[CI] flaky test: integration_systemd_rootless

[lifubang]

I saw it many times:

Cirrus CI / ci / centos-stream-9

❌ 01:10 integration_systemd_rootless

#
# runc run -d --console-socket /tmp/bats-run-yxEj3k/runc.ao265v/tty/sock test_update (status=0):
#
# runc update -r - test_update (status=1):
# time="2023-07-18T13:23:20Z" level=warning msg="Setting back cgroup configs failed due to error: rejecting memory limit 1024 <= usage 315392, your state.json and actual configs might be inconsistent."
# time="2023-07-18T13:23:20Z" level=error msg="rejecting memory limit 1024 <= usage 315392"
# runc state test_update (status=0):
# {
#   "ociVersion": "1.1.0-rc.3",
#   "id": "test_update",
#   "pid": 149409,
#   "status": "running",
#   "bundle": "/tmp/bats-run-yxEj3k/runc.ao265v/bundle",
#   "rootfs": "/tmp/bats-run-yxEj3k/runc.ao265v/bundle/rootfs",
#   "created": "2023-07-18T13:23:20.706413862Z",
#   "owner": ""
# }
# runc update -r - test_update (status=1):
# time="2023-07-18T13:23:20Z" level=warning msg="Setting back cgroup configs failed due to error: rejecting memory+swap limit 2048 <= usage 315392, your state.json and actual configs might be inconsistent."
# time="2023-07-18T13:23:20Z" level=error msg="rejecting memory+swap limit 2048 <= usage 315392"
# runc state test_update (status=0):
# {
#   "ociVersion": "1.1.0-rc.3",
#   "id": "test_update",
#   "pid": 149409,
#   "status": "running",
#   "bundle": "/tmp/bats-run-yxEj3k/runc.ao265v/bundle",
#   "rootfs": "/tmp/bats-run-yxEj3k/runc.ao265v/bundle/rootfs",
#   "created": "2023-07-18T13:23:20.706413862Z",
#   "owner": ""
# }
# runc update test_update --memory 1024 (status=0):
#
# runc state test_update (status=0):
# {
#   "ociVersion": "1.1.0-rc.3",
#   "id": "test_update",
#   "pid": 149409,
#   "status": "running",
#   "bundle": "/tmp/bats-run-yxEj3k/runc.ao265v/bundle",
#   "rootfs": "/tmp/bats-run-yxEj3k/runc.ao265v/bundle/rootfs",
#   "created": "2023-07-18T13:23:20.706413862Z",
#   "owner": ""
# }
ok 197 userns with simple mount
ok 198 userns with 2 inaccessible mounts
ok 199 userns with inaccessible mount + exec
ok 200 userns with bind mount before a cgroupfs mount # skip test requires cgroups_v1
ok 201 runc version
Connection to localhost closed.

make: *** [Makefile:131: localrootlessintegration] Error 1
make: Leaving directory '/home/runc'
Connection to localhost closed.

Exit status: 2

[kolyshkin]

The log shown above does not tell the name of the test. I think this is

update memory vs CheckBeforeUpdate

and the problem was fixed by commit f88a765 (PR #3960).