From fc7d938468dec66e9eae8c5204ff1c2c742a41a8 Mon Sep 17 00:00:00 2001
From: Kegan Dougal <kegan@matrix.org>
Date: Thu, 10 Feb 2022 10:29:05 +0000
Subject: [PATCH] Don't allow parallel complement tests

Fixes flakiness seemingly. See https://github.com/matrix-org/synapse/pull/11910
---
 .github/workflows/tests.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 4a17202954..124940f71a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -63,7 +63,7 @@ jobs:
       # Run Complement
       - run: |
           set -o pipefail &&
-          go test -v -json -tags dendrite_blacklist ./tests/... 2>&1 | gotestfmt
+          go test -v -p 1 -json -tags dendrite_blacklist ./tests/... 2>&1 | gotestfmt
         shell: bash
         name: Run Complement Tests
         env: