Vulkan Segfaults on vkCmdCopyBuffer without any debugging info

I tried posting this on /r/vulkan but nobody has responded, I guess I will try here too

I have standard validation layers but when my program segfaults at vkCmdCopyBuffer no relevant crashing information appears. The last thing that prints is this:
VK Command Buffer (CB) binding list of size 0 elements
Here is my CPU backtrace: