anchor.diff:  steps:
     - command: yarn install && yarn run test
       plugins:
  -      - docker#v1.0.0:
  +      - docker#v3.3.0:
             image: node
             workdir: /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:     command: test.sh
      parallelism: 25
      plugins:
        - docker-compose#v3.0.3:
            run: app
  ```
  
  