Catch build file errors in release builds and propagate them like parser errors.
Catch build file errors in release builds and propagate them like parser errors.

This was regressed during some refactoring.

blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon