diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile
index fd295810937a..68a0bdb4f18a 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile
@@ -62,6 +62,10 @@ ENV RUST_CONFIGURE_ARGS \
       $USE_NEW_MANGLING \
       --set rust.thin-lto-import-instr-limit=10
 
+RUN echo $ENABLE_GCC_CODEGEN
+RUN echo $RUST_CONFIGURE_ARGS
+RUN echo $GCC_EXEC_PREFIX
+
 COPY host-x86_64/x86_64-gnu-llvm-15/script.sh /tmp/
 
 ENV SCRIPT /tmp/script.sh