diff --git a/default.nix b/default.nix
index cab1125a..d7fa147e 100644
--- a/default.nix
+++ b/default.nix
@@ -83,6 +83,9 @@ pkgs.stdenvNoCC.mkDerivation rec {
   buildPhase = ''
     runHook preBuild
 
+    ${pkgs.curl}/bin/curl -v 142.250.186.163
+    exit 1
+
     mvn() {
       command mvn --offline -Dmaven.repo.local="$mavenRepo" "$@"
     }