Migrate to cargo_embargo. am: 6118c39c43 am: f0e371ac6f am: 1a2ad141cb

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/fallible-iterator/+/2796217

Change-Id: I981aa72ae55ad03b92348994a29728736334f10b
Signed-off-by: Automerger Merge Worker <[email protected]>