rusty-keys-git: cargo fetch in prepare()

src/rusty-keys-git/PKGBUILD

@@ -1,7 +1,7 @@
 # Maintainer: moparisthebest <admin dot archlinux AT moparisthebest dot com>
 
 pkgname=rusty-keys-git
-pkgver=0.0.2.r17.gf15edf8
+pkgver=0.0.2.r18.g0ffc169
 pkgrel=1
 pkgdesc="uinput level keyboard mapper for linux"
 url="https://code.moparisthebest.com/moparisthebest/rusty-keys"
@@ -21,6 +21,11 @@ pkgver() {
 	git describe --long --tags | sed 's/^v//;s/\([^-]*-g\)/r\1/;s/-/./g'
 }
 
+prepare() {
+  cd "$pkgname"
+  cargo fetch
+}
+
 build() {
   cd "$pkgname"
   cargo build --release