this derivation will be built:
  /nix/store/xmzzb1mdl6f133a9pqzn4akz1g84vykm-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/xmzzb1mdl6f133a9pqzn4akz1g84vykm-bcachefs-module-7.0.0-39-generic.drv'...