[CI] Force doc build pass to mark success (#158)

docs/faq.md

@@ -4,7 +4,7 @@ This document contains frequently asked questions.
 
 How to Install
 --------------
-See [Installation](how_to/install.md)
+See [Installation](https://github.com/dmlc/tvm/blob/master/docs/how_to/install.md)
 
 TVM's relation to XLA
 ---------------------

tests/ci_build/Dockerfile.gpu

@@ -10,6 +10,10 @@ RUN bash /install/ubuntu_install_llvm.sh
 RUN bash /install/ubuntu_install_opencl.sh
 RUN bash /install/ubuntu_install_iverilog.sh
 
+# Fix recommonmark to latest version
+RUN git clone https://github.com/rtfd/recommonmark
+RUN cd recommonmark; python setup.py install
+
 # Environment variables
 ENV PATH=/usr/local/nvidia/bin:${PATH}
 ENV PATH=/usr/clang+llvm-4.0.0-x86_64-linux-gnu-ubuntu-14.04/bin:${PATH}

tests/scripts/task_python_docs.sh

 #!/bin/bash
 cd docs
-PYTHONPATH=../python make html
+PYTHONPATH=../python make html || exit -1
 cd _build/html
 tar czf docs.tgz *
 mv docs.tgz ../../../