Moving Chunks

Please attach the logfile from [minecraft/logs/log-<DATE>.gz|http://hopper.minecraft.net/help/finding-minecraft-data-folder] from the time of happening.

[12:22:48] [Sound Library Loader/INFO]: Sound engine started
[12:22:57] [Client thread/INFO]: Created: 512x512 textures-atlas
[12:23:08] [Client thread/ERROR]: Exception reading C:\Users\Hunter\AppData\Roaming\.minecraft\saves\RUST\level.dat
java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91) ~[?:1.8.0_25]
	at dx.a(SourceFile:13) ~[1.8.7.jar:?]
	at atn.c(SourceFile:62) [1.8.7.jar:?]
	at atk.b(SourceFile:52) [1.8.7.jar:?]
	at axv.f(SourceFile:87) [1.8.7.jar:?]
	at axv.b(SourceFile:59) [1.8.7.jar:?]
	at axu.a(SourceFile:376) [1.8.7.jar:?]
	at ave.a(SourceFile:818) [1.8.7.jar:?]
	at aya.a(SourceFile:215) [1.8.7.jar:?]
	at axu.a(SourceFile:350) [1.8.7.jar:?]
	at aya.a(SourceFile:468) [1.8.7.jar:?]
	at axu.k(SourceFile:413) [1.8.7.jar:?]
	at axu.p(SourceFile:390) [1.8.7.jar:?]
	at ave.s(SourceFile:1497) [1.8.7.jar:?]
	at ave.av(SourceFile:888) [1.8.7.jar:?]
	at ave.a(SourceFile:325) [1.8.7.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.7.jar:?]
[12:23:11] [Server thread/INFO]: Starting integrated minecraft server version 1.8.7
[12:23:11] [Server thread/INFO]: Generating keypair
[12:23:11] [Server thread/ERROR]: Exception reading C:\Users\Hunter\AppData\Roaming\.minecraft\saves\RUST\level.dat
java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91) ~[?:1.8.0_25]
	at dx.a(SourceFile:13) ~[1.8.7.jar:?]
	at atn.c(SourceFile:62) [1.8.7.jar:?]
	at atk.b(SourceFile:94) [1.8.7.jar:?]
	at net.minecraft.server.MinecraftServer.a(SourceFile:183) [1.8.7.jar:?]
	at bpo.a(SourceFile:68) [1.8.7.jar:?]
	at bpo.i(SourceFile:128) [1.8.7.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:421) [1.8.7.jar:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[12:23:11] [Server thread/INFO]: Preparing start region for level 0
[12:23:12] [Server thread/INFO]: Preparing spawn area: 86%
[12:23:12] [Server thread/INFO]: Changing view distance to 12, from 10
[12:23:13] [Server thread/INFO]: Hglittle[local:E:1b041cdf] logged in with entity id 293 at (-881.0876917561102, 79.0, -826.5381064537586)
[12:23:13] [Server thread/INFO]: Hglittle joined the game
[12:23:14] [Server thread/ERROR]: Chunk file at -59,-56 is in the wrong location; relocating. (Expected -59, -56, got -56, -50)
[12:23:14] [Server thread/ERROR]: Chunk file at -55,-51 is in the wrong location; relocating. (Expected -55, -51, got -51, -55)
[12:23:14] [Server thread/WARN]: Wrong location! (-51, -55) should be (-55, -51), tk['Bat'/435, l='RUST', x=-805.87, y=24.02, z=-867.45]
[12:23:14] [Server thread/ERROR]: Chunk file at -53,-58 is in the wrong location; relocating. (Expected -53, -58, got -55, -51)
[12:23:14] [Server thread/ERROR]: Chunk file at -51,-55 is in the wrong location; relocating. (Expected -51, -55, got -55, -52)
[12:23:14] [Server thread/WARN]: Fetching addPacket for removed entity

Game data got damaged somehow. Nothing we can do here.