Seen after linux update

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `../varnishevent -f varnishevent.conf -r varnish-4.1.0-doc.log -w out -v'.
Program terminated with signal SIGABRT, Aborted.
50	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt