From daf53c9a102e695d9ca0c2b48b231e8f2517264b Mon Sep 17 00:00:00 2001
From: zimbatm <zimbatm@zimbatm.com>
Date: Thu, 26 Oct 2017 17:43:17 +0100
Subject: [PATCH] buildRustPackage: allow passthru overrides

Don't ignore the passthru that could be passed to the derivation
---
 pkgs/build-support/rust/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/build-support/rust/default.nix b/pkgs/build-support/rust/default.nix
index 2b32da11d1c..37ea264a53f 100644
--- a/pkgs/build-support/rust/default.nix
+++ b/pkgs/build-support/rust/default.nix
@@ -80,5 +80,5 @@ in stdenv.mkDerivation (args // {
     runHook postInstall
   '';
 
-  passthru = { inherit cargoDeps; };
+  passthru = { inherit cargoDeps; } // (args.passthru or {});
 })