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 
#include <net.h>
#include <net_processing.h>
#include <policy/feerate.h>
#include <policy/fees.h>
#include <policy/policy.h>
#include <rpc/server.h>
#include <rpc/register.h>
#include <rpc/blockchain.h>
#include <rpc/util.h>
#include <script/standard.h>
#include <script/sigcache.h>
#include <scheduler.h>
#include <shutdown.h>
#include <timedata.h>
#include <txdb.h>
#include <txmempool.h>
#include <torcontrol.h>
#include <ui_interface.h>
#include <util/system.h>
#include <util/moneystr.h>
#include <validationinterface.h>
#include <warnings.h>
#include <walletinitinterface.h>
#include <stdint.h>
#include <stdio.h>
#ifndef WIN32
#include <attributes.h>
#include <cerrno>
#include <signal.h>
#include <sys/stat.h>