Error parsing your wercker.yml: yaml: line 44: mapping values are not allowed in this context

wercker.yml

box:
  id: siloco/rails-box
  username: $DOCKERHUB_USR
  password: $DOCKERHUB_PWD
  tag: latest

build:
  # services:
  #  - id: postgres
  #    env:
  #      POSTGRES_PASSWORD: postgres
  #      POSTGRES_USER: postgres
  steps:
    - script:
      name: set db ENV variables
      code: |
        export RDS_HOSTNAME=$POSTGRES_PORT_5432_TCP_ADDR
        export RDS_DB_NAME='asdf'
        export RDS_USERNAME='asdf'
        export RDS_PASSWORD='adsf'

    # - bundle-install

    # - script:
    #   name: Prepare Database (rake db:migrate)
    #   code: RAILS_ENV=test rake db:migrate DONT_LOAD_ACTIVE_ADMIN=1

    # - script:
    #     name: Unit Testing (rspec)
    #     code: RAILS_ENV=test bundle exec rspec --fail-fast

    - script: 
      code: touch /dummy

    # archive successful build results
    - internal/docker-push:
      username: $DOCKERHUB_USR
      password: $DOCKERHUB_PWD
      repository: siloco/silo-box
      tag: $WERCKER_GIT_COMMIT

deploy:
  steps:
    - script:
      name: setup phase ENV variables (TODO: move to wercker config)
      code: |
        export SILO=/usr/dev/silo