Build/test across Linux/MacOS/Windows

.github/workflows/build-test.yml

@@ -11,12 +11,26 @@ env:
 
 jobs:
   build:
+    strategy:
+      fail-fast: false
 
-    runs-on: ubuntu-latest
+      matrix:
+        os:
+          - { prettyname: Windows, fullname: windows-latest }
+          - { prettyname: macOS, fullname: macos-latest }
+          - { prettyname: Linux, fullname: ubuntu-latest }
+
+        threadingMode: [ 'SingleThread', 'MultiThreaded' ]
+
+    timeout-minutes: 60
+
+    runs-on: ${{matrix.os.fullname}}
 
     steps:
       - uses: actions/checkout@v2
+
       - name: Build
         run: cargo build --verbose
+
       - name: Run tests
         run: cargo test --verbose

.github/workflows/catjam.yml

@@ -8,12 +8,16 @@ on:
 jobs:
   thanks:
     runs-on: ubuntu-latest
+
     if: github.event.pull_request.merged == true
+
     steps:
       - name: comment PR
         uses: unsplash/comment-on-pr@master
+
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
         with:
           msg: "![cat](https://cdn.discordapp.com/emojis/750350748746907669.gif?v=1)"
           check_for_duplicate_msg: true

.github/workflows/lint.yml

@@ -10,6 +10,7 @@ jobs:
   rustfmt:
     name: Formatter
     runs-on: ubuntu-latest
+
     steps:
       - uses: actions/checkout@v2