FunErrTest.idr:35:10:
When elaborating right hand side of badCadr1:
When elaborating argument cons1 to function FunErrTest.cadr:
        Could not prove that [] has at least two elements.
FunErrTest.idr:38:10:
When elaborating right hand side of badCadr2:
When elaborating argument cons2 to function FunErrTest.cadr:
        Could not prove that tail [(fromInteger 1)] has at least two
        elements.