I got the error also in C:\mozilla-build\python3\Lib\subprocess.py when running ` mach clang-format`.
Dumpling out the `env` variable, I see heaps of b's prepended: {b'!::': b'::\\', b'!EXITCODE': b'00000001' ...
I guess that's another bug, but perhaps we can fix the issue globally. What about the `mach clobber` from bug 1578198?
Bug 1577826 Comment 16 Edit History
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I got the error also in C:\mozilla-build\python3\Lib\subprocess.py when running ` mach clang-format`.
Dumpling out the `env` variable, I see heaps of b's prepended: {b'!::': b'::\\', b'!EXITCODE': b'00000001' ...
I guess that's another bug, but perhaps we can fix the issue globally. What about the `mach clobber` from bug 1578198?
EDIT: In this case the workaround was calling with ` None` instead of ` env` . But it's mildly annoying that various tools are broken so you need to fix them first before doing "real" work :-(