this derivation will be built:
  /nix/store/nkygyp22b4nla464ngg03py1sq5gzjni-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/nkygyp22b4nla464ngg03py1sq5gzjni-bcachefs-module-7.0.0-31-generic.drv'...