remove cargo cache

Looks like cargo cache is inside the Nix store.

.github/workflows/test.yml

@@ -37,20 +37,11 @@ jobs:
           name: soywod
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
           extraPullNames: nix-community
-      - name: Restore Cargo home
-        uses: actions/cache/restore@v4
-        id: cache-cargo-restore
-        with:
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
       - name: Build release
         run: |
+          nix build -L .#${{ matrix.target }}
           nix run -L .#${{ matrix.target }} -- --version
-          cp result/himalaya* .
+          cp result/himalaya.tgz result/himalaya.zip .
       - name: Upload release artifact
         uses: actions/upload-artifact@v4
         with:
@@ -58,13 +49,3 @@ jobs:
           path: |
             himalaya.tgz
             himalaya.zip
-      - name: Save Cargo home
-        uses: actions/cache/save@v4
-        id: cache-cargo-save
-        with:
-          key: ${{ steps.cache-cargo-restore.outputs.cache-primary-key }}
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/