Installs racer, cargo-update and set +nightly

tforgione.sh

@@ -340,6 +340,22 @@ configure_rust() {
     fi
 
     curl https://sh.rustup.rs -sSf | sh -s -- --no-modify-path -y
+
+    cargo_update_installed=1
+    yes_no_ask "do you wish to install cargo-update? it allows to update package automatically"
+    if [ $? -eq 0 ]; then
+        cargo_update_installed=0
+        cargo install cargo-update
+    fi
+
+    yes_no_ask "do you wish to install racer? it enabled rust completion from vim"
+    if [ $? -eq 0 ]; then
+        rustup toolchain add nightly
+        cargo +nightly install racer
+        if [ $cargo_update_installed -eq 0 ]; then
+            cargo install-update-config -t nightly racer
+        fi
+    fi
 }
 
 main() {