NIX: Avoid a spurious failure when all tests pass.

diff --git a/nix/default.nix b/nix/default.nix
index 445b0a7f817201f8b004051ba1e0bf1113b10e7c..734fb3bb320b3b3dad36540ddb13bdeb1cfcb92e 100644 (file)
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -22,7 +22,7 @@ let
          cp $i/test-results'/'*.txt $out/test-results/ || true
        done
        mkdir -p $out/nix-support
-       grep '\<failed\>' $out/test-results/list && touch $out/nix-support/failed
+       grep '\<failed\>' $out/test-results/list && touch $out/nix-support/failed || true
      '';
 
      buildInputs = map (x: runTest (args // { flavour = x; }))