This problem happened to me in MicroOS, but will likely affect Leap Micro as
well. If this bug is miscategorized, feel free to move it.

Creating a new snapper config on MicroOS to gain automatic snapshots of the
home partition works properly:
```bash
snapper -c home create-config /home
```

But then snapper-timeline.service fails with following error:
```
          systemd[1]: Started Timeline of Snapper Snapshots.
systemd-helper[1765]: running timeline for 'home'.
systemd-helper[1765]: IO Error (mktemp failed).
systemd-helper[1765]: timeline for 'home' failed.
          systemd[1]: snapper-timeline.service: Main process exited,
code=exited, status=1/FAILURE
          systemd[1]: snapper-timeline.service: Failed with result 'exit-code'.
```

Same error appears when taking a snapshot manually.

Snapshots of the root filesystem works as normal.

Maybe it's a problem of SELinux?