This file is the Game Output for a world called "Test Bug". This world was created for the sole prupose of testing the bug mentioned in this bug report. In the world, a command block, furnace, and chest were placed, and the seed is 2001409191873990343. The world was launched multiple times, but it froze when I clicked "Save and Quit to Title" the last time at 10:58:25. I forcibly closed Minecraft with Task Manager. The Game Output was recieved from the launcher after Minecraft was forcibly closed with Task Manager.

Completely ignored arguments: [--nativeLauncherVersion, 301]
[10:56:03] [Client thread/INFO]: Setting user: Rocketboy314
[10:56:03] [Client thread/INFO]: (Session ID is <censored>)
[10:56:04] [Client thread/INFO]: LWJGL Version: 2.9.4
[10:56:05] [Client thread/INFO]: Reloading ResourceManager: Default
[10:56:06] [Sound Library Loader/INFO]: Starting up SoundSystem...
[10:56:06] [Thread-5/INFO]: Initializing LWJGL OpenAL
[10:56:06] [Thread-5/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[10:56:06] [Thread-5/INFO]: OpenAL initialized.
[10:56:06] [Sound Library Loader/INFO]: Sound engine started
[10:56:07] [Client thread/INFO]: Created: 1024x512 textures-atlas
[10:56:23] [Server thread/INFO]: Starting integrated minecraft server version 1.9
[10:56:23] [Server thread/INFO]: Generating keypair
[10:56:24] [Server thread/INFO]: Preparing start region for level 0
[10:56:25] [Server thread/INFO]: Preparing spawn area: 16%
[10:56:26] [Server thread/INFO]: Preparing spawn area: 91%
[10:56:26] [Server thread/INFO]: Changing view distance to 8, from 10
[10:56:26] [Server thread/INFO]: Rocketboy314[local:E:75550432] logged in with entity id 391 at (242.5, 67.0, 316.5)
[10:56:26] [Server thread/INFO]: Rocketboy314 joined the game
[10:56:27] [Server thread/INFO]: Saving and pausing game...
[10:56:27] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:27] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:27] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:30] [Server thread/INFO]: Saving and pausing game...
[10:56:30] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:30] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:30] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:30] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3964ms behind, skipping 79 tick(s)
[10:56:33] [Client thread/INFO]: Using default channel type
[10:56:33] [Client thread/INFO]: Started on 55975
[10:56:33] [Client thread/INFO]: [CHAT] Local game hosted on port 55975
[10:56:35] [Server thread/INFO]: Rocketboy314 lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[10:56:35] [Server thread/INFO]: Rocketboy314 left the game
[10:56:35] [Server thread/INFO]: Stopping singleplayer server as player logged out
[10:56:35] [Server thread/INFO]: Stopping server
[10:56:35] [Server thread/INFO]: Saving players
[10:56:35] [Server thread/INFO]: Saving worlds
[10:56:35] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:35] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:35] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:37] [Server thread/INFO]: Starting integrated minecraft server version 1.9
[10:56:37] [Server thread/INFO]: Generating keypair
[10:56:37] [Server thread/INFO]: Preparing start region for level 0
[10:56:38] [Server thread/INFO]: Preparing spawn area: 60%
[10:56:39] [Server thread/INFO]: Changing view distance to 8, from 10
[10:56:39] [Server thread/INFO]: Rocketboy314[local:E:59ecf4c1] logged in with entity id 908 at (242.5, 67.0, 316.5)
[10:56:39] [Server thread/INFO]: Rocketboy314 joined the game
[10:56:39] [Server thread/INFO]: Saving and pausing game...
[10:56:39] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:40] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:40] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:40] [Server thread/INFO]: Saving and pausing game...
[10:56:40] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:41] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:41] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:42] [Server thread/INFO]: Saving and pausing game...
[10:56:42] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:43] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:43] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:45] [Client thread/INFO]: Using default channel type
[10:56:45] [Client thread/INFO]: Started on 55995
[10:56:45] [Client thread/INFO]: [CHAT] Local game hosted on port 55995
[10:56:46] [Server thread/INFO]: Rocketboy314 lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[10:56:46] [Server thread/INFO]: Rocketboy314 left the game
[10:56:46] [Server thread/INFO]: Stopping singleplayer server as player logged out
[10:56:46] [Server thread/INFO]: Stopping server
[10:56:46] [Server thread/INFO]: Saving players
[10:56:46] [Server thread/INFO]: Saving worlds
[10:56:46] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:46] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:46] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:48] [Server thread/INFO]: Starting integrated minecraft server version 1.9
[10:56:48] [Server thread/INFO]: Generating keypair
[10:56:48] [Server thread/INFO]: Preparing start region for level 0
[10:56:49] [Server thread/INFO]: Preparing spawn area: 92%
[10:56:49] [Server thread/INFO]: Changing view distance to 8, from 10
[10:56:50] [Server thread/INFO]: Rocketboy314[local:E:7d111058] logged in with entity id 1434 at (242.5, 67.0, 316.5)
[10:56:50] [Server thread/INFO]: Rocketboy314 joined the game
[10:56:51] [Server thread/INFO]: Saving and pausing game...
