Merge "Upgrade rust/crates/futures-util to 0.3.12" am: 102eb371e7 am: ace3f190a6

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/futures-util/+/1581956

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia8484033caf568f8922b62d966c43e6cd3af9dd5