Migrate to cargo_embargo. am: e0fa966410 am: 9537b47e45 am: c0f8982fff

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/combine/+/2826452

Change-Id: Ia8293a26f1ecb39932e75503f4f39e1ba928de51
Signed-off-by: Automerger Merge Worker <[email protected]>