feat: add a test workflow

.github/workflows/deploy_docs.yaml

@@ -5,6 +5,9 @@ on:
 # Replace `main` with your branch’s name
     push:
         branches: ["trunk"]
+        paths:
+            - 'docs/**'
+            - '.github/workflows/deploy_docs.yaml'
 # Specify to run a workflow manually from the Actions tab on GitHub
     workflow_dispatch:
 

.github/workflows/test.yaml

@@ -0,0 +1,29 @@
+name: Test rust
+on:
+    push:
+        branches:
+            - trunk
+    pull_request:
+        branches:
+            - trunk
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+
+        steps:
+        - name: Checkout repository
+          uses: actions/checkout@v3
+
+        - name: Install latest nightly
+          uses: actions-rs/toolchain@v1
+          with:
+            toolchain: nightly
+            override: true
+            components: rustfmt, clippy
+
+        - name: Build
+          run: cargo build
+
+        - name: Test
+          run: cargo test

cargo-difftests/tests/test_support/mod.rs

@@ -2,7 +2,6 @@ use std::{
     borrow::Cow,
     ffi::OsStr,
     path::{Path, PathBuf},
-    time::SystemTime,
 };
 
 use git2::{IntoCString, Oid, Repository};