What happened to manna some Israelites kept until morning against Moses' orders?

Answer: It bred worms and stank

Some left manna until morning, and it became infested with maggots and began to smell, so Moses was angry.

“But they did not listen to Moses; some people left part of it until morning, and it became infested with maggots and began to smell. So Moses was angry with them.”— Exodus 16:20 (BSB)