Test cross build

Signed-off-by: Jacob Kiers <jacob@jacobkiers.net>

.drone.yml

@@ -7,13 +7,14 @@ platfomr:
 
 steps:
 - name: test
-  image: docker:dind
+  image: rust:1.62
   volumes:
   - name: dockersock
     path: /var/run
   commands:
-  - sleep 5 # give docker enough time to start
-  - docker ps -a
+  - cargo install cross --git https://github.com/cross-rs/cross
+  - cross build --release --target aarch64-unknown-linux-gnu
+  - ls -lahR target/
 
 services:
 - name: docker