Migrate to cargo_embargo. am: a4c1350c71 am: a83b95d3cc am: adf31a2702 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/tracing-attributes/+/2836876 Change-Id: I2061fb5ec70213d560879f441062650ea3a18dd1 Signed-off-by: Automerger Merge Worker <[email protected]>