Make debug output non blocking

ci/Jenkinsfile_utils.groovy

@@ -65,6 +65,7 @@ def init_git_win() {
 // pack libraries for later use
 def pack_lib(name, libs, include_gcov_data = false) {
   sh """
+set +e
 echo "Packing ${libs} into ${name}"
 echo ${libs} | sed -e 's/,/ /g' | xargs md5sum
 """
@@ -82,6 +83,7 @@ def unpack_and_init(name, libs, include_gcov_data = false) {
   init_git()
   unstash name
   sh """
+set +e
 echo "Unpacked ${libs} from ${name}"
 echo ${libs} | sed -e 's/,/ /g' | xargs md5sum
 """

ci/jenkins/Jenkins_steps.groovy

@@ -38,7 +38,7 @@ mx_cmake_mkldnn_lib = 'build/libmxnet.so, build/libmxnet.a, build/3rdparty/dmlc-
 mx_mkldnn_lib = 'lib/libmxnet.so, lib/libmxnet.a, lib/libiomp5.so, lib/libmkldnn.so.0, lib/libmklml_intel.so, 3rdparty/dmlc-core/libdmlc.a, 3rdparty/tvm/nnvm/lib/libnnvm.a'
 mx_tensorrt_lib = 'lib/libmxnet.so, lib/libnvonnxparser_runtime.so.0, lib/libnvonnxparser.so.0, lib/libonnx_proto.so, lib/libonnx.so'
 mx_lib_cpp_examples = 'lib/libmxnet.so, lib/libmxnet.a, 3rdparty/dmlc-core/libdmlc.a, 3rdparty/tvm/nnvm/lib/libnnvm.a, 3rdparty/ps-lite/build/libps.a, deps/lib/libprotobuf-lite.a, deps/lib/libzmq.a, build/cpp-package/example/*'
-mx_lib_cpp_examples_cpu = 'build/libmxnet.so, build/cpp-package/example/**/*, build/cpp-package/example/*'
+mx_lib_cpp_examples_cpu = 'build/libmxnet.so, build/cpp-package/example/*'
 
 // Python unittest for CPU
 // Python 2