amd64-generic-asan failed to build images for a long time, see  issue 697967 . Now that it works again, we're seeing quite a few failures in the UnitTest step:

https://build.chromium.org/p/chromiumos/builders/amd64-generic-asan/builds/19584/steps/UnitTest/logs/stdio

These are the failing packages:

	chromeos-base/libchromeos-ui-0.0.1-r758
	chromeos-base/update_engine-0.0.3-r2422
	chromeos-base/power_manager-0.0.2-r1907
	chromeos-base/libweave-0.0.1-r249
	chromeos-base/peerd-0.0.1-r1972
	chromeos-base/imageloader-0.0.1-r504
	chromeos-base/chromeos-config-tools-0.0.1-r247
	chromeos-base/cryptohome-0.0.1-r1730
	chromeos-base/chromeos-login-0.0.2-r2838
	chromeos-base/apmanager-0.0.1-r1590
	chromeos-base/cros-disks-0.0.1-r1763
	chromeos-base/authpolicy-0.0.1-r339
	chromeos-base/permission_broker-0.0.1-r2041
	chromeos-base/firewalld-0.0.1-r1379
	chromeos-base/debugd-0.0.1-r1756
	chromeos-base/lorgnette-0.0.1-r1754
	chromeos-base/crash-reporter-0.0.1-r2015
	chromeos-base/metrics-0.0.1-r2057
	chromeos-base/mtpd-0.0.1-r126
	chromeos-base/chaps-0.0.1-r1944
	chromeos-base/vpn-manager-0.0.1-r1755
	chromeos-base/buffet-0.0.1-r1885
	chromeos-base/bootstat-0.0.2-r2088
	chromeos-base/chromeos-imageburner-0.0.1-r2105
	chromeos-base/shill-0.0.3-r562
	chromeos-base/webserver-0.0.1-r1204
	chromeos-base/mist-0.0.1-r1890

I haven't looked at all of the compiler out, but the biggest (maybe only?) issue is a missing symbol. For example:

permission_broker-0.0.1-r2041: cmd: {/var/cache/portage/chromeos-base/permission_broker/out/Default/permission_broker_unittest} '/var/cache/portage/chromeos-base/permission_broker/out/Default/permission_broker_unittest'
permission_broker-0.0.1-r2041: /var/cache/portage/chromeos-base/permission_broker/out/Default/permission_broker_unittest: symbol lookup error: /usr/lib64/libinstallattributes-395517.so: undefined symbol: __ubsan_handle_type_mismatch