Frequent crashes in glooptest

[cheapie]

I would report these to the issue tracker for glooptest, but minetest-mods has it disabled in their fork. I did report it upstream of there (GloopMaster/glooptest) but that repository has been abandoned since 2015.

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I've been seeing frequent crashes in othergen_module/init.lua in glooptest, with messages such as:

2025-01-31 00:03:00: ERROR[Main]: ServerError: AsyncErr: Lua: Runtime error from mod 'glooptest' in callback environment_OnGenerated(): ...reambuilder_game/mods/glooptest/othergen_module/init.lua:350: attempt to index a nil value
2025-01-31 00:03:00: ERROR[Main]: stack traceback:
2025-01-31 00:03:00: ERROR[Main]: 	...reambuilder_game/mods/glooptest/othergen_module/init.lua:350: in function 'func'
2025-01-31 00:03:00: ERROR[Main]: 	/home/noah/mt/bin/../builtin/profiler/instrumentation.lua:124: in function </home/noah/mt/bin/../builtin/profiler/instrumentation.lua:117>
2025-01-31 00:03:00: ERROR[Main]: 	/home/noah/mt/bin/../builtin/common/register.lua:26: in function </home/noah/mt/bin/../builtin/common/register.lua:12>

See GloopMaster/glooptest#7 for the full report.