Migrate to cargo_embargo. am: d59043ee91 am: 4de7fa8243 am: 782e7a8713

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/rayon/+/2824415

Change-Id: I4bd6c96137f44838b7c0d0ee785e08cde7f7f90e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>