set PATH with MUSL bin

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "shadowsocks-rust"
-version = "1.15.0-alpha.7"
+version = "1.15.0-alpha.8"
 authors = ["Shadowsocks Contributors"]
 description = "shadowsocks is a fast tunnel proxy that helps you bypass firewalls."
 repository = "https://github.com/shadowsocks/shadowsocks-rust"

Dockerfile

@@ -28,6 +28,7 @@ RUN case "$TARGETARCH" in \
     ;; \
     esac \
     && wget -qO- "https://musl.cc/$MUSL-cross.tgz" | tar -xzC /root/ \
+    && PATH="/root/$MUSL-cross/bin:$PATH" \
     && CC=/root/$MUSL-cross/bin/$MUSL-gcc \
     && rustup target add $RUST_TARGET \
     && RUSTFLAGS="-C linker=$CC" \