The exit code -1073741571 is exception 0xc00000fd which is stack-overflow.

Does it crash the same way if you just run the unit-test on the commandline (typing 'echo %ERRORLEVEL%' will print the last exit code)?

Can do you have a simple reproduction?

Added Area-VM, Triaged labels.

This comment was originally written by @Andersmholmgren

yes it does. Just verified then

I'll see what I can do about a simple reproduction. I just created a new project via the editor and ran the generated hello world and the problem didn't occur so it's more involved than that and I have no idea at this stage the circumstances that cause it.

is there any way for me to generate more diagnostic output for you?

This comment was originally written by @Andersmholmgren

OK I've tracked it down. You can reproduce with

void main() {
    print("Hello, World!");
}

class Bar<B extends Bar> {}

class Foo<F extends Foo> implements Bar<F> {}

This used to work but stopped working in the last stable release.

Note on a mac this exits straight away (takes a few seconds on windows) and gives a different error code: 139

This no longer reproduces.