Minecraft 1.12 crashes at start
This is known to be a problem with your computer. – Update your graphics card drivers. (Do not rely on automatic updates) – If you are using Java arguments to increase the amount of memory, please reduce it to the default 512MB. – If that did not help, please use the community support link below.
From a similar crash report from Mojang bug report.
https://bugs.mojang.com/browse/MCL-7638?attachmentViewMode=list