Long tests fail: No output has been received in the last 10m

[native-api]

Use `travis_wait` but still see the output

Consider making that build report on its progress. Not outputting anything is awful UX because you can’t tell if anything’s happening or it’s stuck (which is bad because if it’s stuck, you are wasting your time waiting for it; and you also have no idea where exactly it’s stuck to be able to fix that). Travis’ auto termination is there specifically to kill stuck commands – for our mutual benefit, as per above. There is no supported way. travis_wait saves output to a log file and prints it all …