Deployments actions (start, restart, stop, git push, ...) are slower than usual. We are looking into this.
13:09 UTC: We are going to restart one of the deployment core system. Deployments actions (like the one above) will be unavailable for up to 30 minutes. All actions will be queued and executed at the end of the maintenance.
13:40 UTC: Another problem occurred during the restart of that system. We are now trying to fix this one.
EDIT 14:03 UTC: Deployments are available since ~5 minutes now. We are still cleaning things up before closing this incident.
EDIT 14:30 UTC: Everything should be back to normal now. Sorry for the extra maintenance time and the deployments unavailability.