From 1e12538c96efe0a48c30e9b849915e904c6c407a Mon Sep 17 00:00:00 2001
From: Daniil Belov <70999565+BelovDV@users.noreply.github.com>
Date: Fri, 4 Aug 2023 12:36:48 +0300
Subject: [PATCH] pass jobserver on target info acquiring

---
 src/cargo/core/compiler/build_context/target_info.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/cargo/core/compiler/build_context/target_info.rs b/src/cargo/core/compiler/build_context/target_info.rs
index e6e41c5226f..c0e8f395867 100644
--- a/src/cargo/core/compiler/build_context/target_info.rs
+++ b/src/cargo/core/compiler/build_context/target_info.rs
@@ -185,6 +185,12 @@ impl TargetInfo {
                 .args(&rustflags)
                 .env_remove("RUSTC_LOG");
 
+            // Removes `FD_CLOEXEC` set by `jobserver::Client` to pass jobserver
+            // as environment variables specify.
+            if let Some(client) = config.jobserver_from_env() {
+                process.inherit_jobserver(client);
+            }
+
             if let CompileKind::Target(target) = kind {
                 process.arg("--target").arg(target.rustc_target());
             }