Capture stderr in build.log

Author: ruhan1

java-components/build-request-processor/src/main/java/com/redhat/hacbs/container/build/preprocessor/AbstractPreprocessor.java

@@ -189,7 +189,7 @@ private String getContainerFile() {
             ENV PROXY_URL=$PROXY_URL
             COPY .jbs/run-build.sh /var/workdir
             COPY . /var/workdir/workspace/source/
-            RUN /var/workdir/run-build.sh | tee /var/workdir/build.log
+            RUN /var/workdir/run-build.sh 2>&1 | tee /var/workdir/build.log
             """.formatted(recipeImage);
 
         if (type == ToolType.ANT) {