[10:56:51] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:51] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:51] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:54] [Client thread/INFO]: Using default channel type
[10:56:54] [Client thread/INFO]: Started on 56004
[10:56:54] [Client thread/INFO]: [CHAT] Local game hosted on port 56004
[10:56:57] [Server thread/INFO]: Rocketboy314 lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[10:56:57] [Server thread/INFO]: Rocketboy314 left the game
[10:56:57] [Server thread/INFO]: Stopping singleplayer server as player logged out
[10:56:57] [Server thread/INFO]: Stopping server
[10:56:57] [Server thread/INFO]: Saving players
[10:56:57] [Server thread/INFO]: Saving worlds
[10:56:57] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:56:57] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:56:57] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:56:59] [Server thread/INFO]: Starting integrated minecraft server version 1.9
[10:56:59] [Server thread/INFO]: Generating keypair
[10:56:59] [Server thread/INFO]: Preparing start region for level 0
[10:57:00] [Server thread/INFO]: Changing view distance to 8, from 10
[10:57:01] [Server thread/INFO]: Rocketboy314[local:E:40f83900] logged in with entity id 1952 at (242.5, 67.0, 316.5)
[10:57:01] [Server thread/INFO]: Rocketboy314 joined the game
[10:57:01] [Server thread/INFO]: Saving and pausing game...
[10:57:01] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:57:01] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:57:01] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:57:01] [Server thread/INFO]: Saving and pausing game...
[10:57:01] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:57:02] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:57:02] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:57:07] [Client thread/INFO]: Using default channel type
[10:57:07] [Client thread/INFO]: Started on 56008
[10:57:07] [Client thread/INFO]: [CHAT] Local game hosted on port 56008
[10:58:18] [Server thread/INFO]: Rocketboy314 lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[10:58:18] [Server thread/INFO]: Rocketboy314 left the game
[10:58:18] [Server thread/INFO]: Stopping singleplayer server as player logged out
[10:58:18] [Server thread/INFO]: Stopping server
[10:58:18] [Server thread/INFO]: Saving players
[10:58:18] [Server thread/INFO]: Saving worlds
[10:58:18] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:58:18] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:58:18] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:58:20] [Server thread/INFO]: Starting integrated minecraft server version 1.9
[10:58:20] [Server thread/INFO]: Generating keypair
[10:58:20] [Server thread/INFO]: Preparing start region for level 0
[10:58:21] [Server thread/INFO]: Preparing spawn area: 85%
[10:58:21] [Server thread/INFO]: Changing view distance to 8, from 10
[10:58:21] [Server thread/INFO]: Rocketboy314[local:E:11630fcb] logged in with entity id 2945 at (242.69999998807907, 68.74293160172489, 319.03236483421597)
[10:58:21] [Server thread/INFO]: Rocketboy314 joined the game
[10:58:22] [Server thread/INFO]: Saving and pausing game...
[10:58:22] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:58:22] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:58:22] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:58:22] [Server thread/INFO]: Saving and pausing game...
[10:58:22] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:58:23] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:58:23] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End
[10:58:24] [Client thread/INFO]: Using default channel type
[10:58:24] [Client thread/INFO]: Started on 56087
[10:58:24] [Client thread/INFO]: [CHAT] Local game hosted on port 56087
[10:58:25] [Server thread/INFO]: Rocketboy314 lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[10:58:25] [Server thread/INFO]: Rocketboy314 left the game
[10:58:25] [Server thread/INFO]: Stopping singleplayer server as player logged out
[10:58:25] [Server thread/INFO]: Stopping server
[10:58:25] [Server thread/INFO]: Saving players
[10:58:25] [Server thread/INFO]: Saving worlds
[10:58:25] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Overworld
[10:58:25] [Server thread/INFO]: Saving chunks for level 'Test Bug'/Nether
[10:58:25] [Server thread/INFO]: Saving chunks for level 'Test Bug'/The End