Upgrade rust/crates/structopt-derive to 0.4.16

Test: make
Change-Id: I184dfb62405c060efdb5fc67f3ab22d7285f64a1
diff --git a/Android.bp b/Android.bp
index eec57d9..cd2b353 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,4 +1,4 @@
-// This file is generated by cargo2android.py --run --tests --dependencies.
+// This file is generated by cargo2android.py --run --tests.
 // Do not modify this file as changes will be overridden on upgrade.
 
 package {
@@ -42,6 +42,8 @@
 rust_proc_macro {
     name: "libstructopt_derive",
     crate_name: "structopt_derive",
+    cargo_env_compat: true,
+    cargo_pkg_version: "0.4.16",
     srcs: ["src/lib.rs"],
     edition: "2018",
     rustlibs: [
@@ -56,6 +58,8 @@
 rust_test_host {
     name: "structopt-derive_host_test_src_lib",
     crate_name: "structopt_derive",
+    cargo_env_compat: true,
+    cargo_pkg_version: "0.4.16",
     srcs: ["src/lib.rs"],
     test_suites: ["general-tests"],
     auto_gen_config: true,
@@ -71,14 +75,3 @@
         "libsyn",
     ],
 }
-
-// dependent_library ["feature_list"]
-//   heck-0.3.3
-//   proc-macro-error-1.0.4 "default,syn,syn-error"
-//   proc-macro-error-attr-1.0.4
-//   proc-macro2-1.0.28 "default,proc-macro"
-//   quote-1.0.9 "default,proc-macro"
-//   syn-1.0.74 "clone-impls,default,derive,full,parsing,printing,proc-macro,quote"
-//   unicode-segmentation-1.8.0
-//   unicode-xid-0.2.2 "default"
-//   version_check-0.9.3