Output with current master:

```
bench_bitcoin: bench/coin_selection.cpp:53: void CoinSelection(benchmark::State&): Assertion `success' failed.
{
    CMutableTransaction tx;
    tx.vout.resize(nInput + 1);
    tx.vout[nInput].nValue = nValue;
    std::unique_ptr<CWalletTx> wtx(new CWalletTx(&testWallet, MakeTransactionRef(std::move(tx))));
    set.emplace_back(COutput(wtx.get(), nInput, 0, true, true, true).GetInputCoin(), 0, true, 0, 0);
    wtxn.emplace_back(std::move(wtx));
}
static CAmount make_hard_case(int utxos, std::vector<OutputGroup>& utxo_pool)