this derivation will be built:
  /nix/store/yc201pliqwfbx20cms8j4srph5w9wy4y-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/yc201pliqwfbx20cms8j4srph5w9wy4y-bcachefs-module-7.0.0-29-generic.drv'...