Test 32-bit Windows build

Since it is still running in a 64-bit environment, and running the
whole test suite is slow on Windows, this will likely not be worth
keeping in full. It may subsequently be modified to run only some
restricted subset of the tests, so that it completes faster.

Author: EliahKagan

.github/workflows/ci.yml

@@ -309,6 +309,26 @@ jobs:
           GIX_TEST_IGNORE_ARCHIVES: '1'
         run: cargo nextest run --workspace --no-fail-fast
 
+  test-32bit-windows:
+    runs-on: windows-latest
+
+    env:
+      TARGET: i686-pc-windows-msvc
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ env.TARGET }}
+      - uses: Swatinem/rust-cache@v2
+      - name: cargo check default features
+        run: cargo check --target $env:TARGET --workspace --bins --examples
+      - uses: taiki-e/install-action@v2
+        with:
+          tool: nextest
+      - name: Test (nextest)
+        run: cargo nextest run --target $env:TARGET --workspace --no-fail-fast
+
   lint:
     runs-on: ubuntu-latest
 
@@ -504,6 +524,7 @@ jobs:
       - test-fast
       - test-fixtures-windows
       - test-32bit
+      - test-32bit-windows
       - lint
       - cargo-deny
       - check-packetline