this derivation will be built:
  /nix/store/nv843vl6bma436q7hq3z2ahz9mkn1qhv-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/nv843vl6bma436q7hq3z2ahz9mkn1qhv-bcachefs-module-7.0.0-39-generic.drv'...