Running nixpkgs-update (https://github.com/NixOS/infra/blob/main/non-critical-infra/modules/nixpkgs-update/README.md) with UPDATE_INFO: fourmolu 0.19.0.1 -> 0.21.0.0 https://repology.org/project/fourmolu/versions
attrpath: fourmolu
Checking auto update branch...
No auto update branch exists
Derivation file says not to edit it