this derivation will be built:
  /nix/store/kfmd9fpvjha2fn6ysgf52yv6ivzgxjim-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/kfmd9fpvjha2fn6ysgf52yv6ivzgxjim-bcachefs-module-7.0.0-39-generic.drv'...