expected

reg054.idr:18:5:When elaborating left hand side of inf:
When elaborating an application of constructor Main.MkInfer:
        Attempting concrete match on polymorphic argument: 0
reg054.idr:34:7:When elaborating left hand side of weird:
When elaborating argument x to Main.weird:
        No explicit types on left hand side: Char
reg054.idr:37:1-8:When elaborating left hand side of tctrick:
When elaborating an application of Main.tctrick:
        Can't unify
                Maybe a1 (Type of Just x)
        with
                a (Expected type)