More than one mountpoint below /org/piuparts.debian.org/tmp detected! proc /org/piuparts.debian.org/tmp/tmp8wvYYM/proc proc rw,relatime 0 0 proc /org/piuparts.debian.org/tmp/tmpiZJb5u/proc proc rw,relatime 0 0 Zero or one mountpoint is normal for piuparts operation, more is not. Please investigate and cleanup.