From 664ae6464687fb99c7dc7313a1970dd938041d94 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Thu, 16 Apr 2026 18:09:57 -0700
Subject: [PATCH] ci(binaries_dev): serialize concurrent runs to prevent asset
 name collisions

Multiple master pushes within the same minute produced identical BUILD_TIME
values, causing concurrent workflow runs to race on identically-named release
assets. Upload retries hit 422 already_exists and failed the build. Adding a
concurrency group with cancel-in-progress ensures only the latest dev build
runs at a time, which is fine since only the latest dev artifacts matter.
---
 .github/workflows/binaries_dev.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/binaries_dev.yml b/.github/workflows/binaries_dev.yml
index df1237395..851f7368a 100644
--- a/.github/workflows/binaries_dev.yml
+++ b/.github/workflows/binaries_dev.yml
@@ -4,6 +4,10 @@ on:
   push:
     branches: [ master ]
 
+concurrency:
+  group: binaries-dev-${{ github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: read