1/1: Building IfErr (IfErr.idr)
IfErr.idr:15:10--15:30:While processing right hand side of test at IfErr.idr:15:1--17:1:
Can't find an implementation for Eq Foo at:
15	test x = showIfEq MkFoo MkBar
	         ^^^^^^^^^^^^^^^^^^^^

IfErr.idr:23:9--23:29:While processing right hand side of test2 at IfErr.idr:23:1--25:1:
Can't find an implementation for Show Foo at:
23	test2 = showIfEq MkFoo MkBar
	        ^^^^^^^^^^^^^^^^^^^^