Hello
    
I have configured replication using dsync. It fails with a message
Error: Couldn't create lock /home/admin/.dovecot-sync.lock: No such file or directory
This directory predictably does not exist - all my users are
      supposed to be virtual.  I can not find an option to switch this
      off. At the same time if I try manual replication I get segfault
      error    
    
    
Mar 30 17:17:24 localhost.localdomain dovecot[29063]:
      dsync-server(admin@asergis.com): Error: Couldn't create lock
      /home/admin/.dovecot-sync.lock: No such file or directory
      Mar 30 17:17:54 localhost.localdomain dovecot[29063]:
      dsync-server(admin@asergis.com): Error: sieve-storage: couldn't
      find storage root directory; sieve_dir was left unconfigured and
      autodetection failed
      Mar 30 17:17:54 localhost.localdomain dovecot[29063]:
      dsync-server(admin@asergis.com): Fatal: master: service(doveadm):
      child 29133 killed with signal 11 (core dumps disabled)
      Mar 30 17:17:54 localhost.localdomain kernel:
      doveadm-server[29133]: segfault at 58 ip 00007fa0608c9ca1 sp
      00007fffbf349480 error 4 in
      lib10_doveadm_sieve_plugin.so[7fa0608c2000+b000]
      Mar 30 17:22:25 localhost.localdomain dovecot[29063]:
      dsync-server(admin@asergis.com): Error: Couldn't create lock
      /home/admin/.dovecot-sync.lock: No such file or directory
      Mar 30 17:27:58 localhost.localdomain kernel: doveadm[29153]:
      segfault at 58 ip 00007fc1e65baca1 sp 00007ffd1a78b020 error 4 in
      lib10_doveadm_sieve_plugin.so[7fc1e65b3000+b000]
      
      
My OS:
# cat /etc/os-release 
      NAME="CentOS Linux"
      VERSION="7 (Core)"
      ID="centos"
      ID_LIKE="rhel fedora"
      VERSION_ID="7"
      PRETTY_NAME="CentOS Linux 7 (Core)"
      ANSI_COLOR="0;31"
      CPE_NAME="cpe:/o:centos:centos:7"
      HOME_URL="https://www.centos.org/"
      BUG_REPORT_URL="https://bugs.centos.org/"
      
      CENTOS_MANTISBT_PROJECT="CentOS-7"
      CENTOS_MANTISBT_PROJECT_VERSION="7"
      REDHAT_SUPPORT_PRODUCT="centos"
      REDHAT_SUPPORT_PRODUCT_VERSION="
    
My dovecot:
# dovecot --version