Recent failure results

OK: 0, NG: 2, 2019-12-27 00:06:23 +0900 ~ 2019-12-30 00:06:23 +0900

trunk-nopara@silicon-docker	2019-12-29 10:05:36 +0900	NG (8ce5d46e66)		[LOG]
trunk-test@ruby-sky3	2019-12-27 10:38:24 +0900	NG (8c5430e274)		[LOG]