Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: box2d_2 2.4.2 -> 3.1.1 https://github.com/erincatto/box2d/releases
attrpath: box2d_2
Checking auto update branch...
No auto update branch exists
Version in attr path box2d_2 not compatible with 3.1.1