From 8def3d69c724b4313fcfd01534054c043a637047 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Fri, 19 Jun 2015 17:59:43 +0200
Subject: [PATCH] rustc: Install docs in a separator output

This reduces rustc's size from 359 MiB to 186 MiB.

Maybe we should disable doc generation altogether, since it's very
slow and people who need docs will JFGI anyway. But for now I've left
it.
---
 pkgs/development/compilers/rustc/generic.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/compilers/rustc/generic.nix b/pkgs/development/compilers/rustc/generic.nix
index 9c95dbb1003a..d1091643f779 100644
--- a/pkgs/development/compilers/rustc/generic.nix
+++ b/pkgs/development/compilers/rustc/generic.nix
@@ -136,6 +136,8 @@ stdenv.mkDerivation {
 
   enableParallelBuilding = true;
 
+  outputs = [ "out" "doc" ];
+
   preCheck = "export TZDIR=${tzdata}/share/zoneinfo";
 
   doCheck = true;