Migrate to cargo_embargo. am: 221d207ead am: 34f463cc17 am: 16de3e3d9d

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/parking_lot_core/+/2837829

Change-Id: I580a74777f264db05ff6eb42292a9b669abc3cac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>