u3: fixes bug in +rub jet (unsafe coercion from c3_w to noun)
u3: fixes bug in +rub jet (unsafe coercion from c3_w to noun)

ngzax/urbit,ngzax/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,ngzax/urbit