Fix test filter

Author: hamishmack

test/lookup-sha256/default.nix

@@ -1,10 +1,10 @@
-{ pkgs, lib, stdenv, haskell-nix, testSrc, zlib, compiler-nix-name } :
-  lib.addMetaAttrs {
+{ pkgs, lib, stdenv, haskell-nix, testSrc, zlib, compiler-nix-name, recurseIntoAttrs } : recurseIntoAttrs {
+  # The version of pandoc used in this test does not build with ghcjs or ghc 8.10
+  meta.disabled = stdenv.hostPlatform.isGhcjs
+      || builtins.compareVersions pkgs.buildPackages.haskell-nix.compiler.${compiler-nix-name}.version "8.10" >= 0;
+  build = lib.addMetaAttrs {
     # A dependency is broken on windows, just run this on unix.
     platforms = lib.platforms.unix;
-    # The version of pandoc used in this test does not build with ghcjs or ghc 8.10
-    disabled = stdenv.hostPlatform.isGhcjs
-      || builtins.compareVersions pkgs.buildPackages.haskell-nix.compiler.${compiler-nix-name}.version "8.10" >= 0;
   } ((haskell-nix.hackage-package {
     inherit compiler-nix-name;
     name         = "pandoc";
@@ -18,4 +18,5 @@
     cabalProjectLocal = ''
       allow-newer: *:base
     '';
-  }).components.exes.pandoc)
+  }).components.exes.pandoc);
+}