rsync uses crc for its data integrity checks. Why is it you can't use it like any other OS utility?
$ date; which crc Thu Sep 24 07:54:55 CEST 2020 $ date; which rsync Thu Sep 24 07:54:59 CEST 2020 /usr/bin/rsync $ rsync --version rsync version 3.1.2 protocol version 31 Copyright (C) 1996-2015 by Andrew Tridgell, Wayne Davison, and others. Web site: http://rsync.samba.org/ Capabilities: 64-bit files, 64-bit inums, 64-bit timestamps, 64-bit long ints, socketpairs, hardlinks, symlinks, IPv6, batchfiles, inplace, append, ACLs, xattrs, iconv, symtimes, prealloc rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions. See the GNU General Public Licence for details. $ How do I get all packages to be locally installed using dpkg from a public Windows machine? lbrtchx