Upgrade rust/crates/structopt to 0.3.21
Test: make
Change-Id: I8b7f385accd0609f9b56cc77c55af99ca40c5241
diff --git a/Android.bp b/Android.bp
index 790b4ff..4e4d54b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -27,10 +27,10 @@
// proc-macro2-1.0.24 "default,proc-macro"
// quote-1.0.7 "default,proc-macro"
// strsim-0.8.0
-// structopt-derive-0.4.13
-// syn-1.0.48 "clone-impls,default,derive,full,parsing,printing,proc-macro,quote,visit"
+// structopt-derive-0.4.14
+// syn-1.0.53 "clone-impls,default,derive,full,parsing,printing,proc-macro,quote,visit"
// textwrap-0.11.0
-// unicode-segmentation-1.6.0
+// unicode-segmentation-1.7.1
// unicode-width-0.1.8 "default"
// unicode-xid-0.2.1 "default"
// vec_map-0.8.2