Update Dockerfile

Dockerfile

@@ -9,19 +9,19 @@ RUN pacman -Syu --noconfirm
 # install gcc
 RUN pacman -S --noconfirm gcc grep sudo git
 
+# create user
+RUN useradd builduser
+RUN echo "builduser ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
+
+USER builduser
+
 # install rustup
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
+RUN rustup install stable
+RUN rustup default stable
 
 # rustup directory
-ENV PATH /root/.cargo/bin:$PATH
+ENV PATH /home/builduser/.cargo/bin:$PATH
 
-# install cargo arch
+# install cargo-arch
 RUN cargo install --git https://github.com/ZettaScript/cargo-arch
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-
-# create user
-RUN useradd --no-create-home --shell=/bin/false builduser && usermod -L builduser
-RUN echo "builduser ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
-
-# place bins into accessible places
-RUN cp /root/.cargo/bin/cargo /usr/bin
-RUN cp /root/.cargo/bin/cargo-arch /usr/bin
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