this derivation will be built:
  /nix/store/fw215a4x1l0bf993bvw0wqq9fqlqjh6b-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/fw215a4x1l0bf993bvw0wqq9fqlqjh6b-bcachefs-module-7.0.0-38-generic.drv'...