From 87d3272940806cdbad166e24cde28040e8395a26 Mon Sep 17 00:00:00 2001
From: kennytm <kennytm@gmail.com>
Date: Tue, 18 Apr 2017 00:07:36 +0800
Subject: [PATCH] Pass `--format-version 1` to `cargo metadata`.

Suppress warning introduced by rust-lang/cargo#3841.
---
 src/bootstrap/metadata.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/bootstrap/metadata.rs b/src/bootstrap/metadata.rs
index 5918fe41e7c8b..7b6b01655df58 100644
--- a/src/bootstrap/metadata.rs
+++ b/src/bootstrap/metadata.rs
@@ -58,6 +58,7 @@ fn build_krate(build: &mut Build, krate: &str) {
     // the dependency graph and what `-p` arguments there are.
     let mut cargo = Command::new(&build.cargo);
     cargo.arg("metadata")
+         .arg("--format-version").arg("1")
          .arg("--manifest-path").arg(build.src.join(krate).join("Cargo.toml"));
     let output = output(&mut cargo);
     let output: Output = json::decode(&output).unwrap();