Migrate to cargo_embargo. am: daf8a2b219 am: 3ff463b920 am: 47cce5c298 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/async-trait/+/2799293 Change-Id: Icc79264f0197ed41edc54de2f5f20f881cd864c0 Signed-off-by: Automerger Merge Worker <[email protected]>