Check failed: isFeedbackVector()

Today, my local dev server crashed immediately on startup, emitting this error message:

# Fatal error in , line 0
# Check failed: IsFeedbackVector().
#FailureMessage Object: 0x10dc02480
=> Exited from signal: SIGILL
=> Your application is crashing. Waiting for file change.

What does that mean?

After restarting it, everything went back to normal. But it made me quite suspicious that something weird is going on.

There’s a similar error report here: Rocket.Chat instance suddenly crashed #17956

Suggested action was to increase the default memory limit of NodeJS. In that instance it seems to have solved the issue, but it will hardly be helpful in your case. Intriguingly just 4 days ago someone reported an issue, and their Node.js crashed too (Check failed: IsFeedbackVector())

Thanks. I saw the first one, but missed the second. Interesting.