Error found:
at tests/purs/failing/Let.purs:6:12 - 6:17 (line 6, column 12 - line 6, column 17)

  The value of x is undefined here, so this reference is not allowed.


See https://github.com/purescript/documentation/blob/master/errors/CycleInDeclaration.md for more information,
or to contribute content related to this error.