ci: Fix cross builds in the CI

.cirrus.yml

@@ -0,0 +1,29 @@
+only_if: $CIRRUS_TAG == '' && ($CIRRUS_PR != '' || $CIRRUS_BRANCH == 'master')
+auto_cancellation: $CIRRUS_BRANCH != 'master'
+env:
+  CARGO_INCREMENTAL: '0'
+  CARGO_NET_GIT_FETCH_WITH_CLI: 'true'
+  CARGO_NET_RETRY: '10'
+  CARGO_TERM_COLOR: always
+  RUST_BACKTRACE: '1'
+  RUSTDOCFLAGS: -D warnings
+  RUSTFLAGS: -D warnings
+  RUSTUP_MAX_RETRIES: '10'
+
+freebsd_task:
+  name: test ($TARGET)
+  freebsd_instance:
+    image_family: freebsd-12-4
+  matrix:
+    - env:
+        TARGET: x86_64-unknown-freebsd
+    - env:
+        TARGET: i686-unknown-freebsd
+  setup_script:
+    # https://github.com/cirruslabs/cirrus-ci-docs/issues/483
+    - sudo sysctl net.inet.tcp.blackhole=0
+    - pkg install -y git
+    - curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal --default-toolchain stable --target $TARGET
+  test_script:
+    - . $HOME/.cargo/env
+    - cargo test --target $TARGET

.github/workflows/ci.yml

@@ -78,36 +78,64 @@ jobs:
     - name: Install Rust
       run: rustup update stable
     - name: Install cross
-      uses: taiki-e/install-action@v2
-      with:
-        # https://github.com/cross-rs/cross/issues/724
-        tool: [email protected]
+      uses: taiki-e/install-action@cross
+    # We don't test BSDs, since we already test them in Cirrus/vmactions.
     - name: Android
       if: startsWith(matrix.os, 'ubuntu')
       run: cross test --target arm-linux-androideabi
-    - name: NetBSD
-      if: startsWith(matrix.os, 'ubuntu')
-      run: cross build --target x86_64-unknown-netbsd
-    - name: FreeBSD
-      if: startsWith(matrix.os, 'ubuntu')
-      run: cross build --target x86_64-unknown-freebsd
     - name: iOS
       if: startsWith(matrix.os, 'macos')
-      run: cross build --target aarch64-apple-ios
+      run: |
+        rustup target add aarch64-apple-ios
+        cross build --target aarch64-apple-ios
     - name: Linux x32
       if: startsWith(matrix.os, 'ubuntu')
-      run: cross check --target x86_64-unknown-linux-gnux32
+      run: |
+        rustup target add x86_64-unknown-linux-gnux32
+        cross check --target x86_64-unknown-linux-gnux32
     - name: Fuchsia
       if: startsWith(matrix.os, 'ubuntu')
       run: |
-        rustup target add x86_64-fuchsia
-        cargo build --target x86_64-fuchsia
+        rustup target add x86_64-unknown-fuchsia
+        cargo build --target x86_64-unknown-fuchsia
     - name: illumos
       if: startsWith(matrix.os, 'ubuntu')
       run: |
         rustup target add x86_64-unknown-illumos
         cargo build --target x86_64-unknown-illumos
 
+  openbsd:
+    runs-on: macos-12
+    steps:
+    - uses: actions/checkout@v3
+    - name: Test OpenBSD
+      id: test
+      uses: vmactions/openbsd-vm@v0
+      with:
+        envs: CARGO_INCREMENTAL CARGO_NET_GIT_FETCH_WITH_CLI CARGO_NET_RETRY RUST_BACKTRACE RUSTFLAGS RUSTDOCFLAGS RUSTUP_MAX_RETRIES
+        usesh: true
+        # OpenBSD is tier 3 target, so install rust from package manager instead of rustup
+        prepare: |
+          pkg_add git rust
+        run: |
+          cargo test
+
+  dragonfly:
+    runs-on: macos-12
+    steps:
+    - uses: actions/checkout@v3
+    - name: Test Dragonfly BSD
+      id: test
+      uses: vmactions/dragonflybsd-vm@v0
+      with:
+        envs: CARGO_INCREMENTAL CARGO_NET_GIT_FETCH_WITH_CLI CARGO_NET_RETRY RUST_BACKTRACE RUSTFLAGS RUSTDOCFLAGS RUSTUP_MAX_RETRIES
+        usesh: true
+        # Dragonfly BSD is tier 3 target, so install rust from package manager instead of rustup
+        prepare: |
+          pkg install -y git rust
+        run: |
+          cargo test
+
   msrv:
     runs-on: ${{ matrix.os }}
     strategy: