From 8a286df93563dcd463784955af4b18c519511a1e Mon Sep 17 00:00:00 2001
From: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
Date: Fri, 6 Jan 2017 16:28:53 +0300
Subject: [PATCH] Do not treat `warning` and `rerun-if-changed` as user-defined
 metadata in build script overrides

---
 src/cargo/ops/cargo_compile.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cargo/ops/cargo_compile.rs b/src/cargo/ops/cargo_compile.rs
index 9e8de638d..8616774e0 100644
--- a/src/cargo/ops/cargo_compile.rs
+++ b/src/cargo/ops/cargo_compile.rs
@@ -505,6 +505,9 @@ fn scrape_target_config(config: &Config, triple: &str)
                     let list = value.list(&k)?;
                     output.cfgs.extend(list.iter().map(|v| v.0.clone()));
                 }
+                "warning" | "rerun-if-changed" => {
+                    bail!("`{}` is not supported in build script overrides", k);
+                }
                 _ => {
                     let val = value.string(&k)?.0;
                     output.metadata.push((k.clone(), val.to_string()));
-- 
2.30.2