Individual::evaluate_with does not take a mutable function.

[luleyleo]

mahf/src/problems/individual.rs

Lines 79 to 84 in e7a520a

	pub fn evaluate_with<F>(&mut self, objective_fn: F)
	where
	F: Fn(&P::Encoding) -> P::Objective,
	{
	self.objective = Some(objective_fn(&self.solution));
	}

This function should take an FnMut. Otherwise, you can't use it to evaluate problems where the evaluation function mutates the evaluator.

[Saethox]

Resolved with #178.