chore(ci): debugging

.github/workflows/ci.yml

@@ -79,7 +79,7 @@ jobs:
       - name: Rust Cache
         uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2.7.3
         with:
-          prefix-key: v7-rust
+          prefix-key: v10-rust
           key: all-features-${{ matrix.all-features }}-msrv-pins-files-${{ hashFiles('**/msrv-pins.toml') }}
           cache-on-failure: true
 
@@ -90,8 +90,33 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Archive Cargo.lock to debug something
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: 'cargo-lock-before'
+          path: 'Cargo.lock'
+
+      - name: Prep Cargo.toml
+        run: just all_features=${{ matrix.all-features }} prep
+
+      - name: Archive Cargo.lock to debug something (after prep)
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: 'cargo-lock-after-prep'
+          path: 'Cargo.lock'
+
       - name: Run checks using cargo-minimal-versions
-        run: just all_features=${{ matrix.all-features }} check-minimal
+        run: just all_features=${{ matrix.all-features }} _check-minimal-only
+
+      - name: Archive Cargo.lock to debug something (after prep)
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: 'cargo-lock-after'
+          path: 'Cargo.lock'
+
 
   build:
     name: Build for Rust ${{ matrix.toolchain }}${{ matrix.experimental && ' (experimental)' || '' }} on ${{ matrix.os }}${{ matrix.ignore-lock && ' without Cargo.lock' || '' }}${{ matrix.all-features && ' with all features' || '' }}