From e7026247200edf1b2ec6c06128914354a33dac39 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Sat, 4 Jun 2022 10:32:02 +0800
Subject: [PATCH] flake: do not use __impure (breaks hydra)

---
 flake.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index 3da033d47..1ab9d10af 100644
--- a/flake.nix
+++ b/flake.nix
@@ -449,7 +449,8 @@
           name = "kc705-hitl";
 
           __networked = true;  # compatibility with old patched Nix
-          __impure = true;     # Nix 2.8+
+          # breaks hydra, https://github.com/NixOS/hydra/issues/1216
+          #__impure = true;     # Nix 2.8+
 
           buildInputs = [
             (pkgs.python3.withPackages(ps: with packages.x86_64-linux; [ artiq ps.paramiko ]))