Migrate to cargo_embargo. am: efe366f7f8 am: e7b40e98b0 am: f8a929a7a3

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/document-features/+/2832654

Change-Id: I3f06a94c0e1da6bcb3a6177d8d76176135e40642
Signed-off-by: Automerger Merge Worker <[email protected]>