Don't know if they're weevils, they're tiny brownish beetles (the dark dots you see in the front, for example).
No more pictures because I threw it away before they could spread to all of my kitchen. It looked like they couldn't leave the jar, so hopefully they didn't.
Why did you throw it away? Just move it away from the kitchen and put it somewhere they can live in peace. Not the trash. Rude.
They were probably so proud of their building and were excited to see Soviet notice all of their hard work.