jenkins/incubator-mxnet pipeline is broken on the master

[b0noI]

https://builds.apache.org/blue/organizations/jenkins/incubator-mxnet/detail/master/83/pipeline/

output:

[amalgamation] Running shell script

• tests/ci_build/ci_build.sh cpu make -C amalgamation/ USE_BLAS=openblas MIN=1
  WORKSPACE: /home/jenkins/jenkins-slave/workspace/amalgamation
  CI_DOCKER_EXTRA_PARAMS:
  COMMAND: make -C amalgamation/ USE_BLAS=openblas MIN=1
  CONTAINER_TYPE: cpu
  BUILD_TAG: jenkins-incubator-mxnet-master-83
  NODE_NAME: mxnet3
  DOCKER CONTAINER NAME: mx-ci.cpu
  PRE_COMMAND: tests/ci_build/with_the_same_user

Building container (mx-ci.cpu)...
Sending build context to Docker daemon 59.39 kB

Step 1/9 : FROM ubuntu:14.04
---> 4a2820e686c4
Step 2/9 : COPY install/ubuntu_install_core.sh /install/
---> Using cache
---> a2648bbfb7e4
Step 3/9 : RUN /install/ubuntu_install_core.sh
---> Using cache
---> bd54bb963df0
Step 4/9 : COPY install/ubuntu_install_python.sh /install/
---> Using cache
---> b79f713d5145
Step 5/9 : RUN /install/ubuntu_install_python.sh
---> Using cache
---> 570842ae2af2
Step 6/9 : COPY install/ubuntu_install_scala.sh /install/
---> Using cache
---> 6f8e5f2011ba
Step 7/9 : RUN /install/ubuntu_install_scala.sh
---> Using cache
---> e2b49cb08c67
Step 8/9 : COPY install/ubuntu_install_r.sh /install/
---> Using cache
---> f5f990f7f4ac
Step 9/9 : RUN /install/ubuntu_install_r.sh
---> Using cache
---> d795cd130ad6
Successfully built d795cd130ad6
Running 'make -C amalgamation/ USE_BLAS=openblas MIN=1' inside mx-ci.cpu...
Adding group jenkins' (GID 1001) ... Done. make: Entering directory /workspace/amalgamation'
g++ -std=c++11 -Wno-unknown-pragmas -Wall -DMSHADOW_USE_CBLAS=0 -DDISABLE_OPENMP=1 -DMSHADOW_USE_CUDA=0 -DMSHADOW_USE_MKL=0 -DMSHADOW_RABIT_PS=0 -DMSHADOW_DIST_PS=0 -DDMLC_LOG_STACK_TRACE=0 -DMSHADOW_FORCE_STREAM -DMXNET_USE_OPENCV=0 -DMXNET_PREDICT_ONLY=1 -fPIC -o mxnet_predict-all.o -c mxnet_predict-all.cc
mxnet_predict-all.cc:42:37: fatal error: io/threaded_input_split.h: No such file or directory
#include <io/threaded_input_split.h>
^
compilation terminated.
make: Leaving directory `/workspace/amalgamation'
make: *** [mxnet_predict-all.o] Error 1

[b0noI]

I was not able to reproduce it by running manually.