regression test failures.

[John Rushford]

I've started seeing this failure today when running regression tests,

traffic_server -R 1

Regression test(SDK_API_TSHttpConnectIntercept) still in progress
[SDK_API_TSHttpConnectIntercept] TSHttpConnect : [TestCase1] <<PASS>> { ok }
[SDK_API_TSHttpConnectIntercept] TSHttpTxnIntercept : [TestCase1] <<PASS>>
{ ok }
    REGRESSION_RESULT SDK_API_TSHttpConnectIntercept:           PASSED
REGRESSION TEST SDK_API_HttpAltInfo started
Regression test(HostDBTests) still in progress
Regression test(SDK_API_HttpAltInfo) still in progress
[SDK_API_HttpAltInfo] TSHttpAltInfoClientReqGet : [TestCase] <<PASS>> { ok }
[SDK_API_HttpAltInfo] TSHttpAltInfoCachedReqGet : [TestCase] <<PASS>> { ok }
[SDK_API_HttpAltInfo] TSHttpAltInfoCachedRespGet : [TestCase] <<PASS>> { ok
}
[SDK_API_HttpAltInfo] TSHttpAltInfoQualitySet : [TestCase] <<PASS>> { ok }
Fatal: switching to user root, failed to set group ID 0

I've also seen FreeBSD regression test failures in ci.

Any ideas on this failure shown?

thanks
John Rushford