run tests in CI

.github/workflows/ci.yml

@@ -8,32 +8,49 @@ on:
       - trying
 
 jobs:
-  msrv:
-    name: Rust MSRV
+  check:
+    name: check
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        build: [msrv, stable]
+        features:
+          [
+            "",
+            "--no-default-features",
+            "--no-default-features --features use_alloc",
+            "--all-targets --all-features",
+          ]
+        include:
+          - build: msrv
+            rust: 1.62.1
+          - build: stable
+            rust: stable
+        exclude:
+          - build: msrv
+            # we only care about the MSRV with respect to the lib target
+            features: "--all-targets --all-features"
     steps:
-      - uses: actions/checkout@v2
-      - uses: dtolnay/rust-toolchain@1.36.0
-      - run: cargo check --no-default-features
-      - run: cargo check --no-default-features --features "use_alloc"
-      - run: cargo check
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.rust }}
+      - run: cargo check ${{ matrix.features }}
 
-  stable:
-    name: Rust Stable
+  test:
+    name: test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: dtolnay/rust-toolchain@stable
-      - run: cargo check --no-default-features
-      - run: cargo check --no-default-features --features "use_alloc"
-      - run: cargo test
+      - run: cargo test --all-features
 
   # https://github.com/rust-lang/crater/blob/9ab6f9697c901c4a44025cf0a39b73ad5b37d198/.github/workflows/bors.yml#L125-L149
   end-success:
     name: bors build finished
     if: success()
     runs-on: ubuntu-latest
-    needs: [msrv,stable]
+    needs: [check, test]
 
     steps:
       - name: Mark the job as successful