Update rust/latest/Dockerfile

rust/latest/Dockerfile

@@ -18,13 +18,15 @@ RUN apt update && apt -y install \
 RUN useradd -m -d /home/container container \
     && echo "container ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
 
-USER container
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly --profile minimal --component rust-src
 
+ENV CARGO_HOME=/usr/local/cargo
+ENV PATH="/usr/local/cargo/bin:${PATH}"
+
+USER container
 ENV USER=container \
     HOME=/home/container \
-    CARGO_HOME=/home/container/.cargo \
-    PATH="/home/container/.cargo/bin:${PATH}"
+    PATH="/usr/local/cargo/bin:${PATH}"
 
 WORKDIR /home/container