Fix some warnings

README.md

@@ -10,7 +10,7 @@ A free & open source 2D Lemmings-meets-tower defense destructible terrain game.
 
 # Run
 
-## From Github
+## From GitHub
 
 You can download the [latest](https://github.com/tversteeg/castle-game/releases/latest) version from [releases](https://github.com/tversteeg/castle-game/releases). It should work by just running the executable, if not, [create an issue](https://github.com/tversteeg/castle-game/issues/new).
 

build.rs

@@ -71,14 +71,14 @@ fn parse_folder(assets_dir: &str, folder: &str, mask_color: u32) {
 
         match extension.to_str().unwrap() {
             "png" => save_blit_buffer_from_image(
-                &assets_dir,
+                assets_dir,
                 folder,
                 filename.to_str().unwrap(),
                 filestem.to_str().unwrap(),
                 mask_color,
             ),
             "json" => save_anim_buffer(
-                &assets_dir,
+                assets_dir,
                 folder,
                 filename.to_str().unwrap(),
                 filestem.to_str().unwrap(),

src/audio.rs

@@ -135,7 +135,7 @@ impl Audio {
                 let stream_data = match stream_result {
                     Ok(data) => data,
                     Err(err) => {
-                        eprintln!("an error occurred on stream {:?}: {}", stream_id, err);
+                        eprintln!("an error occurred on stream {:?}: {:?}", stream_id, err);
                         return;
                     }
                 };

src/turret.rs

@@ -1,5 +1,4 @@
 use cgmath::MetricSpace;
-use rand;
 use rand::distributions::{Distribution, Uniform};
 use specs::prelude::*;
 use specs_derive::Component;