this derivation will be built:
  /nix/store/ac1mx3grdqhlnflq7sqg5bdm2iglhmmv-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/ac1mx3grdqhlnflq7sqg5bdm2iglhmmv-bcachefs-module-7.0.0-29-generic.drv'...