https://travis-ci.org/github/bitcoin/bitcoin/jobs/679885530#L8791
{
    LOCK(cs_wallet);
    
    
    ReacceptWalletTransactions();
    
    chain().requestMempoolTransactions(*this);
}
bool CWallet::BackupWallet(const std::string& strDest) const
{
    return GetDatabase().Backup(strDest);
}
CKeyPool::CKeyPool()