After compiling my own jar from build 2625a29, and testing it on my client with no issues, I uploaded it to my server and attempted to start. The server will proceed to generate the spawn area and then immediately crash with the following error log: https://pastebin.com/fa469HHn and any future attempts to start the server produces the same error as soon as the world is loaded. I've wiped the world directory several times to ensure it wasn't just a one time thing.

Tested on Forge 2584 and 2589.