error: attribute 'maintainers' missing
       at /nix/store/fi9bwcdaij7a8k1x91xzwzp228cah7iw-source/packages/pool/package.nix:73:21
       … while calling the '__deepSeq' builtin at /nix/store/fi9bwcdaij7a8k1x91xzwzp228cah7iw-source/checks/meta-maintainers.nix:25:17
       … while calling anonymous lambda at /nix/store/fi9bwcdaij7a8k1x91xzwzp228cah7iw-source/checks/meta-maintainers.nix:25:12
       …  at /nix/store/fi9bwcdaij7a8k1x91xzwzp228cah7iw-source/checks/meta-maintainers.nix:31:13
       … while evaluating attribute 'forced' of derivation 'meta-maintainers-check' at /nix/store/fi9bwcdaij7a8k1x91xzwzp228cah7iw-source/checks/meta-maintainers.nix:31:13
       … while evaluating derivation 'meta-maintainers-check'
  whose name attribute is located at /nix/store/cdqajhw7dpw5ddff4g8mxf1i69v0g93d-source/pkgs/stdenv/generic/make-derivation.nix:651:11
       … while calling the 'derivationStrict' builtin at «derivation-internal»:36:12
       … while evaluating the attribute 'drvPath' at «derivation-internal»:50:7