No error message on stdout when configuration is rejected by rest server.

[chicm-ms]

Short summary about the issue/question:

nnictl create --config /mnt/d/tmp2/experiment_config.yml
when there are some config which is accepted by nnictl by rejected by rest server, the output of nnictl looks like this:

nnimanager.log

[3/20/2019, 2:48:57 PM] INFO [ 'Datastore initialization done' ]
[3/20/2019, 2:48:58 PM] INFO [ 'Rest server listening on: http://0.0.0.0:8080' ]
[3/20/2019, 2:48:58 PM] INFO [ 'Construct local machine training service.' ]
[3/20/2019, 2:48:58 PM] INFO [ 'RestServer start' ]
[3/20/2019, 2:48:58 PM] INFO [ 'RestServer base port is 8080' ]
[3/20/2019, 2:48:59 PM] INFO [ 'NNIManager setClusterMetadata, key: trial_config, value: {"command":"python3 mnist.py --batch_num 100","codeDir":"/mnt/d/Repos/nni/examples/trials/mnist","gpuNum":0}' ]
[3/20/2019, 2:48:59 PM] INFO [ 'required GPU number is 0' ]
[3/20/2019, 2:48:59 PM] ERROR [ { statusCode: 400,
error: 'Bad Request',
message:
'child "body" fails because [child "tuner" fails because ["includeIntermeidateResults" is not allowed]]' } ]
[3/20/2019, 2:48:59 PM] INFO [ 'Change NNIManager status from: INITIALIZED to: STOPPING' ]
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