Two sources of random red on WSL, neither of them a test.
A launch that never happened. The Godot binary is a Windows executable
started across the interop boundary, and with six going at once that start
occasionally just fails: exit 127, an empty log, no engine banner, nothing
run. It was indistinguishable from a failure and moved between tests from
run to run. Anything that actually ran got as far as printing the banner, so
the two are easy to tell apart; a start that produced no banner is retried
up to three times and reported as NOSTART if it never comes up. Retries are
printed, never hidden - a test that needed one is saying the machine is
struggling even where it went on to pass.
The working tree as a run directory. WSL ran the suite in place, so six
Godot processes wrote .godot and created and deleted files under
PlanetSetups/ inside the live repo, alongside git and whatever else was
using it. Single tests failed at random under that - a delete that did not
take, a scene that would not instantiate - never the same one twice. WSL now
copies to %LOCALAPPDATA% first, the same isolation Termux already gets from
its own copy, on a native NTFS path so the Windows Godot still reads it at
full speed. Costs about 10s a run and leaves the repo untouched.
Four consecutive clean 124/124 runs since.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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