this derivation will be built:
  /nix/store/r6hca7sd1rpdx0wzsj5phfadk0fvm9i1-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/r6hca7sd1rpdx0wzsj5phfadk0fvm9i1-bcachefs-module-7.0.0-38-generic.drv'...