// and not the original fee. We also update node[1]'s relevant config as
// do_claim_payment_along_route expects us to never overpay.
nodes[1].node.channel_state.lock().unwrap().by_id.get_mut(&chan_id_2).unwrap()
- .config.mutable.forwarding_fee_base_msat += 100_000;
+ .config.options.forwarding_fee_base_msat += 100_000;
new_route.paths[0][0].fee_msat += 100_000;
assert!(nodes[0].node.retry_payment(&new_route, payment_id_1).is_err()); // Shouldn't be allowed to retry a fulfilled payment