tst_modelreplicatest failed

agent:2018/12/28 14:34:18 build.go:193: /Users/qt/work/qt/qtremoteobjects/tests/auto/modelreplica/target_wrapper.sh  ./tst_modelreplicatest -o /Users/qt/work/testresults/tests/auto/modelreplica177224671,xml -o -,txt
agent:2018/12/28 14:34:18 build.go:193: ********* Start testing of ModelreplicaTest *********
agent:2018/12/28 14:34:18 build.go:193: Config: Using QtTest library 5.12.0, Qt 5.12.0 (x86_64-little_endian-lp64 shared (dynamic) release build; by Clang 8.1.0 (clang-802.0.42) (Apple))
agent:2018/12/28 14:34:18 build.go:193: PASS   : ModelreplicaTest::initTestCase()
agent:2018/12/28 14:34:18 build.go:193: QWARN  : ModelreplicaTest::basicFunctions(non-templated enableRemoting) qt.remoteobjects: "localhost"  is not an IP address, trying to resolve it
agent:2018/12/28 14:34:19 build.go:193: PASS   : ModelreplicaTest::basicFunctions(non-templated enableRemoting)
agent:2018/12/28 14:34:19 build.go:193: QWARN  : ModelreplicaTest::basicFunctions(templated enableRemoting) qt.remoteobjects: "localhost"  is not an IP address, trying to resolve it
agent:2018/12/28 14:34:19 build.go:193: PASS   : ModelreplicaTest::basicFunctions(templated enableRemoting)
agent:2018/12/28 14:34:19 build.go:193: QWARN  : ModelreplicaTest::nullModel() qt.remoteobjects: "localhost"  is not an IP address, trying to resolve it
agent:2018/12/28 14:34:19 build.go:193: QWARN  : ModelreplicaTest::nullModel() qt.remoteobjects: QRemoteObjectSourceBase: Cannot replicate a NULL object "tracks"
agent:2018/12/28 14:34:19 build.go:193: FAIL!  : ModelreplicaTest::nullModel() 'replica->waitForSource(100)' returned FALSE. ()
agent:2018/12/28 14:34:19 build.go:193:    Loc: [tst_modelreplicatest.cpp(99)]
agent:2018/12/28 14:34:19 build.go:193: PASS   : ModelreplicaTest::cleanupTestCase()