Without https://github.com/NixOS/nixpkgs/pull/434761 evaluation of the
`nixpkgsLibTests` will fail in CI with recent enough Lix, due to reliance on
the TOML integer saturation bug.
Reported-by: Sergei Zimmerman <sergei@zimmerman.foo>
Change-Id: I6a6a6964838009d2c525f67035f84072fdfad988