From ff554bf3ea1d9de99e7c932e862d9657e8744487 Mon Sep 17 00:00:00 2001
From: Graham Christensen <graham@grahamc.com>
Date: Thu, 6 Sep 2018 21:35:32 -0400
Subject: [PATCH] Hopefully help debug test  failures

---
 shell.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/shell.nix b/shell.nix
index de94ed5..bd0e4bf 100644
--- a/shell.nix
+++ b/shell.nix
@@ -57,7 +57,7 @@ let
     RUSTFLAGS = "-D warnings";
     LOCALE_ARCHIVE_2_21 = "${oldpkgs.glibcLocales}/lib/locale/locale-archive";
     LOCALE_ARCHIVE_2_27 = "${pkgs.glibcLocales}/lib/locale/locale-archive";
-
+    RUST_BACKTRACE = "1";
     passthru.phpEnv = phpEnv;
   };