build-data/
  <project-name>/
    configurations/
      <version>.json
    runs/
      <id>.request.json
      <id>.stdout.log
      <id>.stderr.log
      <id>.status.json
    status/
      <step-name>/
        <version>.json
    artifacts/
      <step-name>/
        <version>/
          <artifact-file>

workspace/