[BUG] "E482: Can 't open file /path/to/manifest for writing: no such file or directory"

[ChristophSchmidpeter]

NeoVim Version
Output of nvim --version

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. nvim --clean -u minimal.lua
2. Note E482: Can't open file /path/to/manifest for writing: no such file or directory error

Example test files to reproduce
minimal.lua.txt

Expected behavior
No error message

Logs
Set log level, but I cannot find logs. Where can I find them?

[rcarriga]

This is just a packer error message that has no effect, closing as it's not related to neotest but feel free to submit a minimal init which avoids the issue