backup missing from database

[ewxrjk]

root     31711 31710 15 08:27 ?        01:19:34         rsync --archive --sparse --numeric-ids --compress --fuzzy --hard-links --delete --stats --xattrs --acls --one-file-system --rsync-path systemd-run --pipe --quiet --slice membound rsync --exclude=/[...]  --link-dest=/backup14/sfere/root/2021-05-30T13:38:10 --timeout=600 //. /backup14/sfere/root/2021-06-01T07:27:40/.
richard  30854     1  0 08:21 ?        00:00:00   /lib/systemd/systemd --user
richard  30857 30854  0 08:21 ?        00:00:00     (sd-pam)
richard   5457 30854  0 09:22 ?        00:00:00     /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
richard  30884     1  0 08:21 ?        00:00:05   tmux
richard  30885 30884  0 08:21 pts/2    00:00:00     -bash
richard  28965 30885  0 17:15 pts/2    00:00:00       ps -Hef
richard  28966 30885  0 17:15 pts/2    00:00:00       cat
richard@sfere:~$ really ls -l  /backup14/sfere/root
total 12
drwxr-xr-x 36 root root 4096 May 30 12:05 2021-05-30T13:38:10
-rw-rw-r--  1 root root    0 May 30 14:38 2021-05-30T13:38:10.incomplete
drwxr-xr-x 36 root root 4096 May 30 12:05 2021-05-31T14:43:46
-rw-rw-r--  1 root root    0 May 31 15:43 2021-05-31T14:43:46.incomplete
drwxr-xr-x 36 root root 4096 May 30 12:05 2021-06-01T07:27:40
-rw-r--r--  1 root root    0 Jun  1 08:27 2021-06-01T07:27:40.incomplete

sqlite> select * from backup where device="backup14" and host="sfere" and volume="root";
sfere|root|backup14|2021-05-30T13:38:10|1622381890|0|9|3|

The --link-dest argument is right in terms of the database but it's surprising that the intermediate backup attempt isn't represented.