mdeinum (20) [Avatar] Offline
When running the build for chapter 3 CircleCI doesn't fails with the following error message

Probable error. It looks like you're trying to run a command in the background by using '&' and not the 'background: true' option. If so, the process will die quickly from the hangup (HUP) signal. See the the documentation on backgrounding. The bad smelling command was: docker run ${DOCKER_REPO}/${CIRCLE_PROJECT_REPONAME} &

Apparently something changed in the way background processes should run. I had to change the line to the following:

    # Run zap against the invoicer
          background: true

This is explained here
Julien Vehent (14) [Avatar] Offline
Thank you for catching this error. I will update the configuration in the repository.