There are a few release builders that are failing with the following error:

- sys-kernel/chromeos-kernel-4_4-4.4.140-r1602::chromiumos USE="acpi_ac clang factory_shim_ramfs fbconsole fit_compression_kernel_lz4 i2cdev mbim pcserial transparent_hugepage vfat vlan vtconsole -allocator_slab -apply_patches -asan -binder -blkdevram -boot_dts_device_tree -buildtest -builtin_fw_amdgpu -builtin_fw_t124_xusb -builtin_fw_t210_bpmp -builtin_fw_t210_nouveau -builtin_fw_t210_xusb -ca0132 -cec -cifs -criu -cros_ec_mec -cros_ec_sysfs_usb -cros_host -devdebug -device_tree -diskswap -dm_snapshot -dp_cec -dwc2_dual_role -dyndebug -eve_bt_hacks -eve_wifi_etsi -factory_netboot_ramfs -firmware_install -fit_compression_kernel_lzma -gdmwimax -gobi -goldfish -highmem -iscsi -kasan -kcov -kgdb -kmemleak -kvm -kvm_host -lockdebug -lxc -nfc -nfs -nowerror -plan9 -ppp -profiling -pvrdebug -qmi -realtekpstor -recovery_ramfs -samsung_serial -selinux_develop -socketmon -systemtap -test -tpm -tpm2 -unibuild -usb_gadget -usb_gadget_acm -usb_gadget_audio -usb_gadget_ncm -virtio_balloon -wifi_diag -wifi_testbed_ap -wireless318 -wireless34 -wireless38 -wireless42 -x32" ABI_X86="64" BOARD_USE="betty-arcnext -acorn -amd64-corei7 -amd64-generic -amd64-generic-cheets -amd64-generic-goofy -amd64-generic_embedded -amd64-generic_mobbuild -amd64-host -aplrvp -aries -arkham -arm-generic -arm64-generic -arm64-llvmpipe -asuka -atlas -auron -auron_paine -auron_pearlvalley -auron_yuna -banjo -banon -bayleybay -beaglebone -beaglebone_servo -beaglebone_vv1 -beltino -betty -betty-arc64 -blackwall -bob -bobcat -bolt -bruteus -buddy -butterfly -bwtm2 -candy -capri -capri-zfpga -cardhu -caroline -caroline-arc64 -caroline-arcnext -caroline-ndktranslation -caroline-userdebug -cave -celes -celes-cheets -chell -chell-cheets -cheza -cid -clapper -cnlrvp -cobblepot -coral -cosmos -cranky -cyan -cyan-cheets -cyclone -daisy -daisy_embedded -daisy_skate -daisy_snow -daisy_spring -daisy_winter -dalmore -danger -danger_embedded -dragonegg -duck -edgar -elm -elm-cheets -enguarde -eve -eve-arcnext -eve-campfire -eve-kvm -eve-swap -eve-userdebug -expresso -falco -falco_gles -falco_li -fb1 -fizz -fizz-accelerator -fizz-moblab -foster -gale -gandof -glados -glados-cheets -glimmer -glimmer-cheets -glkrvp -gnawty -gonzo -gru -grunt -guado -guado-accelerator -guado-macrophage -guado_labstation -guado_moblab -hana -heli -hsb -iclrvp -ironhide -jadeite -jecht -kayle -kblrvp -kefka -kevin -kevin-arcnext -kevin-tpm2 -kidd -kip -klang -kukui -kunimitsu -lakitu -lakitu-gpu -lakitu-nc -lakitu-st -lakitu_mobbuild -lakitu_next -lars -laser -lasilla-ground -lasilla-sky -lassen -leon -link -loonix -lulu -lulu-cheets -lumpy -macchiato-ground -mappy -mappy_flashstation -marble -mccloud -meowth -metis -minnowboard -mipseb-n32-generic -mipseb-n64-generic -mipseb-o32-generic -mipsel-n32-generic -mipsel-n64-generic -mipsel-o32-generic -moblab-generic-vm -monroe -moose -nami -nautilus -nefario -newbie -ninja -nocturne -novato -novato-arc64 -nyan -nyan_big -nyan_blaze -nyan_kitty -oak -oak-cheets -octavius -octopus -orco -panda -panther -panther_embedded -panther_goofy -panther_moblab -parrot -parrot32 -parrot64 -parrot_ivb -pbody -peach -peach_kirby -peach_pi -peach_pit -peppy -plaso -poppy -ppcbe-32-generic -ppcbe-64-generic -ppcle-32-generic -ppcle-64-generic -puppy -purin -pyro -quawks -rainier -rambi -rammus -raspberrypi -reef -reks -relm -reptile -rikku -rizer -romer -rotor -rowan -rush -rush_ryu -sama5d3 -samus -samus-cheets -sand -scarlet -scarlet-arcnext -sentry -setzer -shogun -sklrvp -slippy -smaug -smaug-cheets -smaug-kasan -snappy -sonic -soraka -squawks -stelvio -storm -storm_nand -stout -strago -stumpy -stumpy_moblab -stumpy_pico -sumo -swanky -tael -tails -tatl -tegra3-generic -terra -tidus -tricky -ultima -umaro -veyron -veyron_fievel -veyron_gus -veyron_jaq -veyron_jerry -veyron_mickey -veyron_mighty -veyron_minnie -veyron_minnie-cheets -veyron_nicky -veyron_pinky -veyron_remy -veyron_rialto -veyron_shark -veyron_speedy -veyron_speedy-cheets -veyron_thea -veyron_tiger -whirlwind -winky -wizpig -wolf -wooten -wsb -x30evb -x32-generic -x86-agz -x86-alex -x86-alex32 -x86-alex32_he -x86-alex_he -x86-alex_hubble -x86-dogfood -x86-generic -x86-generic_embedded -x86-mario -x86-mario64 -x86-zgb -x86-zgb32 -x86-zgb32_he -x86-zgb_he -zako -zoombini"
  The following REQUIRED_USE flag constraints are unsatisfied:
    factory_shim_ramfs? ( any-of ( tpm tpm2 ) )
  The above constraints are a subset of the following complete expression:
    fit_compression_kernel_lz4? ( !fit_compression_kernel_lzma ) fit_compression_kernel_lzma? ( !fit_compression_kernel_lz4 ) kgdb? ( vtconsole ) factory_netboot_ramfs? ( !recovery_ramfs !factory_shim_ramfs ) factory_shim_ramfs? ( !recovery_ramfs !factory_netboot_ramfs ) recovery_ramfs? ( !factory_netboot_ramfs !factory_shim_ramfs ) factory_netboot_ramfs? ( i2cdev ) factory_shim_ramfs? ( i2cdev ) recovery_ramfs? ( i2cdev ) factory_netboot_ramfs? ( any-of ( tpm tpm2 ) ) factory_shim_ramfs? ( any-of ( tpm tpm2 ) ) recovery_ramfs? ( any-of ( tpm tpm2 ) )
ERROR   : Mon Jul 16 06:25:25 PDT 2018
ERROR   :  PGID  PPID   PID     ELAPSED     TIME %CPU COMMAND
ERROR   : Arguments of 10: ./build_image '--board=betty-arcnext' '--replace' '--symlink=factory_shim' '--build_attempt=3' 'factory_install'
ERROR   : Backtrace:  (most recent call is last)
ERROR   :  build_image:195:main(), called: create_base_image 'factory_install_shim.bin' '1' '1' 
ERROR   :  base_image_util.sh:216:create_base_image(), called: emerge_custom_kernel '/mnt/host/source/src/build/images/betty-arcnext/R69-10882.0.0-a3/rootfs' 
ERROR   :  common.sh:1240:emerge_custom_kernel(), called: die 'Cannot emerge kernel dependencies' 
ERROR   : 
ERROR   : Error was:
ERROR   :   Cannot emerge kernel dependencies



Affected builds:
betty-release
amd64-generic-goofy-release
betty-arc64-release
newbie-release
... and more

https://cros-goldeneye.corp.google.com/chromeos/healthmonitoring/buildDetails?buildbucketId=8940852943134132912