e.g.: https://build.webkit.org/#/builders/50/builds/1012 Traceback (most recent call last): File "/home/buildbot/worker/win10-release-tests/build/Tools/Scripts/webkitpy/test/main.py", line 52, in <module> _host = Host() File "/home/buildbot/worker/win10-release-tests/build/Tools/Scripts/webkitpy/common/host.py", line 47, in __init__ SystemHost.__init__(self) File "/home/buildbot/worker/win10-release-tests/build/Tools/Scripts/webkitpy/common/system/systemhost.py", line 41, in __init__ self.platform = platforminfo.PlatformInfo(sys, platform, self.executive) File "/home/buildbot/worker/win10-release-tests/build/Tools/Scripts/webkitpy/common/system/platforminfo.py", line 77, in __init__ self.os_version = self._win_version() File "/home/buildbot/worker/win10-release-tests/build/Tools/Scripts/webkitpy/common/system/platforminfo.py", line 243, in _win_version version = self._win_version_str() File "/home/buildbot/worker/win10-release-tests/build/Tools/Scripts/webkitpy/common/system/platforminfo.py", line 253, in _win_version_str return self._executive.run_command(['cmd', '/c', 'ver'], decode_output=False) File "/home/buildbot/worker/win10-release-tests/build/Tools/Scripts/webkitpy/common/system/executive.py", line 421, in run_command _log.debug('"%s" took %.2fs' % (self.command_for_printing(args), time.time() - start_time)) File "/home/buildbot/worker/win10-release-tests/build/Tools/Scripts/webkitpy/common/system/abstractexecutive.py", line 111, in command_for_printing return string_utils.decode(string_utils.encode(' '.join(args), encoding='unicode_escape')) TypeError: sequence item 0: expected str instance, bytes found
<rdar://problem/80892896>