[crunch-run] should be more tolerant of unsupported file types in the output directory
Seeing a fatal error in a job, leading to no outputs being saved at all:
error in CaptureOutput: error scanning files to copy to output: Unsupported file type (mode 200000600) in output dir: "/var/spool/cwl/REDACTEDtmp/tmp.fifo.read1"
That doesn't quite seem reasonable; if there are leftover fifos or named pipes, surely that should not make crunch-run error out. Printing a warning and just skipping the files of unsupported type in the copy job would be a better way to deal with this situation.