.
	"make update-src -j4" exit with 0.
	From https://github.com/ruby/ruby
	9aaf2b7..f62fa51 master -> origin/master
	"make after-update -j4" exit with 0.
	From https://github.com/ruby/debug
	* branch 65197361213529fb5f0b5f6ec111b4d2688a3887 -> FETCH_HEAD
	HEAD is now at 6519736 Increase timeout in debug_code
	From https://github.com/ruby/rbs
	* branch 0dd11d38c11f55ead0a0d78bb9b19d2eaf3a2104 -> FETCH_HEAD
	HEAD is now at 0dd11d38 Merge pull request #1276 from ruby/print-skip-test
	"make miniruby -j4" exit with 0.
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:1369:17
	\|
	1367 \| unsafe fn add_block_version(blockref: BlockRef, cb: &CodeBlock) {
	\| --------------------------------------------------------------- because it's nested under this `unsafe` fn
	1368 \| // SAFETY: caller ensures initialization
	1369 \| let block = unsafe { blockref.as_ref() };
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: `#[warn(unused_unsafe)]` on by default
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	= note: `#[allow(unsafe_op_in_unsafe_fn)]` on by default
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/cruby.rs:617:9
	\|
	617 \| unsafe { rb_yjit_obj_written(old, young, src_loc.file.as_ptr(), src_loc.line) };
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	::: /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:1367:1
	\|
	1367 \| unsafe fn add_block_version(blockref: BlockRef, cb: &CodeBlock) {
	\| --------------------------------------------------------------- because it's nested under this `unsafe` fn
	...
	1383 \| obj_written!(iseq, dep.into());
	\| ------------------------------ in this macro invocation
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	= note: this warning originates in the macro `obj_written` (in Nightly builds, run with -Z macro-backtrace for more info)
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:1392:22
	\|
	1367 \| unsafe fn add_block_version(blockref: BlockRef, cb: &CodeBlock) {
	\| --------------------------------------------------------------- because it's nested under this `unsafe` fn
	...
	1392 \| let object = unsafe { value_address.read_unaligned() };
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/cruby.rs:617:9
	\|
	617 \| unsafe { rb_yjit_obj_written(old, young, src_loc.file.as_ptr(), src_loc.line) };
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	::: /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:1367:1
	\|
	1367 \| unsafe fn add_block_version(blockref: BlockRef, cb: &CodeBlock) {
	\| --------------------------------------------------------------- because it's nested under this `unsafe` fn
	...
	1393 \| obj_written!(iseq, object);
	\| -------------------------- in this macro invocation
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	= note: this warning originates in the macro `obj_written` (in Nightly builds, run with -Z macro-backtrace for more info)
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2689:17
	\|
	2688 \| unsafe fn remove_from_graph(blockref: BlockRef) {
	\| ----------------------------------------------- because it's nested under this `unsafe` fn
	2689 \| let block = unsafe { blockref.as_ref() };
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2694:27
	\|
	2688 \| unsafe fn remove_from_graph(blockref: BlockRef) {
	\| ----------------------------------------------- because it's nested under this `unsafe` fn
	...
	2694 \| let pred_branch = unsafe { pred_branchref.as_ref() };
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2699:32
	\|
	2688 \| unsafe fn remove_from_graph(blockref: BlockRef) {
	\| ----------------------------------------------- because it's nested under this `unsafe` fn
	...
	2699 \| let target_is_us = unsafe {
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2716:26
	\|
	2688 \| unsafe fn remove_from_graph(blockref: BlockRef) {
	\| ----------------------------------------------- because it's nested under this `unsafe` fn
	...
	2716 \| let out_branch = unsafe { out_branchref.as_ref() };
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2720:48
	\|
	2688 \| unsafe fn remove_from_graph(blockref: BlockRef) {
	\| ----------------------------------------------- because it's nested under this `unsafe` fn
	...
	2720 \| let succ_block: Option<BlockRef> = unsafe {
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2727:34
	\|
	2688 \| unsafe fn remove_from_graph(blockref: BlockRef) {
	\| ----------------------------------------------- because it's nested under this `unsafe` fn
	...
	2727 \| let succ_block = unsafe { succ_block.as_ref() };
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2753:5
	\|
	2750 \| pub unsafe fn free_block(blockref: BlockRef, graph_intact: bool) {
	\| ---------------------------------------------------------------- because it's nested under this `unsafe` fn
	...
	2753 \| unsafe {
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2762:5
	\|
	2750 \| pub unsafe fn free_block(blockref: BlockRef, graph_intact: bool) {
	\| ---------------------------------------------------------------- because it's nested under this `unsafe` fn
	...
	2762 \| unsafe { dealloc_block(blockref) }
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2768:5
	\|
	2767 \| unsafe fn dealloc_block(blockref: BlockRef) {
	\| ------------------------------------------- because it's nested under this `unsafe` fn
	2768 \| unsafe {
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:2776:5
	\|
	2767 \| unsafe fn dealloc_block(blockref: BlockRef) {
	\| ------------------------------------------- because it's nested under this `unsafe` fn
	...
	2776 \| unsafe {
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: unnecessary `unsafe` block
	--> /tmp/ruby/src/trunk_clang_12/yjit/src/core.rs:3001:9
	\|
	2997 \| unsafe fn ref_unchecked(&self) -> &Self::Contained {
	\| -------------------------------------------------- because it's nested under this `unsafe` fn
	...
	3001 \| unsafe { self.as_ptr().as_ref().unwrap() }
	\| ^^^^^^ unnecessary `unsafe` block
	\|
	= note: this `unsafe` block does contain unsafe operations, but those are already allowed in an `unsafe fn`
	warning: 15 warnings emitted
	"make ruby -j4" exit with 0.
	"make all -j4" exit with 0.
	"make install -j4" exit with 0.
	From https://github.com/ruby/rbs
	* branch 0dd11d38c11f55ead0a0d78bb9b19d2eaf3a2104 -> FETCH_HEAD
	HEAD is now at 0dd11d38 Merge pull request #1276 from ruby/print-skip-test
	From https://github.com/ruby/debug
	* branch 65197361213529fb5f0b5f6ec111b4d2688a3887 -> FETCH_HEAD
	HEAD is now at 6519736 Increase timeout in debug_code
	"make yes-btest TESTOPTS='-q -j4'" exit with 0.

	"make yes-test-basic TESTS='-j4'" exit with 0.
	"make yes-test-all TESTOPTS='--stderr-on-failure' TESTS='-j4'" exit with 0.
	"make yes-test-rubyspec MSPECOPT='--error-output stderr' TESTS='-j4'" exit with 0.