sauron: crash on fee estimation

[darosior]

2021-09-13T10:55:49.308Z **BROKEN** lightningd: /home/lightningd/.lightning/plugins/sauron/sauron.py error: bad response to estimatefees (bad 'result' field), response was {"jsonrpc": "2.0", "id": 113037, "error": {"code": -32600, "message": "Error while processing estimatefees: '2'", "traceback": "Traceback (most recent call last):\n  File \"/home/lightningd/.local/lib/python3.9/site-packages/pyln/client/plugin.py\", line 564, in _dispatch_request\n    result = self._exec_func(method.func, request)\n  File \"/home/lightningd/.local/lib/python3.9/site-packages/pyln/client/plugin.py\", line 549, in _exec_func\n    return func(*ba.args, **ba.kwargs)\n  File \"/home/lightningd/.lightning/plugins/sauron/sauron.py\", line 199, in estimatefees\n    very_urgent = int(feerates[\"2\"] * 10**3)\nKeyError: '2'\n"}}

[darosior]

Ok, we need to check indexes there:

plugins/sauron/sauron.py

Lines 180 to 184 in c4a1a70

	# It returns sat/vB, we want sat/kVB, so multiply everything by 10**3
	slow = int(feerates["144"] * 10**3)
	normal = int(feerates["5"] * 10**3)
	urgent = int(feerates["3"] * 10**3)
	very_urgent = int(feerates["2"] * 10**3)