It's not clear what the actual failure was, since there aren't any error messages in the log:
D0315 20:32:46.716832373 18963 ev_posix.cc:169] Using polling engine: poll
D0315 20:32:46.717027089 18963 dns_resolver_ares.cc:488] Using ares dns resolver
Run on (32 X 2300 MHz CPU s)
2019-03-15 20:32:46
***WARNING*** Library was built as DEBUG. Timings may be affected.