https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_rialto-release/builds/60/steps/Archive/logs/stdio

/build/veyron_rialto/usr/bin/cgpt -> /build/veyron_rialto/tmp/portage/chromeos-base/chromeos-initramfs-0.0.1-r218/work/stage_recovery/bin/cgpt
cp init "/build/veyron_rialto/tmp/portage/chromeos-base/chromeos-initramfs-0.0.1-r218/work/stage_recovery/init"
cp ../common/init.sh "/build/veyron_rialto/tmp/portage/chromeos-base/chromeos-initramfs-0.0.1-r218/work/stage_recovery/lib/"
cp /build/veyron_rialto/usr/share/chromeos-assets/images/boot_message*.png \
	assets/*.png /build/veyron_rialto/tmp/portage/chromeos-base/chromeos-initramfs-0.0.1-r218/work/stage_recovery/etc/screens
cp: cannot stat '/build/veyron_rialto/usr/share/chromeos-assets/images/boot_message*.png': No such file or directory
Makefile:49: recipe for target '/build/veyron_rialto/tmp/portage/chromeos-base/chromeos-initramfs-0.0.1-r218/work/recovery_ramfs.cpio.xz' failed
make[1]: *** [/build/veyron_rialto/tmp/portage/chromeos-base/chromeos-initramfs-0.0.1-r218/work/recovery_ramfs.cpio.xz] Error 1
make[1]: Leaving directory '/mnt/host/source/src/platform/initramfs/recovery'
Makefile:12: recipe for target 'recovery' failed
make: *** [recovery] Error 2
 * ERROR: chromeos-base/chromeos-initramfs-0.0.1-r218::chromiumos failed (compile phase):
 *   emake failed


Started in build 8375.0.0
https://crosland.corp.google.com/log/8373.0.0..8375.0.0
which contained change to remove virtual/assets:
https://chrome-internal-review.googlesource.com/#/c/260738/
almost certainly the cause