My game's crashed a few of times over the weekend with no messages. I updated the beta and have crashed twice, receiving the same warning. The only similar actions I could recall before crashing is making caviar and a top hat to boost sanity after a croc attack, so I went in for a third time and it definitely crashed as soon as I made a top hat.
Steps to Reproduce
crafting top hat and caviar to boost sanity
This issue has been fixed in either a future version or updated in a previous version.