{"level":"error","ts":"2020-07-06T17:46:12.175+0800","caller":"go-grpc-middleware@v1.2.0/chain.go:25","msg":"finished unary call with code Unknown","grpc.start_time":"2020-07-06T17:46:11+08:00","grpc.request.deadline":"2020-07-06T17:46:12+08:00","system":"grpc","span.kind":"server","grpc.service":"pb.ImUser","grpc.method":"ImUserLoginOut","error":"<QuerySeter> no row found","grpc.code":"Unknown","grpc.time_ms":249.2519989013672}