Put the summary of the bug you're having here

Minecraft should stream a video to Twitch

Instead, Minecraft crashed.

Steps to Reproduce:
1.Try to build a replica of a house from a graphic novel.
2. Listen to an epic playlist oniTunes
3. Accidentally leave the entire system on while visiting grandparents upwards of two hours.
4. come back home to super-hot computer
5. Tell yourself that it's fine, and play Minecraft anyway
6. Decide to stream a Twitch broadcast for the first time
7. Turn your chunck rendering slider down to its lowest possible setting because of your knowledge of having a not-amazing-but-very-well-functioning computer (and your fear of it overheating)
8. crash Minecraft.