Cron running no entry in log

Cause I seen them. I think it has too do with log level which I raised

“cron”,“method”:"–",“url”:"–",“message”:“Finished background job, the job took : 0 seconds, this job is an instance of class : OCA\Files\BackgroundJob\CleanupFileLocks with arguments : “}
{“reqId”:“sIg9GBSYqtVJCw5RdHdK”,“level”:0,“time”:“2018-09-09T22:00:02+00:00”,“remoteAddr”:””,“user”:"–",“app”:“cron”,“method”:"–",“url”:"–",“message”:“Started background job of class : OCA\Files_Sharing\DeleteOrphanedSharesJob with arguments : “}
{“reqId”:“sIg9GBSYqtVJCw5RdHdK”,“level”:0,“time”:“2018-09-09T22:00:02+00:00”,“remoteAddr”:””,“user”:"–",“app”:“cron”,“method”:"–",“url”:"–",“message”:“Finished background job, the job took : 0 seconds, this job is an instance of class : OCA\Files_Sharing\DeleteOrphanedSharesJob with arguments : “}
{“reqId”:“sIg9GBSYqtVJCw5RdHdK”,“level”:0,“time”:“2018-09-09T22:00:02+00:00”,“remoteAddr”:””,“user”:"–",“app”:“cron”,“method”:"–",“url”:"–",“message”:"Started background job of class : OCA\Files_Trashbin\BackgroundJob\ExpireTrash with arguments : "}