roachtest: schemachange/random-load failed about cockroach HOT 3 CLOSED

(schemachange_random_load.go:123).runSchemaChangeRandomLoad: full command output in run_135342.262980694_n1_workload-run-schemac.log: COMMAND_PROBLEM: exit status 1
test artifacts and logs in: /artifacts/schemachange/random-load/run_1

{
 "workerId": 0,
 "clientTimestamp": "14:03:32.018255",
 "ops": null,
 "expectedExecErrors": "",
 "expectedCommitErrors": "",
 "message": "WATCH DOG: failed to get session information: context canceled\n"
}
{
 "workerId": 0,
 "clientTimestamp": "14:03:32.018337",
 "ops": null,
 "expectedExecErrors": "",
 "expectedCommitErrors": "",
 "message": "WATCH DOG: failed to get session information: context canceled\n"
}
{
 "workerId": 0,
 "clientTimestamp": "14:03:32.018378",
 "ops": null,
 "expectedExecErrors": "",
 "expectedCommitErrors": "",
 "message": "WATCH DOG: failed to get session information: context canceled\n"
}
{
 "workerId": 0,
 "clientTimestamp": "14:03:32.019588",
 "ops": null,
 "expectedExecErrors": "",
 "expectedCommitErrors": "",
 "message": "WATCH DOG: failed to get session information: context canceled\n"
}
Schema Workload Stats
Total Schema Statements Executed = 3410
Total Schema Statements Succeeded = 3410
Total Schema Statement Expected Failures = 0
Total Transactions Committed = 443
Total Transactions Rolled Back = 4194
Total Transactions Executed = 4637

{
 "workerId": 17,
 "clientTimestamp": "14:03:29.516624",
 "ops": [
  "BEGIN",
  {
   "sql": "CREATE FUNCTION udf_w17_176(IN p1 schema_w12_61.enum_w1_81)\n\tRETURNS VOID\n\tLANGUAGE SQL\n\tAS $$ SELECT NULL $$",
   "expectedExecErr": "42P01"
  }
 ],
 "expectedExecErrors": "42P01",
 "expectedCommitErrors": "",
 "message": "***FAIL; Failed to receive an execution error when errors were expected",