Check MSRV

.github/workflows/msrv.yml

@@ -0,0 +1,19 @@
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: check MSRV
+
+jobs:
+  # check at least it can build
+  check-msrv:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/[email protected]
+
+      - name: Build
+        run: cargo build --manifest-path=./src/rust/Cargo.toml