Reported here: https://github.com/bitcoin/bitcoin/pull/10244#issuecomment-378035305

Travis log here: https://travis-ci.org/bitcoin/bitcoin/jobs/361243719#L2810

Note the JSON exception:

```
test_framework.authproxy.JSONRPCException: The mempool was not loaded yet (-1) 
```

That exception was introduced here: https://github.com/bitcoin/bitcoin/commit/cb1e319fe9e198c9c5cf5236fe9af5a3d748b9e8#diff-a0c8f511d90e83aa9b5857e819ced344R1617

cc @jtimon 
while (!fHaveGenesis && !ShutdownRequested()) {
            g_genesis_wait_cv.wait_for(lock, std::chrono::milliseconds(500));
        }
        uiInterface.NotifyBlockTip_disconnect(BlockNotifyGenesisWait);
    }
    if (ShutdownRequested()) {
        return false;
    }
    
    int chain_active_height;
    
    {
        LOCK(cs_main);
        LogPrintf("mapBlockIndex.size() = %u\n", mapBlockIndex.size());
        chain_active_height = chainActive.Height();
    }
    LogPrintf("nBestHeight = %d\n", chain_active_height);
    if (gArgs.GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION))
        StartTorControl();
    Discover();
    
    if (gArgs.GetBoolArg("-upnp", DEFAULT_UPNP)) {
        StartMapPort();
    }
    CConnman::Options connOptions;
    connOptions.nLocalServices = nLocalServices;
    connOptions.nMaxConnections = nMaxConnections;
    connOptions.nMaxOutbound = std::min(MAX_OUTBOUND_CONNECTIONS, connOptions.nMaxConnections);