Symlink arg toolchain to nightly

.github/workflows/build.yml

@@ -14,8 +14,8 @@ on:
         default: "nightly"
 
 jobs:
-  push_to_registry:
-    name: Push Docker image to Docker Hub
+  build:
+    name: Build
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
@@ -36,7 +36,7 @@ jobs:
           tags: |
             type=raw,value=latest
 
-      - name: Build and push Docker image
+      - name: Build and push Docker image to ghcr
         uses: docker/build-push-action@v4
         with:
           context: .

Dockerfile

@@ -9,7 +9,8 @@ ENV RUSTUP_HOME=/usr/local/rustup \
 RUN apk add --no-cache rustup build-base jq perl clang llvm
 
 ARG RUST_TOOLCHAIN=nightly
-RUN rustup-init -y --default-toolchain ${RUST_TOOLCHAIN} -c rust-src
+RUN rustup-init -y --default-toolchain ${RUST_TOOLCHAIN} -c rust-src && \
+    ln -s /usr/local/rustup/toolchains/${RUST_TOOLCHAIN}-x86_64-unknown-linux-musl /usr/local/rustup/toolchains/nightly-x86_64-unknown-linux-musl || true
 
 RUN curl -L --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh | ash && \
     cargo binstall --no-confirm --no-symlinks cargo-make cargo-vita