---- Minecraft Crash Report ----
// Shall we play a game?

Time: 12/2/19 10:16 PM
Description: Server dump

java.lang.Exception: dummy
	at net.minecraft.server.MinecraftServer.c(SourceFile:1661)
	at net.minecraft.server.MinecraftServer.a(SourceFile:1646)
	at to.c(SourceFile:92)
	at to.a(SourceFile:45)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:262)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:176)
	at cr.a(SourceFile:235)
	at xv.c(SourceFile:1078)
	at xv.a(SourceFile:1065)
	at pp.a(SourceFile:36)
	at pp.a(SourceFile:9)
	at lv.a(SourceFile:21)
	at tb.run(SourceFile:18)
	at aip.h(SourceFile:144)
	at ait.h(SourceFile:23)
	at aip.v(SourceFile:118)
	at net.minecraft.server.MinecraftServer.aZ(SourceFile:724)
	at net.minecraft.server.MinecraftServer.v(SourceFile:718)
	at aip.bj(SourceFile:103)
	at net.minecraft.server.MinecraftServer.u(SourceFile:702)
	at net.minecraft.server.MinecraftServer.run(SourceFile:658)
	at java.lang.Thread.run(Thread.java:748)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.15 Pre-release 3
	Minecraft Version ID: 1.15-pre3
	Operating System: Linux (amd64) version 4.9.0-9-amd64
	Java Version: 1.8.0_211, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 3420480040 bytes (3262 MB) / 4784128000 bytes (4562 MB) up to 9544663040 bytes (9102 MB)
	CPUs: 12
	JVM Flags: 4 total; -Xmx10240M -Xms1024M -XX:ParallelGCThreads=2 -XX:ThreadStackSize=512
	Player Count: 2 / 100; [xe['SirKillian'/155, l='world', x=793.68, y=75.00, z=1031.49], xe['stifflered'/140, l='world', x=2109.70, y=64.00, z=4759.43]]
	Data Packs: vanilla, file/TPS_tracker (incompatible)
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)