Migrate to cargo_embargo. am: 3cb9189771 am: 0729a84270 am: c1f2a58b38

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/googletest/+/2824500

Change-Id: Ide7a62309aa3d770c5ae97bf12dcabcb0bf82196
Signed-off-by: Automerger Merge Worker <[email protected]>