Remove sccache from Rust install (#3728)

a200cca0 · Nick Hynes · Tianqi Chen · d14ca52e · a200cca0 · a200cca0
Commit a200cca0 authored Aug 07, 2019 by Nick Hynes Committed by Tianqi Chen Aug 07, 2019
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docker/Dockerfile.ci_cpu
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docker/install/ubuntu_install_rust.sh
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--- a/docker/Dockerfile.ci_cpu
+++ b/docker/Dockerfile.ci_cpu
@@ -43,7 +43,6 @@ COPY install/ubuntu_install_rust.sh /install/ubuntu_install_rust.sh
 RUN bash /install/ubuntu_install_rust.sh
 ENV RUSTUP_HOME /opt/rust
 ENV CARGO_HOME /opt/rust
-ENV RUSTC_WRAPPER sccache

 # AutoTVM deps
 COPY install/ubuntu_install_redis.sh /install/ubuntu_install_redis.sh

--- a/docker/install/ubuntu_install_rust.sh
+++ b/docker/install/ubuntu_install_rust.sh
@@ -28,7 +28,6 @@ export CARGO_HOME=/opt/rust
 curl -s -S -L https://sh.rustup.rs -sSf | sh -s -- -y --no-modify-path --default-toolchain nightly-2019-03-24
 . $CARGO_HOME/env
 rustup component add rustfmt
-cargo install sccache --no-default-features

 # make rust usable by all users
 chmod -R a+w /opt/rust