Segmentation fault while flashing superuser.zip on Samsung GT-I9195I

[onny]

Hey,
thanks for this nice open source SU/rooting alternative 👍
I have a Samsung GT-I9195I with Lineage 14.1 (Android 7.1.1, https://forum.xda-developers.com/galaxy-s4-mini/orig-development/rom-cyanogenmod-14-1-t3522169) and TWRP 3.1.
Installation of superuser-r310-beta.zip failed for me with following error in the recovery.log file:

+ homedir=/tmp/superuser/scripts/su
+ mktemp -d
+ bootimg_extract=/tmp/tmp.K8Rt3N
+ cd /tmp/tmp.K8Rt3N
+ /tmp/superuser/scripts/bin/bootimg-extract /dev/block/mmcblk0p16
+ [ -f chromeos ]
+ mktemp -d
+ d2=/tmp/tmp.RToMQR
+ cd /tmp/tmp.RToMQR
+ [ -f /tmp/tmp.K8Rt3N/ramdisk.gz ]
+ gunzip -c
+ cpio -i
Segmentation fault
gunzip: write error code 32
gunzip: abort: write error on <stdout>
+ cleanup
+ rm -Rf /tmp/tmp.K8Rt3N /tmp/tmp.RToMQR
Updater process ended with ERROR: 139

full log: https://git.project-insanity.org/snippets/40