From 839c9e9344e8dc9f22f7562c8b0a3cb178eb5048 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Mon, 2 Dec 2019 21:08:16 +0000
Subject: [PATCH] rustPlatform: forward fetchcargo args to stdenv

Most stdenv wrappers already work like this -- it allows greater
customisation.  We just have to be careful to remove arguments we're
using that shouldn't be passed to stdenv.  I've been conservative
here, because fetchcargo checksums shouldn't change lightly.
---
 pkgs/build-support/rust/fetchcargo.nix | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/pkgs/build-support/rust/fetchcargo.nix b/pkgs/build-support/rust/fetchcargo.nix
index a515ce9c6eb5..01e410c8bf8e 100644
--- a/pkgs/build-support/rust/fetchcargo.nix
+++ b/pkgs/build-support/rust/fetchcargo.nix
@@ -26,11 +26,11 @@ in
 , cargoUpdateHook ? ""
 , # whenever to also include the Cargo.lock in the output
   copyLockfile ? false
-}:
-stdenv.mkDerivation {
+, ...
+} @ args:
+stdenv.mkDerivation ({
   name = "${name}-vendor";
   nativeBuildInputs = [ cacert git cargo-vendor-normalise cargo ];
-  inherit src srcs patches sourceRoot;
 
   phases = "unpackPhase patchPhase installPhase";
 
@@ -76,4 +76,6 @@ stdenv.mkDerivation {
 
   impureEnvVars = stdenv.lib.fetchers.proxyImpureEnvVars;
   preferLocalBuild = true;
-}
+} // (builtins.removeAttrs args [
+  "name" "sha256" "cargoUpdateHook" "copyLockfile"
+]))