this derivation will be built:
  /nix/store/mw4z7720c8d6xf4zg39cj1n53648zq4m-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/mw4z7720c8d6xf4zg39cj1n53648zq4m-bcachefs-module-7.0.0-38-generic.drv'...