I'm filing this mostly as documentation in case anyone else has the same problem and comes looking.

Updating from 1.1.3 to 1.1.4 updates the Guava version to 32.0.0.

This triggers this Guava bug on Windows (google/guava#6535).

This has been fixed in https://github.com/google/guava/releases/tag/v32.0.1, so a new Truth release that migrates to that should fix the problem.