Changes to Vinyl have broken compilation

[IQubic]

The Mutable library depends on Vinyl. However, it seems that somewhere along the line, changes to the Vinyl package were made that have broken the Mutable package. I'm not sure what the best way to fix this is, but I will leave this log here (I'm trying to use cabal to build a project of mine that depends on mutable.)

https://gist.github.com/IQubic/233072265c3ee127ff81a027c9b7b4cd

[IQubic]

It would be a good idea to add some version bounds to this Vinyl dependency to prevent this from happening again.

[gilgamec]

I've managed to successfully use mutable in my own projects with the latest vinyl by just adding the single suggested constraint to the ARec instance.

Of course, I don't actually use vinyl in my projects, so I have no idea if it actually works beyond compiling.