From f4fe8085f827d0d8be25713b72bea90b31db1894 Mon Sep 17 00:00:00 2001
From: Michael Woerister <michaelwoerister@posteo>
Date: Fri, 25 Jan 2019 11:23:08 +0100
Subject: [PATCH] bootstrap: Don't rely on any default settings regarding incr.
 comp. in Cargo.

---
 src/bootstrap/builder.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
index c3dc9458839e4..a69ba207495ae 100644
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -991,6 +991,9 @@ impl<'a> Builder<'a> {
 
         if self.config.incremental {
             cargo.env("CARGO_INCREMENTAL", "1");
+        } else {
+            // Don't rely on any default setting for incr. comp. in Cargo
+            cargo.env("CARGO_INCREMENTAL", "0");
         }
 
         if let Some(ref on_fail) = self.config.on_fail {