latest CQ failed in chromeos-init & arc-adbd:
https://luci-milo.appspot.com/buildbot/chromeos/zoombini-paladin/3587
https://luci-milo.appspot.com/buildbot/chromeos/veyron_jerry-paladin/4002

=== Start output for job chromeos-init-0.0.25-r3637 (0m4.1s) ===
>>> Emerging (1 of 1) chromeos-base/chromeos-init-0.0.25-r3637::chromiumos for /build/veyron_jerry/
 * Running stacked hooks for pre_pkg_setup
 *    sysroot_build_bin_dir ...
 [ ok ]
 * Running stacked hooks for post_pkg_setup
 *    python_eclass_hack ...
 [ ok ]
 * Running stacked hooks for pre_src_unpack
 *    python_multilib_setup ...
 [ ok ]
>>> Unpacking source...
 * /mnt/host/source/src/platform2 is not at rev 99cefae5bfc92ddfc8bb1c1e9c40326acbeea2e1
Cloning into '/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25'...
done.
>>> Source unpacked in /build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work
 * Running stacked hooks for post_src_unpack
 *    asan_init ...
 [ ok ]
>>> Preparing source in /build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25/init ...
>>> Source prepared.
>>> Configuring source in /build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25/init ...
/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25/common-mk/platform2.py --libdir=/usr/lib --use_flags=arm cros-debug debugd elibc_glibc encrypted_stateful frecon kernel-3_14 kernel_linux midi syslog udev userland_GNU --jobs=32 --action=configure --cache_dir=/build/veyron_jerry/var/cache/portage/chromeos-base/chromeos-init /build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25/init/init.gyp --platform_subdir=init --iuse_flags=
	cros_embedded +debugd +encrypted_stateful frecon
	kernel-3_8 kernel-3_10 kernel-3_14 kernel-3_18 +midi
	-s3halt +syslog systemd +udev vtconsole cros_host cros_workon_tree_34bcb6266df551e7744073b28ff1b6aa18023fe2_49e9206542ffee3efef61a7fce1ba91c317011bb_dc1506ef7c8cfd2c5ffd1809dac05596ec18773c profiling cros-debug fuzzer cros_host cros_workon_tree_34bcb6266df551e7744073b28ff1b6aa18023fe2_49e9206542ffee3efef61a7fce1ba91c317011bb_dc1506ef7c8cfd2c5ffd1809dac05596ec18773c profiling cros-debug asan cros_host fuzzer test
18:18:57: NOTICE: use flag arm not in iuse
18:18:57: NOTICE: use flag elibc_glibc not in iuse
18:18:57: NOTICE: use flag kernel_linux not in iuse
18:18:57: NOTICE: use flag userland_GNU not in iuse
18:18:57: INFO: RunCommand: gn gen '--root=/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25' '--args=platform_subdir="init" external_cflags=["-O2","-O2","-pipe","-mcpu=cortex-a12","-mtune=cortex-a12","-mfpu=neon","-mfloat-abi=hard","-g","-fno-exceptions","-fno-unwind-tables","-fno-asynchronous-unwind-tables"] external_cppflags=["-D_FILE_OFFSET_BITS=64","-D_LARGEFILE_SOURCE","-D_LARGEFILE64_SOURCE"] enable_exceptions=false build_root="/build/veyron_jerry/var/cache/portage/chromeos-base/chromeos-init" external_ldflags=["-Wl,-O1","-Wl,-O2","-Wl,--as-needed"] platform2_root="/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25" external_cxxflags=["-O2","-O2","-O2","-pipe","-mcpu=cortex-a12","-mtune=cortex-a12","-mfpu=neon","-mfloat-abi=hard","-g","-fno-exceptions","-fno-unwind-tables","-fno-asynchronous-unwind-tables"] OS="linux" libdir="/usr/lib" libbase_ver="395517" sysroot="/build/veyron_jerry" pkg_config="/build/veyron_jerry/build/bin/pkg-config" cc="armv7a-cros-linux-gnueabi-clang" cxx="armv7a-cros-linux-gnueabi-clang++" ar="armv7a-cros-linux-gnueabi-ar" use={frecon=true udev=true vtconsole=false syslog=true cros_host=false kernel_3_8=false arm=true kernel_3_18=false kernel_3_10=false kernel_3_14=true fuzzer=false cros_embedded=false test=false userland_GNU=true cros_workon_tree_34bcb6266df551e7744073b28ff1b6aa18023fe2_49e9206542ffee3efef61a7fce1ba91c317011bb_dc1506ef7c8cfd2c5ffd1809dac05596ec18773c=false profiling=false systemd=false cros_debug=true kernel_linux=true debugd=true asan=false midi=true encrypted_stateful=true elibc_glibc=true s3halt=false}' /build/veyron_jerry/var/cache/portage/chromeos-base/chromeos-init/out/Default in /build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25
ERROR at the command-line "--args":1:910: Build argument has no effect.
