Couchbase 3.0.3-1716 nodes continuously restarting with error

Nodes are continuously restarting after the following error occurs:

Port server ns_server on node ‘babysitter_of_ns_1@127.0.0.1’ exited with status 139. Restarting. Messages: Apache CouchDB has started. Time to relax.
working as port
“52298”: Booted. Waiting for shutdown request
[os_mon] memory supervisor port (memsup): Erlang has closed
[os_mon] cpu supervisor port (cpu_sup): Erlang has closed

Full output of the logs is attached.

couchbase_logs_2.zip (26.3 KB)