update config portable

Author: rob-p

.github/build-setup.yml

@@ -4,6 +4,19 @@
     set -euo pipefail
     cp .cargo/config-portable.toml .cargo/config.toml
 
+- name: Verify runner CPU + AVX2 visibility
+  shell: bash
+  run: |
+    set -euo pipefail
+    uname -m
+    if [[ "$RUNNER_OS" == "Linux" ]]; then
+      lscpu | egrep -i 'Model name|Flags'
+      lscpu | grep -qi avx2
+    else
+      sysctl -n machdep.cpu.brand_string || true
+      sysctl -n machdep.cpu.features | grep -q AVX2
+    fi
+
 - name: Force AVX2 for x86_64
   shell: bash
   run: |

.github/workflows/release.yml

@@ -132,6 +132,18 @@ jobs:
           set -euo pipefail
           cp .cargo/config-portable.toml .cargo/config.toml
         shell: "bash"
+      - name: "Verify runner CPU + AVX2 visibility"
+        run: |
+          set -euo pipefail
+          uname -m
+          if [[ "$RUNNER_OS" == "Linux" ]]; then
+            lscpu | egrep -i 'Model name|Flags'
+            lscpu | grep -qi avx2
+          else
+            sysctl -n machdep.cpu.brand_string || true
+            sysctl -n machdep.cpu.features | grep -q AVX2
+          fi
+        shell: "bash"
       - name: "Force AVX2 for x86_64"
         run: |
           set -euo pipefail