Naive attempt to adapt rust github workflow

.forgejo/workflows/demo.yaml

@@ -1,6 +0,0 @@
-on: [push]
-jobs:
-  test:
-    runs-on: docker
-    steps:
-      - run: echo All Good

.forgejo/workflows/rust.yaml

@@ -0,0 +1,22 @@
+name: Rust
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    runs-on: docker
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose
+