nushell seems to do some complex job-control
and causes issues when the NixOS VM tests run execute.
It can be reproduced by calling wrapping the line inside a pkgs.writeShellScriptBin
pkgs.writeShellScriptBin "fails-in-vm" ''
${pkgs-unstable.nushell}/bin/nu -c "^ls"
''
To still allow full integration tests of the code itself,
I try to avoid the issue by creating custom systemd modules that
simply call the script however I need.
And then I can access the output of journalctl to see if it worked
as expected.
It is by no means a nice solution but it works 🤷.