Xcode 9.3 beta 2のリリースノート

## Resolved in Xcode 9.3 beta 2 – IDE ### Build System - Prevented Spotlight from indexing the module cache folder for builds by renaming the folder to `ModuleCache.noindex` which results in an improvement in overall build performance. (35212165)

これ何だろう？ ~/Library/Developer/Xcode/DerivedData/ModuleCacheはそのまま残ってるけど。 (edited)