Separate check on main (#288)

.github/workflows/main.yml

@@ -0,0 +1,33 @@
+name: Main branch
+
+on:
+  push:
+    branches:
+      - main
+    tags-ignore:
+      - "cli-v*.*.*"
+      - "lib-v*.*.*"
+
+jobs:
+  check:
+    strategy:
+      matrix:
+        platform:
+          - ubuntu
+          - windows
+          - macos
+
+    name: Check on ${{ matrix.platform }}
+    runs-on: "${{ matrix.platform }}-latest"
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: check
+