removed the --no_requests_log from the java -jar command line for all tests.
this means h2o will dump it's http requests to the stdout. That had been disabled a while back, but apparently only because of out_of_bag_error_estimate param triggering an error detection. Escaped that in the list at h2o.check_sandbox_for_errors. So we'll see stuff like this in downloaded h2o logs in sandbox now?
h2o_192.168.0.37_54323.log:14-Sep 04:23:04.326 192.168.0.37:54323    20723 # Session INFO HTTPD: RFView data_key=iris2.hex model_key=__RFModel_b164469a-418d-475a-aeff-2255cd885054 out_of_bag_error_estimate=1

Also, had disabled echoing of warn|tcp stuff when I stopped echoing the new INFO messages in h2o stdout (echo to python stdout). Re-enabling echoing of those, although no error is detect (they're interesting to know about)

did some testing. Since these two are broad effect things, something could show up in test.0xdata.com, but I think things are okay
Merge branch 'master' of github.com:0xdata/h2o