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