Migrate to cargo_embargo. am: 6118c39c43 am: 03e4a8af14 am: 0c857e2f23

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/fallible-iterator/+/2796217

Change-Id: Icad0372f014c933e92ee96e2f502eeab18060f8e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>