platform_subdir="init" external_cflags=["-O2","-O2","-pipe","-mcpu=cortex-a12","-mtune=cortex-a12","-mfpu=neon","-mfloat-abi=hard","-g","-fno-exceptions","-fno-unwind-tables","-fno-asynchronous-unwind-tables"] external_cppflags=["-D_FILE_OFFSET_BITS=64","-D_LARGEFILE_SOURCE","-D_LARGEFILE64_SOURCE"] enable_exceptions=false build_root="/build/veyron_jerry/var/cache/portage/chromeos-base/chromeos-init" external_ldflags=["-Wl,-O1","-Wl,-O2","-Wl,--as-needed"] platform2_root="/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25" external_cxxflags=["-O2","-O2","-O2","-pipe","-mcpu=cortex-a12","-mtune=cortex-a12","-mfpu=neon","-mfloat-abi=hard","-g","-fno-exceptions","-fno-unwind-tables","-fno-asynchronous-unwind-tables"] OS="linux" libdir="/usr/lib" libbase_ver="395517" sysroot="/build/veyron_jerry" pkg_config="/build/veyron_jerry/build/bin/pkg-config" cc="armv7a-cros-linux-gnueabi-clang" cxx="armv7a-cros-linux-gnueabi-clang++" ar="armv7a-cros-linux-gnueabi-ar" use={frecon=true udev=true vtconsole=false syslog=true cros_host=false kernel_3_8=false arm=true kernel_3_18=false kernel_3_10=false kernel_3_14=true fuzzer=false cros_embedded=false test=false userland_GNU=true cros_workon_tree_34bcb6266df551e7744073b28ff1b6aa18023fe2_49e9206542ffee3efef61a7fce1ba91c317011bb_dc1506ef7c8cfd2c5ffd1809dac05596ec18773c=false profiling=false systemd=false cros_debug=true kernel_linux=true debugd=true asan=false midi=true encrypted_stateful=true elibc_glibc=true s3halt=false}
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ^--------------------------------
Did you mean "OS"?

The variable "cc" was set as a build argument
but never appeared in a declare_args() block in any buildfile.

To view all possible args, run "gn args --list <builddir>"
ERROR No targets.
I could not find any targets to write, so I'm doing nothing.
