tidb: scan_test.go:testScanSuite.TestScan failed

scan_test.go:testScanSuite.TestScan

[2020-08-07T03:26:57.316Z] ----------------------------------------------------------------------
[2020-08-07T03:26:57.316Z] FAIL: scan_test.go:65: testScanSuite.TestScan
[2020-08-07T03:26:57.316Z]
[2020-08-07T03:26:57.316Z] scan_test.go:110:
[2020-08-07T03:26:57.316Z]     check(c, scan, rowNum, false)
[2020-08-07T03:26:57.316Z] scan_test.go:69:
[2020-08-07T03:26:57.316Z]     c.Assert([]byte(k), BytesEquals, encodeKey(s.prefix, s08d("key", i)))
[2020-08-07T03:26:57.316Z] ... bytes_one []uint8 = []byte{0x73, 0x65, 0x65, 0x6b, 0x5f, 0x31, 0x35, 0x39, 0xff, 0x36, 0x37, 0x37, 0x30, 0x36, 0x37, 0x34, 0x5f, 0xff, 0x6b, 0x65, 0x79, 0x30, 0x30, 0x30, 0x30, 0x30, 0xff, 0x34, 0x32, 0x35, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfa}
[2020-08-07T03:26:57.316Z] ... bytes_two []uint8 = []byte{0x73, 0x65, 0x65, 0x6b, 0x5f, 0x31, 0x35, 0x39, 0xff, 0x36, 0x37, 0x37, 0x30, 0x36, 0x37, 0x34, 0x5f, 0xff, 0x6b, 0x65, 0x79, 0x30, 0x30, 0x30, 0x30, 0x30, 0xff, 0x33, 0x37, 0x39, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfa}
[2020-08-07T03:26:57.316Z]

Latest failed builds: https://internal.pingcap.net/idc-jenkins/job/tidb_ghpr_unit_test/45604/display/redirect