From eb1f1a347d01794b8d0c7e38a1d99f9665310f6e Mon Sep 17 00:00:00 2001
From: Eric Seppanen <eric@zenith.tech>
Date: Wed, 19 May 2021 18:29:40 -0700
Subject: [PATCH] rust builds: disable incremental builds

For a CI build, storing incremental build data just makes the cache
bigger, for minimal gain.

Also, for Rust < 1.52.1 there are incremental compilation bugs. CircleCI
is currently building on 1.51.

This only affects the debug build; incremental compilation isn't used on
the release build.
---
 .circleci/config.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4c504cda0f..3ba48a7fc4 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -100,6 +100,7 @@ jobs:
       - run:
           name: Rust build << parameters.build_type >>
           command: |
+            export CARGO_INCREMENTAL=0
             BUILD_TYPE="<< parameters.build_type >>"
             if [[ $BUILD_TYPE == "debug" ]]; then
               echo "Build in debug mode"
@@ -128,6 +129,7 @@ jobs:
       - run:
           name: cargo install
           command: |
+            export CARGO_INCREMENTAL=0
             BUILD_TYPE="<< parameters.build_type >>"
             if [[ $BUILD_TYPE == "debug" ]]; then
               echo "Install debug mode"