How do I use StructureMap with generic unclosed types using Scan with a "greedy" constructor

Between various Stack Overflow questions and blog posts there is a pretty reasonable amount of documentation on the topic of open generics and StructureMap. Unfortunately, I must be missing something as my attempts at using scan to perform the configuration along with a class implementation that has a "greedy" constructor have yet work.

I want StructureMap to grab an instance of the below class via references to its implemented interface. ToCsvService exists in an unreferenced assembly called Infrastructure. IToCsvService exists in a referenced assembly called Core. As you can see ToCsvService has a "greedy" constructor.

public class ToCsvService<TSource> : IToCsvService<TSource>
{
    public ToCsvService(ICollection<TSource> collection)
    {
    }
}

I let StructureMap know about ToCsvService via the ConnectImplementationsToTypesClosing method.

ObjectFactory.Initialize(cfg =>
{
    cfg.Scan(scan =>
    {
        scan.Assembly("Infrastructure");
        scan.WithDefaultConventions();

        // even with this call StructureMap cannot use ToCsvService
        // instance of IToCsvService (though wouldn't expect it to)
        scan.ConnectImplementationsToTypesClosing
            (typeof(IToCsvService<>));
    });
});

From the ObjectFactory.WhatDoIHave() method it appears that StructureMap is aware of ToCsvService.

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