standalone moxi doesn't work with 2.5.0 builds

moxi started at .17
/opt/moxi/bin/moxi -u root -Z usr=Administrator,pwd=password,port_listen=51500,concurrency=1024,wait_queue_timeout=200,connect_timeout=400,connect_max_errors=3,connect_retry_interval=30000,auth_timeout=100,downstream_conn_max=16,downstream_timeout=5000,cycle=200,default_bucket_name=default http://172.27.33.18:8091/pools/default/bucketsStreaming/default -d

started load using mcsoda
lib/perf_engines/mcsoda.py 172.27.33.17:51500 vbuckets=1024 doc-gen=0 doc-cache=0 ratio-creates=0.9 ratio-sets=0.9 min-value-size=1024 max-items=1000000 ratio-deletes=0.1 exit-after-creates=0 threads=4 prefix=default

same setup works for 2.1.0 builds