1/1: Building Test (Test.idr)
Error: Constructor Main.S doesn't match any pattern for Natural.

Test:6:1--6:23
 2 | data MyNat
 3 |     = S MyNat MyNat
 4 |     | Z
 5 | 
 6 | %builtin Natural MyNat
     ^^^^^^^^^^^^^^^^^^^^^^

Main> Bye for now!