Run clean up after setup_native command.

crossbuild.containerfile

@@ -33,7 +33,7 @@ WORKDIR /tmp
 COPY debian-src.sources local-pkgs.list /etc/apt/sources.list.d/
 COPY local-pkgs /etc/apt/preferences.d/
 
-# Install packages from pkgs list and mark them as held, test gcc and cleanup
+# Install packages from pkgs list and mark them as held, test gcc
 COPY pkgs ./
 RUN mkdir /pkgs \
     && touch /pkgs/Packages \
@@ -45,8 +45,7 @@ RUN mkdir /pkgs \
     && gcc --print-search-dir \
     && echo 'int main() { return 0; }' > main.c \
     && gcc -o main main.c \
-    && ./main \
-    && find /tmp -mindepth 1 -delete
+    && ./main
 
 # Copy the native build artifacts from the previous stage
 COPY --from=native /native /native
@@ -55,6 +54,9 @@ COPY --from=native /native /native
 COPY setup_native ./
 RUN [ "/native/bash", "-c", "PATH=/native:$PATH ./setup_native import $(awk '{ print $1 }' pkgs)" ]
 
+# Clean up /tmp
+RUN find /tmp -mindepth 1 -delete
+
 # Copy the build scripts to /usr/local/bin
 COPY build_source build_indep build_archdep build /usr/local/bin/