I must say I am quite puzzled with the results. Its all working on OnePlus X SFOS 2.1.0.11 - no crashes.
PS: Zeta, sailfish_latest_armv7hl (armv8el) used to be before as well. As far as I understood, its default for the current SFOS target. Or am I wrong?
The OBS provides a number of uniquely named schedulers but these are not named appropriately for Mer and we use armv7el scheduler for armv6l, armv7l builds and armv8el scheduler for armv7hl.