this derivation will be built:
  /nix/store/ra9kdhdqasiffhv81s5s4bj9zr7iabjx-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/ra9kdhdqasiffhv81s5s4bj9zr7iabjx-bcachefs-module-7.0.0-34-generic.drv'...