elukey@stat1007:~$ apt-cache policy libsystemd0
libsystemd0:
  Installed: 241-5~bpo9+1
  Candidate: 241-5~bpo9+1
  Version table:
 *** 241-5~bpo9+1 1001
        100 http://mirrors.wikimedia.org/debian stretch-backports/main amd64 Packages
        100 /var/lib/dpkg/status
     232-25+deb9u12 500
        500 http://mirrors.wikimedia.org/debian stretch/main amd64 Packages
     232-25+deb9u11 500
        500 http://security.debian.org/debian-security stretch/updates/main amd64 Packages

elukey@stat1007:~$ sudo gdb systemd-sysusers
[..]
(gdb) r
Starting program: /bin/systemd-sysusers
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Creating group systemd-coredump with gid 491.
Creating user systemd-coredump (systemd Core Dumper) with uid 491 and gid 491.

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7b5fdfe in ?? () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007ffff7b5fdfe in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff7b43ad4 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff7b28bfb in putsgent () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff763cd7d in putsgent_sane (sg=<optimized out>, stream=<optimized out>) at ../src/basic/user-util.c:790
#4  0x00005555555579bd in putsgent_with_members (sg=0x7ffff7dd6760, gshadow=0x555555775660) at ../src/sysusers/sysusers.c:337
#5  0x00005555555588a4 in write_temporary_gshadow (tmpfile_path=<synthetic pointer>, tmpfile=<synthetic pointer>, gshadow_path=<optimized out>) at ../src/sysusers/sysusers.c:695
#6  write_files.lto_priv.6 () at ../src/sysusers/sysusers.c:753
#7  0x0000555555557309 in run (argv=<optimized out>, argc=<optimized out>) at ../src/sysusers/sysusers.c:1990
#8  main (argc=<optimized out>, argv=<optimized out>) at ../src/sysusers/sysusers.c:1997
(gdb) frame 4
#4  0x00005555555579bd in putsgent_with_members (sg=0x7ffff7dd6760, gshadow=0x555555775660) at ../src/sysusers/sysusers.c:337
337	../src/sysusers/sysusers.c: No such file or directory.
(gdb) print *sg
$1 = {sg_namp = 0x555555775ac0 "analytics-privatedata-users", sg_passwd = REDACTED, sg_adm = REDACTED, sg_mem = REDACTED}

elukey@stat1007:~$ sudo grep analytics-privatedata-users /etc/gshadow | wc -c
1175

elukey@stat1006:~$ sudo systemd-sysusers
Creating group systemd-coredump with gid 490.
Creating user systemd-coredump (systemd Core Dumper) with uid 490 and gid 490.
Segmentation fault