Migrate to cargo_embargo. am: cbb2c115f9 am: a625e8b1a9 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/tokio-stream/+/2828230 Change-Id: Ic34bc67a84d90a100bcfc0ff0263f6933feca3e8 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>