remote_device_dummy.apk is included in many critical android targets. As it is in the out/*/apks/ folder (and not out/*/${APKNAME}_apk/), remove_build_metadata won't remove any nondeterminism in it. This means that most android targets are currently nondeterministic, and can't be deduped.
Comment 1 by bugdroid1@chromium.org
, Jul 6 2016