It looks like the compile defaults of the ctl and mi_fifo module and the
default kamailio.conf/kamctlrc conflict.
kamailio tries to open:
/tmp/buildd/kamailio-4.3.1+jessie/debian/kamailio/var/run/kamailio//kamailio_ctl
/tmp/buildd/kamailio-4.3.1+jessie/debian/kamailio/var/run/kamailio/kamailio_fifo
and will fail to run, unless explicitly set to conf paths are set to
/var/run/kamailio/kamailio_(ctl|fifo)