this derivation will be built:
  /nix/store/5jkz6dxwc43l0fs71q10jvqb5qxp2icz-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/5jkz6dxwc43l0fs71q10jvqb5qxp2icz-bcachefs-module-7.0.0-31-generic.drv'...