split testing so that there is a separate test for minimum supported rust version

- this has to exclude integrations/tide as an indirect dependency requires rust 1.59.0

.github/workflows/ci.yml

@@ -16,8 +16,8 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          #          - { rust: stable, os: ubuntu-latest }
-          - { rust: 1.56.1, os: ubuntu-latest }
+          - { rust: stable, os: ubuntu-latest }
+          - { rust: 1.59.0, os: ubuntu-latest }
     steps:
       - name: Checkout
         uses: actions/checkout@v2
@@ -30,9 +30,36 @@ jobs:
       - name: Build with all features
         run: cargo build --all-features
       - name: Build
-        run: cargo build --all --verbose
+        run: cargo build --workspace --verbose
       - name: Run tests
-        run: cargo test --all --all-features
+        run: cargo test --workspace --all-features
+      - name: Clean
+        run: cargo clean
+
+  tests_min_cmopat:
+    name: Run min rust version tests - Rust (${{ matrix.rust }}) on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { rust: 1.56.1, os: ubuntu-latest }
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: true
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+      # We exclude async-graphql-tide since it indirectly depends on async-global-executor which requires rust 1.59+
+      - name: Build with all features
+        run: cargo build --all-features
+      - name: Build
+        run: cargo build --workspace --exclude async-graphql-tide --verbose
+      - name: Run tests
+        run: cargo test --workspace --exclude async-graphql-tide --all-features
       - name: Clean
         run: cargo clean
 
@@ -133,7 +160,7 @@ jobs:
         run: cargo clippy --all
         working-directory: ./examples
       - name: Build examples
-        run: cargo build --all --verbose
+        run: cargo build --workspace --verbose
         working-directory: ./examples
       - name: Clean examples
         run: cargo clean