Original command:
rsync -e 'sh -p -c "sh 0<&2 1>&2"' 127.0.0.1:/dev/null
In "sh 1>&2 0>&2", the - p parameter inheritance permission is missing after the command sh; Causing the failure of power raising;
Modified command:
rsync -e 'sh -p -c "sh -p 0<&2 1>&2"' 127.0.0.1:/dev/null

