Change build command

.github/workflows/main.yml

@@ -16,8 +16,9 @@ jobs:
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           args: --all-features
+      - run: cargo install cargo-when
       - name: Build
-        run: cargo build
+        run: ./build.sh
       - name: Run tests
         run: cargo test
   integration_tests:
@@ -29,9 +30,9 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
-      - uses: actions-rs/cargo@v1
-        with:
-          command: build
+      - run: cargo install cargo-when
+      - name: Build
+        run: ./build.sh
       - uses: actions/setup-go@v2
         with:
           go-version: "1.11.0"