Fix path, include all toolchains in the Docker image

.github/workflows/build.yml

@@ -8,6 +8,7 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
+  PATH: 
 
 jobs:
   build-linux:
@@ -26,8 +27,11 @@ jobs:
           - aarch64-unknown-linux-musl
 
     steps:
+      - name: Set path variable
+        run: echo $HOME/.cargo/bin >> $GITHUB_PATH
+
       - name: Switch toolchain
-        run: $HOME/.cargo/bin/rustup default stable-${{ matrix.target }}
+        run: rustup default stable-${{ matrix.target }}
 
       - uses: actions/checkout@v4
 

Dockerfile

@@ -6,5 +6,9 @@ RUN apt-get install -yqq wget build-essential yasm libavutil-dev libavcodec-dev
 WORKDIR /opt/rust
 RUN wget https://sh.rustup.rs -O rustup-init.sh
 RUN chmod +x rustup-init.sh
-RUN ./rustup-init.sh -y -t x86_64-unknown-linux-gnu x86_64-unknown-linux-musl aarch64-unknown-linux-gnu aarch64-unknown-linux-musl
 
+RUN ./rustup-init.sh -y
+RUN $HOME/.cargo/bin/rustup install --force-non-host stable-x86_64-unknown-linux-gnu
+RUN $HOME/.cargo/bin/rustup install --force-non-host stable-x86_64-unknown-linux-musl
+RUN $HOME/.cargo/bin/rustup install --force-non-host stable-aarch64-unknown-linux-gnu
+RUN $HOME/.cargo/bin/rustup install --force-non-host stable-aarch64-unknown-linux-musl