Failed to open curl lib from binary, use libcurl.so instead

On Ubuntu Server 20.04, the latest Docker image containing server version 1.16.221.01 crashes after a few minutes of game play with the following log dump:

[INFO] Package: com.mojang.minecraft.dedicatedserver Version: 1.16.221.01 OS: Linux Server start: 2021-05-01 14:42:52 UTC Dmp timestamp: 2021-05-01 14:43:54 UTC Upload Date: 2021-05-01 14:43:54 UTC Session ID: 60f31624-d998-4de2-946c-8e56f72ca000 Commit hash: 29f5ac44317033b48a154d0e9ac51db5ce2d6805 Build id: 5873168 CrashReporter Key: 7ef34716-637f-3b3d-98e2-ef5690af7286

Crash [INFO] at clone (UnknownFile:?) Failed to open curl lib from binary, use libcurl.so instead

Running the exact same server version (manually downloaded from https://www.minecraft.net/en-us/download/server/bedrock/) and installed on a different server running Ubuntu Server 20.04 but NO DOCKER, doesn't crash. According to https://bugs.mojang.com/browse/BDS-12695 perhaps you need to tweak the LD_LIBRARY_PATH setting in the Docker image?

See also https://bugs.mojang.com/browse/BDS-12751, although I think the ipv6 thing is a red herring.

(Judging by the mess that the last few Linux releases of the server software has been -- complier files included in the tarball, server executable not actually marked as executable -- I wouldn't be surprised if they've handed off the Linux port to some overworked unpaid intern in Hyderabad...)