feat: add CI for arm, musl, raspberry pi

Author: asimpson

.travis.yml

@@ -4,15 +4,20 @@ jobs:
   include:
     - env: TARGET=x86_64-unknown-linux-gnu
       os: linux
+    - env: TARGET=x86_64-unknown-linux-musl
+      os: linux
+    - env: TARGET=arm-unknown-linux-gnueabihf
+      os: linux
+    - env: TARGET=aarch64-unknown-linux-gnu
+      os: linux
+      arch: arm64
     - env: TARGET=x86_64-apple-darwin
       os: osx
     - env: TARGET=x86_64-pc-windows-gnu
       os: windows
 
-script:
-  - cargo build --release
-
 before_deploy:
+  - ./build.sh
   - mv ./target/release/oscar "oscar-$TARGET."
 
 deploy: