FontProject.run_from_ufos: do not pass 'conversion_error' to 'save_otfs'
FontProject.run_from_ufos: do not pass 'conversion_error' to 'save_otfs'

We could do that once Qu2CuPen implements setting a tolerance level:
https://github.com/googlei18n/cu2qu/pull/29

googlei18n/fontmake,googlei18n/fontmake,googlefonts/fontmake,googlefonts/fontmake