Workers terminated by a cancel.
Scans run in a worker.
Workers that failed (error, crash, heap limit).
Heap limit of a scan worker in MB; 0 means no limit.
Scans waiting for the running one.
Running workers (at most one).
A worker with loaded modules waits for the next scan (started ahead or from the last scan).
Scans started in a worker since the server started.
State of the scan host for server-status.