v0.2.1.1 after 10 hours of mining

[2018-03-20 01:59:24] Pool xzc.f2pool.com connection was closed due to an error.
[2018-03-20 01:59:26] Pool xzc.f2pool.com successfully subscribed.
[2018-03-20 01:59:26] Pool xzc.f2pool.com failed to parse server rpc: {"id":1,"result":[[["mining.set_difficulty","deadbeefcafebabe21b9070000000000"],["mining.notify","deadbeefcafebabe21b9070000000000"]],"00004ac9",4],"error":null}
./f2pool: line 1: 12907 Segmentation fault      tdxminer -a lyra2z -o stratum+tcp://xzc.f2pool.com:5740 -u aAeTNKeYx42uhwyQKPRphGKf1oWmzExgnA.1 -p x