Add cross compilation

.github/workflows/build.yml

@@ -22,6 +22,15 @@ jobs:
           toolchain: stable
           profile: minimal
           override: true
+          components: rustfmt, clippy
+
+      - name: Add ARM64 target
+        run: rustup target add aarch64-unknown-linux-gnu
+
+      - name: Install ARM64 toolchain
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-aarch64-linux-gnu
 
       - name: Cache dependencies
         uses: actions/cache@v3
@@ -29,18 +38,34 @@ jobs:
           path: |
             ~/.cargo
             target/
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          key: "${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}"
           restore-keys: |
             ${{ runner.os }}-cargo-
 
-      - name: Build
+      - name: Build (x86_64)
         uses: actions-rs/cargo@v1
         with:
           command: build
           args: --release --all-features
 
+      - name: Build (ARM64)
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --all-features --target aarch64-unknown-linux-gnu
+        env:
+          CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER: aarch64-linux-gnu-gcc
+
       - name: Run tests
         uses: actions-rs/cargo@v1
         with:
           command: test
           args: --all-features
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: binaries
+          path: |
+            target/release/${{ github.event.repository.name }}
+            target/aarch64-unknown-linux-gnu/release/${{ github.event.repository.name }}