[fiddle] Add more logging for setup_backend_objects failures.

Bug: skia:9891
Change-Id: I4d721f8dca8c83b3707719bda613d0306ef49a92
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/269763
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
1 file changed