rustup: disable parallel testing

Caused issues in: - download::tests::reqwest::socks_proxy_request - download::tests::curl::callback_gets_all_data_as_if_the_download_happened_all_at_once - download::tests::reqwest::callback_gets_all_data_as_if_the_download_happened_all_at_once
2025-05-22 08:18:34 +02:00
parent 1744aeacbb
commit 3533884ef2
1 changed files with 4 additions and 0 deletions
@@ -79,6 +79,10 @@ rustPlatform.buildRustPackage (finalAttrs: {
  # Random tests fail nondeterministically on macOS.
  # TODO: Investigate this.
  doCheck = !stdenv.hostPlatform.isDarwin;
+  # Random failures when running tests in parallel.
+  preCheck = ''
+    export NIX_BUILD_CORES=1
+  '';

  # skip failing tests
  checkFlags = [