From 1a4c10e9500c908b166e2f2ecc46d54b7b2b218a Mon Sep 17 00:00:00 2001
From: Robert Helgesson <robert@rycee.net>
Date: Fri, 6 Mar 2020 00:14:09 +0100
Subject: [PATCH] ci: run tests with `--pure`

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index e0712e1e..3e5e73d0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,4 +10,4 @@ before_script:
 script:
   - ./format -c
   - nix-shell . -A install
-  - nix-shell tests -A run.all
+  - nix-shell --pure tests -A run.all