Error due to inappropriate usage of a lazy list
class X::Cannot::Lazy is Exception { }
Error thrown (or wrapped in a Failure) when inappropriately using a list that .is-lazy. Such a list can be infinite which would make it impossible to iterate over all values.
method action()
Verbal description of the inappropriate action.
method what()
Returns the type that was the target of the action, if it was not the lazy list itself.