From 6338574bc5c036487486acde264f38f39ea15fad Mon Sep 17 00:00:00 2001
From: En-En <39373446+En-En-Code@users.noreply.github.com>
Date: Sun, 9 Nov 2025 16:11:44 +0000
Subject: [PATCH] tests: preset `RUST_TEST_THREADS` to 1

Since running the tests using all available threads is inconsistent, set
the default number of test threads to be 1. This can be overridden with
another use of the environment variable or with the `--test-threads`
flag. This improves packages which use `cargo test` as part of the build
process with no changes needeed from the packagers' side.

`RUST_TEST_THREADS` is documented as deprecated, but cannot be removed
by Cargo before a way to specify Cargo test flags becomes available.
---
 .cargo/config.toml | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 .cargo/config.toml

diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..8af59dd
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,2 @@
+[env]
+RUST_TEST_THREADS = "1"