swift_initClassMetadataImpl EXC_BAD_ACCESS with Xcode 11.2.1

I recently updated to the Xcode 11 beta, and my code seems to crash at a Swift runtime function swift_initClassMetadataImpl with an EXC_BAD_ACCESS error.

Is there a temporary workaround for this?

Edit: This issue is still present on Xcode 11.2.1 GM.