This one also has an 'unusual' failure (in rootless):

not ok 317 podman pod create --share
# (from function `is' in file ./helpers.bash, line 866,
#  in test file ./200-pod.bats, line 361)
#   `is "$output" "foobar" "--hostname should work with non share UTS namespace"' failed
# [03:44:53.944073044] $ /usr/bin/podman-remote rm -t 0 --all --force --ignore
# [03:44:53.977405950] $ /usr/bin/podman-remote ps --all --external --format {{.ID}} {{.Names}}
# [03:44:54.011848519] $ /usr/bin/podman-remote images --all --format {{.Repository}}:{{.Tag}} {{.ID}}
# [03:44:54.044851049] quay.io/libpod/testimage:20221018 f5a99120db64
# [03:44:54.059477547] $ /usr/bin/podman-remote pod create --share bogus --name nikbwy7rwa
# [03:44:54.318446449] Error: failed to make pod: invalid kernel namespace to share: bogus. Options are: cgroup, ipc, net, pid, uts or none
# [03:44:54.322418797] [ rc=125 (expected) ]
# [03:44:54.333119738] $ /usr/bin/podman-remote pod create --share ipc --name nikbwy7rwa
# [03:44:54.403914593] 2a1eafc662852a1cdcd9e8b76785a294bdfad5fc538ba0d0f8127f87085ca60b
# [03:44:54.408391671] $ /usr/bin/podman-remote pod inspect nikbwy7rwa --format {{.SharedNamespaces}}
# [03:44:54.441022034] [ipc]
# [03:44:54.447194595] $ /usr/bin/podman-remote run --rm --pod nikbwy7rwa --hostname foobar quay.io/libpod/testimage:20221018 hostname
# [03:44:54.903030895] foobar
# time="2023-08-11T03:44:54Z" level=error msg="Removing container 6b593bc09231fd004addb848a76fa8c868c3ec79db25f8df75e8d35fadcc7eab: container \"6b593bc09231fd004addb848a76fa8c868c3ec79db25f8df75e8d35fadcc7eab\" is mounted and cannot be removed without using force: container state improper"
# #/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
# #|     FAIL: --hostname should work with non share UTS namespace
# #| expected: 'foobar'
# #|   actual: 'foobar'
# #|         > 'time="2023-08-11T03:44:54Z" level=error msg="Removing container 6b593bc09231fd004addb848a76fa8c868c3ec79db25f8df75e8d35fadcc7eab: container \"6b593bc09231fd004addb848a76fa8c868c3ec79db25f8df75e8d35fadcc7eab\" is mounted and cannot be removed without using force: container state improper"'
# #\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# [03:44:54.912439781] $ /usr/bin/podman-remote pod rm -f -t 0 -a
# [03:44:55.022366586] Error: not all containers could be removed from pod 2a1eafc662852a1cdcd9e8b76785a294bdfad5fc538ba0d0f8127f87085ca60b: removing pod containers. 1 error occurred:
#   * cleaning up container 3ce9fd7291315c1eff76bda68aef84620735dad35153478a6ddb85bcfdcbaf47: unmounting container 3ce9fd7291315c1eff76bda68aef84620735dad35153478a6ddb85bcfdcbaf47 storage: cleaning up container 3ce9fd7291315c1eff76bda68aef84620735dad35153478a6ddb85bcfdcbaf47 storage: unmounting container 3ce9fd7291315c1eff76bda68aef84620735dad35153478a6ddb85bcfdcbaf47 root filesystem: unmounting "/home/testuser/.local/share/containers/storage/overlay/abf82780a3c719d8969b20d370bad641a63842319690f243d6e9462ab1f4cb09/merged": invalid argument
# [03:44:55.024241263] [ rc=125 (** EXPECTED 0 **) ]
# #/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
# #| FAIL: exit code is 125; expected 0
# #\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# [03:44:55.026109760] $ /usr/bin/podman-remote rm -f -t 0 -a
# [03:44:55.149223945] $ /usr/bin/podman-remote rmi --ignore localhost/podman-pause:4.6.1-1691705275
# [03:44:55.178101164] Error: image used by 3ce9fd7291315c1eff76bda68aef84620735dad35153478a6ddb85bcfdcbaf47: image is in use by a container: consider listing external containers and force-removing image
# [03:44:55.179819148] [ rc=2 (** EXPECTED 0 **) ]
# #/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
# #| FAIL: exit code is 2; expected 0
# #\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# # [teardown]
# [03:44:55.181581252] $ /usr/bin/podman-remote pod rm -t 0 --all --force --ignore
# [03:44:55.219082981] 2a1eafc662852a1cdcd9e8b76785a294bdfad5fc538ba0d0f8127f87085ca60b
# [03:44:55.220887837] $ /usr/bin/podman-remote rm -t 0 --all --force --ignore
# [03:44:55.249065602] $ /usr/bin/podman-remote network prune --force
# [03:44:55.277532433] $ /usr/bin/podman-remote volume rm -a -f
# setup(): removing stray external container 3ce9fd729131 (2a1eafc66285-infra)
# [setup] $ podman rm -f 3ce9fd729131
# Error: removing storage for container "3ce9fd729131": unmounting "/home/testuser/.local/share/containers/storage/overlay/abf82780a3c719d8969b20d370bad641a63842319690f243d6e9462ab1f4cb09/merged": invalid argument
# setup(): removing stray external container 6b593bc09231 (crazy_bose)
# [setup] $ podman rm -f 6b593bc09231
# Error: removing storage for container "6b593bc09231": unmounting "/home/testuser/.local/share/containers/storage/overlay/8aa0d5592f29a7ff8cf76c27f066cee0453018e2d55a9500787606e68ad4eece/merged": invalid argument
# setup(): removing stray image localhost/podman-pause:4.6.1-1691705275
# setup(): removing stray image 2a58668ff46a

This is one of our most popular flakes, and by far the nastiest one. It should pass on rerun, or you can waive it.