I uprade to v1.13 from v1.12 today, when I run :GoTest, it never stops. I have tried `:GoUpdateBinaries", it still the same. Is that a bug ?
Can you give more detail what it means it never stops? couple of screenshots would be useful as well.

it never turn green
The same is happening for me. If I run go test outside of vim it runs fine and passes but it never completes inside vim. I'm on 1.13 too.
One more thing that might be related. I have this in my .vimrc to compile tests without running them:
function! s:build_go_files()
let l:file = expand('%')
if l:file =~# '^\f\+_test\.go$'
call go#cmd#Test(0, 1)
elseif l:file =~# '^\f\+\.go$'
call go#cmd#Install(0)
endif
endfunction
which I took from here: https://github.com/fatih/vim-go-tutorial#test-it.
It's failing on 1.13 with this error:
Error detected while processing function <SNR>1_build_go_files:
line 3:
E117: Unknown function: go#cmd#Test
I ran a git bisect and found out my problems start at commit 8f96994867261a968b8c75fb1eedaab5e839c43c but that led me to seeing go#cmd#Test was now go#test#Test.
However, at that point :GoTest was working. Another bisect indicates :GoTest stopped responding for me at d2ff39ca7d146f2e1a64226f7f862e1febc8528b.
Hope this helps.
Oh I see. This is because I've disabled echo via:
let g:go_echo_command_info = 0
This is fixed now. Please pull latest master.
@vdemario
I need to update the tutorial. Thanks for the heads up. The logic for :GoTestXXX commands have been moved to it's own file, which give us more flexibility going forward.
Everything is working now, thanks @fatih.
@fatih, could you update vimrc#L169 with go#test#Test, it still contains go#cmd#Test. Thanks.
@kjelle where?
@fatih check out https://github.com/fatih/vim-go-tutorial/blob/master/vimrc#L169
Most helpful comment
Oh I see. This is because I've disabled
echovia:This is fixed now. Please pull latest master.
@vdemario
I need to update the tutorial. Thanks for the heads up. The logic for
:GoTestXXXcommands have been moved to it's own file, which give us more flexibility going forward.