ci: test building for non-x86 target

rust-bindings/rust/.gitlab-ci.yml

@@ -137,6 +137,17 @@ build_v2020_1:
   script: cargo test --verbose --workspace --features v2020_1
 # all feature levels
 
+# non-x86 build
+build_aarch64:
+  stage: build
+  image: rust:buster
+  before_script:
+    - apt-get update && apt-get install -y libostree-dev
+    - rustup target add aarch64-unknown-linux-gnu
+    - curl -L "${SCCACHE_URL}" | tar -C /usr/bin/ -xz --wildcards --strip-components=1 '*/sccache'
+  script:
+    - PKG_CONFIG_ALLOW_CROSS=1 cargo build --verbose --workspace --all-features --target aarch64-unknown-linux-gnu
+
 # docs
 pages:
   stage: publish