In window 1:
$ sudo bash -c 'while :;do bin/podman system df --format "{{\"\"}}" || break;done';beep
In window 2:
$ while :;do hack/bats --root 252:rootfs || break;done
Doesn't take too long for window 1 to fail:
Error: failed to get read/write size of container xxx: readdirent /proc/1347012/net: invalid argument
Also seen:
Error: failed to get read/write size of container xxx: lstat /proc/2688266/fd/5: no such file or directory
Found in parallel testing. It should be possible to minimize the reproducer if necessary.