Merge "Upgrade rust/crates/structopt-derive to 0.4.16" am: 6a8fd71e87 am: 5162c84530 am: 08b93b9202

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/structopt-derive/+/1833387

Change-Id: If839d9b7baadfc30f2e401a700909cd599e9f775