this derivation will be built:
  /nix/store/1vfzd0dz8nb6rfz913v6i020b20zgpb6-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/1vfzd0dz8nb6rfz913v6i020b20zgpb6-bcachefs-module-7.0.0-38-generic.drv'...