Comment 1 for bug 2029352

I believe this is the relevant part from test-execute:

1739s exec-dynamicuser-statedir.service: About to execute: /usr/bin/sh -x -c 'test $$(find / \( -path /var/tmp -o -path /tmp -o -path /proc -o -path /dev/mqueue -o -path /dev/shm -o -path /sys/fs/bpf -o -path /dev/.lxc \) -prune -o -type d -writable -print 2>/dev/null | sort -u | tr -d \\n) = /var/lib/private/quux/pief/var/lib/private/waldo'
1739s exec-dynamicuser-statedir.service: Forked /usr/bin/sh as 1374
1739s PR_SET_MM_ARG_START failed, attempting PR_SET_MM_ARG_END hack: Operation not permitted
1739s PR_SET_MM_ARG_END hack failed, proceeding without: Operation not permitted
1739s exec-dynamicuser-statedir.service: User lookup succeeded: uid=65325 gid=65325
1742s Received SIGCHLD from PID 1374 (sh).
1742s Child 1374 (sh) died (code=exited, status=1/FAILURE)
1742s exec-dynamicuser-statedir.service: Failed to read oom_kill field of memory.events cgroup attribute: No such file or directory
1742s exec-dynamicuser-statedir.service: Child 1374 belongs to exec-dynamicuser-statedir.service.
1742s exec-dynamicuser-statedir.service: Main process exited, code=exited, status=1/FAILURE
1742s exec-dynamicuser-statedir.service: Failed with result 'exit-code'.
1742s exec-dynamicuser-statedir.service: Service will not restart (restart setting)
1742s exec-dynamicuser-statedir.service: Changed start -> failed
1742s exec-dynamicuser-statedir.service: Unit entered failed state.
1742s Spawning thread to nuke /tmp/systemd-private-e386f1fc8bcf4249b2d714258658fd11-exec-dynamicuser-statedir.service-h9gSex
1742s Spawning thread to nuke /var/tmp/systemd-private-e386f1fc8bcf4249b2d714258658fd11-exec-dynamicuser-statedir.service-Hof62v
1742s UID 65325 is no longer referenced, cleaning up its IPC.
1742s GID 65325 is no longer referenced, cleaning up its IPC.
1742s Failed to connect to nscd socket: No such file or directory
1742s Failed to connect to nscd socket: No such file or directory
1742s test_exec_dynamicuser: exec-dynamicuser-statedir.service: exit status 1, expected 0
1743s FAIL: test-execute (code: 134)
1743s Aborted (core dumped)

Not sure what the cause is yet.