getrusage04 failed on T-azure-4.15

[Po-Hsu Lin]

We used to have a bug for this issue, see bug 1905396

The solution is to use systemd to skip this test on Microsoft Hyper-V instances

However this is not working on Trusty.

Checking for required user/group ids

'nobody' user id and group found.
'bin' user id and group found.
'daemon' user id and group found.
Users group found.
Sys group found.
Required users/groups exist.
no big block device was specified on commandline.
Tests which require a big block device are disabled.
You can specify it with option -z
INFO: Test start time: Thu Sep 16 13:30:01 UTC 2021
COMMAND: /opt/ltp/bin/ltp-pan -q -e -S -a 31949 -n 31949 -f /tmp/ltp-gnLZF9WE1r/alltests -l /dev/null -C /dev/null -T /dev/null
LOG File: /dev/null
FAILED COMMAND File: /dev/null
TCONF COMMAND File: /dev/null
Running tests.......
sh: 1: systemd-detect-virt: not found
sh: 1: systemd-detect-virt: not found
getrusage04 0 TINFO : Expected timers granularity is 4000 us
getrusage04 0 TINFO : Using 1 as multiply factor for max [us]time increment (1000+4000us)!
getrusage04 0 TINFO : utime: 0us; stime: 5751us
getrusage04 0 TINFO : utime: 0us; stime: 6137us
getrusage04 0 TINFO : utime: 4581us; stime: 9162us
getrusage04 0 TINFO : utime: 4581us; stime: 9557us
getrusage04 0 TINFO : utime: 4700us; stime: 18802us
getrusage04 1 TFAIL : getrusage04.c:133: stime increased > 5000us:
INFO: ltp-pan reported some tests FAIL
LTP Version: 20210121
INFO: Test end time: Thu Sep 16 13:30:01 UTC 2021

After discussed with krzk, it's not worth it to implement virt-detection for this.
Let's use this bug to hint this failure.

[Po-Hsu Lin (cypressyew)]

BTW it seems this is only happening on Standard_A2_v2