Systemd master (v197-28-gb37844d3d72af3afbcb801476cf07c085519f392) is not running for me (in gnome-ostree). It crashes at startup with ABRT.
Backtrace:

#0  0x00007feae4f4bfe5 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:63
#1  0x000000000040b949 in crash (sig=6) at ../src/core/main.c:137
#2  <signal handler called>
#3  0x00007feae4f4bfe5 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:63
#4  0x00007feae4f4f188 in __GI_abort () at abort.c:90
#5  0x00007feae4f86ecb in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7feae5080950 "*** glibc detected *** %s: %s: 0x%s ***\n")
    at ../sysdeps/unix/sysv/linux/libc_fatal.c:200
#6  0x00007feae4f90eb6 in malloc_printerr (action=3, str=0x7feae5080b40 "double free or corruption (fasttop)", ptr=<optimized out>) at malloc.c:4949
#7  0x0000000000458441 in strv_freep (l=l@entry=0x7fff3bbe2380) at ../src/shared/strv.c:71
#8  0x0000000000432409 in unit_load_dropin (u=0x25c8db0) at ../src/core/load-dropin.c:171
#9  0x0000000000467842 in unit_load_fragment_and_dropin_optional (u=0x25c8db0) at ../src/core/unit.c:815
#10 0x000000000046cb0b in unit_load (u=0x25c8db0) at ../src/core/unit.c:887
#11 0x000000000040d81e in manager_dispatch_load_queue (m=m@entry=0x258bca0) at ../src/core/manager.c:842
#12 0x0000000000429008 in device_process_new_device (m=m@entry=0x258bca0, dev=dev@entry=0x25e8760, update_state=update_state@entry=true)
    at ../src/core/device.c:359
#13 0x0000000000429590 in device_fd_event (m=m@entry=0x258bca0, events=<optimized out>) at ../src/core/device.c:588
#14 0x0000000000410b81 in process_event (ev=0x7fff3bbe25f0, m=0x258bca0) at ../src/core/manager.c:1487
#15 manager_loop (m=0x258bca0) at ../src/core/manager.c:1604
#16 0x00000000004096ff in main (argc=1, argv=0x7fff3bbe2e48) at ../src/core/main.c:1735