CircleCI 2.0 shows no information when submitting a CI file that has a dependency on a job that does not exist

[javcasas]

See https://github.com/javcasas/exp_js/pull/3/files

The special bit is:

workflows:
  version: 2
  build_and_test:
    jobs:
      - build
      - deploy:
          requires:
          - this-job-does-not-exist

The job this-job-does-not-exist is required as a dependency, but it is not declared anywhere. As a result, CircleCI says nothing. It doesn’t show any failure, or anything at all. And it’s a bit confusing.