From 00151b6a6f70723ccce2c0993d24397ef56c15e9 Mon Sep 17 00:00:00 2001
From: Simon Sapin <simon.sapin@exyr.org>
Date: Tue, 12 Nov 2019 14:13:09 +0100
Subject: [PATCH] Fix sccache failure when rustc generates hundreds of
 thousands of warnings

Fixes https://github.com/servo/servo/issues/24714
---
 etc/ci/buildbot_steps.yml        | 4 ++--
 etc/taskcluster/decision_task.py | 4 +++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/etc/ci/buildbot_steps.yml b/etc/ci/buildbot_steps.yml
index ba93b833143..34f54a67f57 100644
--- a/etc/ci/buildbot_steps.yml
+++ b/etc/ci/buildbot_steps.yml
@@ -2,9 +2,9 @@ env:
   RUST_BACKTRACE: '1'
   RUSTFLAGS: -Dwarnings
   CARGO_INCREMENTAL: "0"
-  SCCACHE_IDLE_TIMEOUT: "1200"
   GST_DEBUG: '3'
-
+  SCCACHE_IDLE_TIMEOUT: "1200"
+  SCCACHE_MAX_FRAME_LENGTH": "100000000"  # 100 MB
 linux-rel-nogate:
  env:
    CC: clang-4.0
diff --git a/etc/taskcluster/decision_task.py b/etc/taskcluster/decision_task.py
index b2bb47d32a0..93a508e0c13 100644
--- a/etc/taskcluster/decision_task.py
+++ b/etc/taskcluster/decision_task.py
@@ -131,9 +131,11 @@ linux_build_env = {
     "SHELL": "/bin/dash",  # For SpiderMonkey’s build system
     "CCACHE": "sccache",
     "RUSTC_WRAPPER": "sccache",
-    "SCCACHE_IDLE_TIMEOUT": "1200",
     "CC": "clang",
     "CXX": "clang++",
+    "SCCACHE_IDLE_TIMEOUT": "1200",
+    # https://github.com/servo/servo/issues/24714#issuecomment-552951519
+    "SCCACHE_MAX_FRAME_LENGTH": str(100 * 1024 * 1024),  # 100 MiB
 }
 macos_build_env = {}
 windows_build_env = {