(tramp-copy-failed-regexp, tramp-action-copy-failed): Add. (tramp-actions-copy-out-of-band): Add pair (tramp-copy-failed-regexp tramp-action-copy-failed). (tramp-action-out-of-band): Move "Permission denied" handling to tramp-action-copy-failed. (tramp-do-copy-or-rename-file-out-of-band): unwind-protect killing of process buffer.