Merge pull request #222 from veluca93/cross-ci

Add a cross-compiling CI for aarch64.

Author: HeroicKatora

.github/workflows/rust.yml

@@ -37,3 +37,35 @@ jobs:
         if: ${{ matrix.command == 'benchmark' && matrix.rust != '1.48.0' }}
         env:
           FEATURES: ${{ matrix.features }}
+
+  cross_compile_aarch64:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        rust: [nightly]
+        features: ["", "rayon"]
+
+    steps:
+      - name: Installing emulator and linker
+        run: |
+          sudo apt-get install qemu binfmt-support qemu-user-static gcc-aarch64-linux-gnu binutils-aarch64-linux-gnu
+
+      - name: Installing Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          override: true
+          toolchain: ${{ matrix.rust }}
+          target: aarch64-unknown-linux-musl
+      - uses: actions/checkout@v2
+      - name: build
+        run: >
+          cargo build --verbose --no-default-features --target aarch64-unknown-linux-musl --features "$FEATURES"
+        env:
+          CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER: aarch64-linux-gnu-gcc
+      - name: test
+        run: >
+          cargo test --tests --benches --no-default-features --target aarch64-unknown-linux-musl --features "$FEATURES"
+        env:
+          FEATURES: ${{ matrix.features }}
+          CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER: aarch64-linux-gnu-gcc