Windows Regression Runners - Failing on Develop

From: Tom Kent (lists_at_[hidden])
Date: 2023-09-27 22:23:50

Starting sometime between 3am and 5pm on September 11, 2023, all the
windows regression runners started failing on the develop branch.

Master branch runners on the same VM are still doing fine (
https://www.boost.org/development/tests/master/developer/summary.html).

The output doesn't have anything jump out at me. Nor were there any commits
to the develop branch in that window that seem suspicious to me.

The regression run output ends with:
...found 1 target...
# Searching for "process_jam_log.exe" in
"C:\teeks99-09\run\boost_regression\stage\bin"...
Traceback (most recent call last):
File "run.py", line 71, in <module>
runner(root)
File "C:\teeks99-09\run\boost_regression_src\regression.py", line 286, in
__init__
self.main()
File "C:\teeks99-09\run\boost_regression_src\regression.py", line 623, in
main
getattr(self,action_m)()
File "C:\teeks99-09\run\boost_regression_src\regression.py", line 580, in
command_regression
self.command_setup()
File "C:\teeks99-09\run\boost_regression_src\regression.py", line 351, in
command_setup
self.build_if_needed(self.process_jam_log,self.pjl_toolset)
File "C:\teeks99-09\run\boost_regression_src\regression.py", line 714, in
build_if_needed
tool[ 'build_path' ] = self.tool_path( tool )
File "C:\teeks99-09\run\boost_regression_src\regression.py", line 739, in
tool_path
, '\n'.join( [ name_or_spec[ 'path' ], build_dir ] )
Exception: Cannot find "process_jam_log.exe" in any of the following
locations:
C:\teeks99-09\run\boost_regression\stage\bin\process_jam_log.exe
C:\teeks99-09\run\boost_regression\stage\bin

With the full output available here:
https://gist.github.com/teeks99/bb4230f6a1efdd7af11bd93341c950bf

Any ideas on this would be much appreciated.