server crash walking through village at nighttime

i got a server crash, while walking through a village at nighttime. Crashed twice in a row, so I waited a minute then walked slower through the village and it didn't happen again.

com.mojang.minecraft.dedicatedserver

Version: 1.16.20.3

OS: Linux

Server start: 2020-08-26 02:13:52 UTC

Dmp timestamp: 2020-08-26 02:51:32 UTC

Upload Date: 2020-08-26 02:51:32 UTC

Session ID: 6dc2bc28-7d2a-4290-8e7d-9c20d2246472

Commit hash:

Build id: development

CrashReporter Key: 8c4937c1-64cb-3532-a8dc-1deb28f67293

Crash

[2020-08-26 02:51:32 INFO] at std::_shared_count<[__gnu_cxx::_Lock_policy]2>::shared_count[std::_weak_count<[__gnu_cxx::_Lock_policy]2> const&, std::nothrow_t] (UnknownFile:?)

at std::_shared_ptr<POIInstance, [__gnu_cxx::_Lock_policy]2>::shared_ptr[std::_weak_ptr<POIInstance, [__gnu_cxx::_Lock_policy]2> const&, std::nothrow_t] (UnknownFile:?)

at std::shared_ptr<POIInstance>::shared_ptr[std::weak_ptr<POIInstance> const&, std::nothrow_t] (UnknownFile:?)

at std::weak_ptr<POIInstance>::lock[] const (UnknownFile:?)

at Village::getBedPOICount[] const (UnknownFile:?)

at Village::tick[Tick, BlockSource&] (UnknownFile:?)

at VillageManager::tickVillages[Tick const&, Vec3 const&, BlockSource&] (UnknownFile:?)

at ServerPlayer::tickWorld[Tick const&] (UnknownFile:?)

at std::function<bool [Player&]>::operator[][Player&] const (UnknownFile:?)

at Level::forEachPlayer[std::function<bool [Player&]>] (UnknownFile:?)

at Level::tick[] (UnknownFile:?)

at ServerLevel::tick[] (UnknownFile:?)

at GameSession::tick[] (UnknownFile:?)

at Minecraft::tickSimtime[int, int] (UnknownFile:?)

at Minecraft::update[] (UnknownFile:?)

at ServerInstance::_update[] (UnknownFile:?)

at clone (UnknownFile:?)

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