Migrate to cargo_embargo. am: 7a09400d62 am: 9bbdf0a8c6

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/rand_xorshift/+/2832652

Change-Id: I89c4798b8a6a8568e04e965a2627915ee46fcdf9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>