ERROR 
platform2.py: Unhandled exception:
Traceback (most recent call last):
  File "/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25/common-mk/platform2.py", line 432, in <module>
    commandline.ScriptWrapperMain(lambda _: main)
  File "/usr/lib64/python2.7/site-packages/chromite/lib/commandline.py", line 911, in ScriptWrapperMain
    ret = target(argv[1:])
  File "/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25/common-mk/platform2.py", line 428, in main
    getattr(p2, options.action)(options.args)
  File "/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25/common-mk/platform2.py", line 219, in configure
    self.configure_gn()
  File "/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25/common-mk/platform2.py", line 341, in configure_gn
    cwd=self.get_platform2_root())
  File "/usr/lib64/python2.7/site-packages/chromite/lib/cros_build_lib.py", line 646, in RunCommand
    raise RunCommandError(msg, cmd_result)
chromite.lib.cros_build_lib.RunCommandError: return code: 1; command: gn gen '--root=/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25' '--args=platform_subdir="init" external_cflags=["-O2","-O2","-pipe","-mcpu=cortex-a12","-mtune=cortex-a12","-mfpu=neon","-mfloat-abi=hard","-g","-fno-exceptions","-fno-unwind-tables","-fno-asynchronous-unwind-tables"] external_cppflags=["-D_FILE_OFFSET_BITS=64","-D_LARGEFILE_SOURCE","-D_LARGEFILE64_SOURCE"] enable_exceptions=false build_root="/build/veyron_jerry/var/cache/portage/chromeos-base/chromeos-init" external_ldflags=["-Wl,-O1","-Wl,-O2","-Wl,--as-needed"] platform2_root="/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25" external_cxxflags=["-O2","-O2","-O2","-pipe","-mcpu=cortex-a12","-mtune=cortex-a12","-mfpu=neon","-mfloat-abi=hard","-g","-fno-exceptions","-fno-unwind-tables","-fno-asynchronous-unwind-tables"] OS="linux" libdir="/usr/lib" libbase_ver="395517" sysroot="/build/veyron_jerry" pkg_config="/build/veyron_jerry/build/bin/pkg-config" cc="armv7a-cros-linux-gnueabi-clang" cxx="armv7a-cros-linux-gnueabi-clang++" ar="armv7a-cros-linux-gnueabi-ar" use={frecon=true udev=true vtconsole=false syslog=true cros_host=false kernel_3_8=false arm=true kernel_3_18=false kernel_3_10=false kernel_3_14=true fuzzer=false cros_embedded=false test=false userland_GNU=true cros_workon_tree_34bcb6266df551e7744073b28ff1b6aa18023fe2_49e9206542ffee3efef61a7fce1ba91c317011bb_dc1506ef7c8cfd2c5ffd1809dac05596ec18773c=false profiling=false systemd=false cros_debug=true kernel_linux=true debugd=true asan=false midi=true encrypted_stateful=true elibc_glibc=true s3halt=false}' /build/veyron_jerry/var/cache/portage/chromeos-base/chromeos-init/out/Default
cmd=['gn', 'gen', '--root=/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25', '--args=platform_subdir="init" external_cflags=["-O2","-O2","-pipe","-mcpu=cortex-a12","-mtune=cortex-a12","-mfpu=neon","-mfloat-abi=hard","-g","-fno-exceptions","-fno-unwind-tables","-fno-asynchronous-unwind-tables"] external_cppflags=["-D_FILE_OFFSET_BITS=64","-D_LARGEFILE_SOURCE","-D_LARGEFILE64_SOURCE"] enable_exceptions=false build_root="/build/veyron_jerry/var/cache/portage/chromeos-base/chromeos-init" external_ldflags=["-Wl,-O1","-Wl,-O2","-Wl,--as-needed"] platform2_root="/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25" external_cxxflags=["-O2","-O2","-O2","-pipe","-mcpu=cortex-a12","-mtune=cortex-a12","-mfpu=neon","-mfloat-abi=hard","-g","-fno-exceptions","-fno-unwind-tables","-fno-asynchronous-unwind-tables"] OS="linux" libdir="/usr/lib" libbase_ver="395517" sysroot="/build/veyron_jerry" pkg_config="/build/veyron_jerry/build/bin/pkg-config" cc="armv7a-cros-linux-gnueabi-clang" cxx="armv7a-cros-linux-gnueabi-clang++" ar="armv7a-cros-linux-gnueabi-ar" use={frecon=true udev=true vtconsole=false syslog=true cros_host=false kernel_3_8=false arm=true kernel_3_18=false kernel_3_10=false kernel_3_14=true fuzzer=false cros_embedded=false test=false userland_GNU=true cros_workon_tree_34bcb6266df551e7744073b28ff1b6aa18023fe2_49e9206542ffee3efef61a7fce1ba91c317011bb_dc1506ef7c8cfd2c5ffd1809dac05596ec18773c=false profiling=false systemd=false cros_debug=true kernel_linux=true debugd=true asan=false midi=true encrypted_stateful=true elibc_glibc=true s3halt=false}', '/build/veyron_jerry/var/cache/portage/chromeos-base/chromeos-init/out/Default'], cwd=/build/veyron_jerry/tmp/portage/chromeos-base/chromeos-init-0.0.25-r3637/work/chromeos-init-0.0.25
 * ERROR: chromeos-base/chromeos-init-0.0.25-r3637::chromiumos failed (configure phase):