run matchrunner tests in CI

.github/workflows/rust-tests.yml

@@ -0,0 +1,31 @@
+name: Run rust tests
+
+on: [push]
+
+jobs:
+  test-rust:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Update local toolchain
+        run: |
+          rustup update
+          rustup component add clippy
+          rustup install nightly
+
+      - name: Toolchain info
+        run: |
+          cargo --version --verbose
+          rustc --version
+          cargo clippy --version
+      
+      - name: Setup tests
+        run: |
+          docker pull python:3.10-slim-buster
+
+      - name: Test
+        run: |
+          cd planetwars-matchrunner
+          cargo check
+          cargo test --all