Migrate to cargo_embargo. am: 57a5148ddd am: 5313c1f9b3 am: f2315e3cc5 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/indexmap/+/2832458 Change-Id: I8e69bd678163fb2738e2e7e24ec06953b4af9fed Signed-off-by: Automerger Merge Worker <[email protected]>