From 9540739d89ed47b319808535432e9259c9069e71 Mon Sep 17 00:00:00 2001
From: Ferdinand Schober <ferdinand.schober@fau.de>
Date: Wed, 25 Mar 2026 12:44:59 +0100
Subject: [PATCH] add cancel in progress for CI

---
 .github/workflows/cachix.yml | 4 ++++
 .github/workflows/rust.yml   | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/.github/workflows/cachix.yml b/.github/workflows/cachix.yml
index 494c803..521f390 100644
--- a/.github/workflows/cachix.yml
+++ b/.github/workflows/cachix.yml
@@ -7,6 +7,10 @@ on:
     branches: ["main"]
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   nix:
     strategy:
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index ecef06e..d7bfc57 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -9,6 +9,10 @@ on:
 env:
   CARGO_TERM_COLOR: always
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   fmt:
     name: Formatting