this derivation will be built:
  /nix/store/lb1r6k1rg4n1bjm35rpw29m05l0y1clj-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/lb1r6k1rg4n1bjm35rpw29m05l0y1clj-bcachefs-module-7.0.0-29-generic.drv'...