When I let the machine to run the third line "git submodule update --init --recursive", it runs for a few minutes and eventually report an error
(base) root@653dab7338f7:~/waifu2x-caffe# git submodule update --init --recursive
Cloning into '/root/waifu2x-caffe/rapidjson/thirdparty/gtest'...
fatal: unable to access 'https://chromium.googlesource.com/external/googletest.git/': Failed to connect to chromium.googlesource.com port 443: Connection timed out
fatal: clone of 'https://chromium.googlesource.com/external/googletest.git' into submodule path '/root/waifu2x-caffe/rapidjson/thirdparty/gtest' failed
Failed to clone 'thirdparty/gtest'. Retry scheduled
Cloning into '/root/waifu2x-caffe/rapidjson/thirdparty/gtest'...
fatal: unable to access 'https://chromium.googlesource.com/external/googletest.git/': Failed to connect to chromium.googlesource.com port 443: Connection timed out
fatal: clone of 'https://chromium.googlesource.com/external/googletest.git' into submodule path '/root/waifu2x-caffe/rapidjson/thirdparty/gtest' failed
Failed to clone 'thirdparty/gtest' a second time, aborting
Failed to recurse into submodule path 'rapidjson'
(base) root@653dab7338f7:~/waifu2x-caffe#
When I let the machine to run the third line "git submodule update --init --recursive", it runs for a few minutes and eventually report an error
what should I do about it?