Minecraft not responding

Please attach the complete output of the "Development console" which can be found on the second tab of the launcher.

If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".

The root cause is a corrupt world:

[18:52:52 INFO]: Client> [18:52:52] [Server thread/ERROR]: Wrong location! (-10, 6) should be (-11, 6), vr['Bat'/305, l='ady lp', x=-157.60, y=14.04, z=103.25]
[18:52:52 INFO]: Client> java.lang.Exception: Stack trace
[18:52:52 INFO]: Client> at java.lang.Thread.dumpStack(Unknown Source)
[18:52:52 INFO]: Client> at aqm.a(SourceFile:649)
[18:52:52 INFO]: Client> at ara.a(SourceFile:294)
[18:52:52 INFO]: Client> at ara.a(SourceFile:81)
[18:52:52 INFO]: Client> at ara.a(SourceFile:69)
[18:52:52 INFO]: Client> at nc.f(SourceFile:129)
[18:52:52 INFO]: Client> at nc.c(SourceFile:80)
[18:52:52 INFO]: Client> at net.minecraft.server.MinecraftServer.g(SourceFile:257)
[18:52:52 INFO]: Client> at bvz.a(SourceFile:89)
[18:52:52 INFO]: Client> at bvz.e(SourceFile:105)
[18:52:52 INFO]: Client> at net.minecraft.server.MinecraftServer.run(SourceFile:347)
[18:52:52 INFO]: Client> at lt.run(SourceFile:647)
[18:52:52 INFO]: Client> [18:52:52] [Server thread/ERROR]: Chunk file at -4,17 is in the wrong location; relocating. (Expected -4, 17, got -11, 6)

The the world lags:

[19:17:14 INFO]: Client> [19:17:14] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2077ms behind, skipping 41 tick(s)
[19:19:31 INFO]: Client> [19:19:31] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2366ms behind, skipping 47 tick(s)

then the game runs out of memory (See Exit Code: -805306369 ):

[19:20:38 ERROR]: Game ended with bad state (exit code -805306369)

Was the world already broken with 1.7.4 or did one of the 14w02/03 snapshots cause that ?

It was one of the 14w02/03 snapshots since it never happened in 1.7.4

Can you repeat that by taking the 1.7.4 backup of the world and using a 14w02/03 snapshot ?

I've been using the 1.8 snapshots since they came out for this world so ive not been using 1.7.4 for a while

Nothing we could do here now.
If you have steps to reproduce that, we will reopen this ticket.

would giving the seed and the coords help

seed:25054457194411929
coords: x:-171, y:63, z:99

World is fine (see screenshot), no messages in the console.