SystemsLab 0.0.73

Fixed

• Fixed a typo in the action name for upload_artifact in systemslab.libsonnet.

Changed

• The job runner now emits the experiment id, job id, and job run number to at the start of the job log.
• The action binaries have been moved directly into the systemslab-actions debian package. The old action-specific packages no longer provide any files and can be removed with apt autoremove once the new versions are installed.