You didn't mention if she has a nest box or made a nest? Did she pull fur?
I don't know what sort of property you live on but if its a farm sometimes when people find mutilated babies it can be a rat, or cat reaching through the bars so just be aware of that, and if you think there is a rat you will have to deal with that issue. Mothers also sometimes eat babies because they died in the nest and its there way of keeping things clean. But there is also a chance she has gotten too stressed because of dogs or other predators and is confused and has killed her babies.
In the wild, rabbits give birth and leave the nest to and hide somewhere so that predators won't smell them. I would give her a safe secure box or something to hide in that sits away from her nest, or even cover one end of the hutch, whatever you think will make her feel more secure, if she feels secure she probably will stop eating kits. Her milk may not come in for 24 hours after giving birth. So, its normal for a doe to not feed her kits until 24 hours after giving birth. After their milk comes in does feel very uncomfortable and get a greater instinct to go back to the nest and feed. Rabbits don't sit with the babies or snuggle with them. They feed the babies for 2 to 4 minutes a day and then they run off and hide away from the nest, so as not to attract predators. So if she doesn't sit near her babies its normal, she is not abandoning them. So try to give her a secure place to hide. Hopefully she will calm down and feed her kits like normal.
Also, make sure they babies have a secure nest box with sides on it so they can't crawl out and freeze. Nest box Sides around 7 inches with hay and fur.
Then wait 14 hours or so and check and see if she has fed them. Here's how to check if they have been fed.
http://rabbittalk.com/fed-vs-unfed-kit-pictures-t3052.html
After you've given her a chance to calm down and feed on her own,
if she still isn't feeding the babies or you feel you can't leave her with the babies because she is truly attacking them, then you could take the whole nest box with babies into your house, and try to feed them twice a day by flipping the doe on her back on your lap and putting one baby at a time on her belly to feed-- this does not always work well though and babies can go flying, (best to it while sitting on the floor). Here's a flipping the doe video. [ame]https://www.youtube.com/watch?v=3AkH9M3RmvM[/ame]
If flipping the doe doesn't work --- Here's a good video on hand feeding. [ame]https://www.youtube.com/watch?v=jtdQx6SCGIc[/ame]