fix: limit the number of build jobs on sglang-wideep (#3723)

Signed-off-by: Harrison Saturley-Hall <hsaturleyhal@nvidia.com>

container/Dockerfile.sglang-wideep

@@ -3,6 +3,7 @@
 
 ARG SGLANG_IMAGE_TAG="v0.5.3.post2"
 ARG BRANCH_TYPE
+ARG CARGO_BUILD_JOBS
 
 FROM scratch AS local_src
 COPY . /src
@@ -16,6 +17,8 @@ WORKDIR /sgl-workspace
 # Providing --build-arg BRANCH_TYPE=remote will editable install the remote dynamo repo
 # Default is to install the latest published dynamo version
 ARG BRANCH_TYPE
+ARG CARGO_BUILD_JOBS
+
 COPY --from=local_src /src /tmp/local_src
 RUN if [ "$BRANCH_TYPE" = "local" ]; then \
         cp -r /tmp/local_src /sgl-workspace/dynamo; \
@@ -23,6 +26,8 @@ RUN if [ "$BRANCH_TYPE" = "local" ]; then \
         git clone https://github.com/ai-dynamo/dynamo.git /sgl-workspace/dynamo; \
     fi
 
+ENV CARGO_BUILD_JOBS=${CARGO_BUILD_JOBS:-16}
+
 # SGLang does not use a venv in their container
 RUN if [ "$BRANCH_TYPE" = "local" ]; then \
     cd dynamo/lib/bindings/python && \