Windows CLI auto run causes error: wrong number of arguments, should be from 1 to 2

[eidng8]

Windows command prompt and power shell provide a feature to run something at startup. Say, add chcp 65001 to registry

[HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\Autorun]

and it'll change to UTF-8 whenever a command prompt or power shell is launched. However, this causes the error to occur (say, with travis setup releases):

error: wrong number of arguments, should be from 1 to 2
usage: git config [<options>]

... snipped...

bad URI(is not URI?): "Active code page: 65001\nActive"
for a full error report, run travis report

The "Active code page: 65001" part is from the chcp command. And travis runs fine if the autorun is not turned on.

I'm guessing that if anything were written to stdout (or even stderr?) would cause error.