2 hydra-unstable = super.hydra-unstable.overrideAttrs (oldAttrs: rec {
3 patches = (oldAttrs.patches or [ ]) ++ map super.fetchpatch [
5 meta.description = "Fix unhelpful error messages in aggregate jobs.";
6 url = "https://github.com/NixOS/hydra/pull/825.diff";
7 sha256 = "sha256-L8SWhPHOxuzYpeeu6WuxXKsWo6e687IYIrxzwMJQses";