Migrate to cargo_embargo. am: 0e6f36886f am: 2bd254bd3a am: d1a6bbc559

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/scopeguard/+/2828110

Change-Id: I8980d6b1938837c2a0a5e6ed2c3d5a95ace98859
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>