ci: Test 64-bit and 32-bit bindings

Target x86_64-unknown-linux-gnu was already the default but make it
explicit wrt i686.

Signed-off-by: Mickaël Salaün <mic@digikod.net>

Author: l0kod

.github/workflows/rust.yml

@@ -137,15 +137,20 @@ jobs:
         rustup self update
         rustup default ${{ env.RUST_TOOLCHAIN }}
         rustup update ${{ env.RUST_TOOLCHAIN }}
+        rustup target add i686-unknown-linux-gnu
+        rustup target add x86_64-unknown-linux-gnu
 
-    - name: Build
-      run: rustup run ${{ env.RUST_TOOLCHAIN }} cargo build --verbose
+    - name: Build (x86_64)
+      run: rustup run ${{ env.RUST_TOOLCHAIN }} cargo build --target x86_64-unknown-linux-gnu --verbose
 
-    - name: Build tests
-      run: rustup run ${{ env.RUST_TOOLCHAIN }} cargo build --tests --verbose
+    - name: Build (x86)
+      run: rustup run ${{ env.RUST_TOOLCHAIN }} cargo build --target i686-unknown-linux-gnu --verbose
 
-    - name: Run tests against the local kernel (Landlock ABI ${{ env.LANDLOCK_CRATE_TEST_ABI }})
-      run: rustup run ${{ env.RUST_TOOLCHAIN }} cargo test --verbose
+    - name: Run tests against the local kernel (Landlock ABI ${{ env.LANDLOCK_CRATE_TEST_ABI }} on x86_64)
+      run: rustup run ${{ env.RUST_TOOLCHAIN }} cargo test --target x86_64-unknown-linux-gnu --verbose
+
+    - name: Run tests against the local kernel (Landlock ABI ${{ env.LANDLOCK_CRATE_TEST_ABI }} on x86)
+      run: rustup run ${{ env.RUST_TOOLCHAIN }} cargo test --target i686-unknown-linux-gnu --verbose
 
     - name: Run tests against Linux 6.1
       run: CARGO="rustup run ${{ env.RUST_TOOLCHAIN }} cargo" ./landlock-test-tools/test-rust.sh linux-6.1 2