diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 6cb625f4..46d4fd1a 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -424,7 +424,10 @@ jobs:
   job_test_macos:
     name: test Mac OS
     needs: [job_rust_release_channel, job_rust_msrv_os]
-    runs-on: macos-latest
+    strategy:
+      matrix:
+        os: [macos-11, macos-12, macos-13]
+    runs-on: ${{ matrix.os }}
     steps:
       - name: git checkout
         uses: actions/checkout@v4
@@ -432,6 +435,19 @@ jobs:
         with:
           channel: ${{ env.MSRV_UPLOAD }}
           bins: cargo-nextest
+      - name: create log.tgz
+        shell: bash
+        run: |
+          set -eux
+          uname -a
+          ((sudo -- log show | head -n 5000) > /var/log/log-show.txt) || true
+          sudo -- log collect --size 10m --output /var/log/log-collect.logarchive
+          export GZIP=-9
+          sudo -- tar -zcvf /tmp/log.tgz /var/log/ /Library/Logs ~/Library/Logs
+      - uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.os }} log.tgz
+          path: /tmp/log.tgz
       - name: nextest (all)
         shell: bash
         run: |