Migrate to cargo_embargo. am: a4c1350c71 am: f872848ecb am: de1289640a

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/tracing-attributes/+/2836876

Change-Id: I1bda10812eb343af0445b834992e97f5f3058ca7
Signed-off-by: Automerger Merge Worker <[email protected]>