From 7c62a764b4872d6a1de0bb564d9dd8d9b1a2ac56 Mon Sep 17 00:00:00 2001
From: Silvan Mosberger <silvan.mosberger@tweag.io>
Date: Tue, 11 Feb 2025 21:16:58 +0100
Subject: [PATCH] ci/eval: Fail on non-empty stderr

Just like the channel eval requires.
---
 ci/eval/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ci/eval/default.nix b/ci/eval/default.nix
index fe4a8027383f..377582b96068 100644
--- a/ci/eval/default.nix
+++ b/ci/eval/default.nix
@@ -113,6 +113,9 @@ let
           echo "Evaluation failed with exit code $exitCode"
           # This immediately halts all xargs processes
           kill $PPID
+        elif [[ -s "$outputDir/stderr/$myChunk" ]]; then
+          echo "Nixpkgs on $system evaluated with warnings, aborting"
+          kill $PPID
         fi
       '';
     in