this derivation will be built:
  /nix/store/fmmqcj77px8hv5bwjhbkm3n9m4s51qx1-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/fmmqcj77px8hv5bwjhbkm3n9m4s51qx1-bcachefs-module-7.0.0-34-generic.drv'...