While assembling a carbon bike, I found this void in its seat tube. It's about 1/2 inch X 1/4 inch in size and I'm guessing almost a third to half the depth of the tube wall.
Since it's right next to the clamp, it looks like a catastrophic failure waiting to happen. What would be your opinion about this? Would this bike be safe to ride? Is there anything that can be done to repair it?