anchor.diff:      command: test.sh
       parallelism: 25
       plugins:
  -      - docker-compose#v1.0.0:
  +      - docker-compose#v3.0.3:
             run: app
   ```
   
  
positive.code:   # Prebuild the app image, upload it to a registry for later steps
    - label: "\:docker\: Build"
      plugins:
        - docker-compose#v1.0.0:
            build: app
            image-repository: index.docker.io/org/repo
  
  
negative.code: steps:
    - command: yarn install && yarn run test
      plugins:
        - detect-clowns#v2.0.0: ~
        - docker#v3.3.0:
            image: node
            workdir: /app
  ```
  