This test is sometimes flaky on hydra as at the time of the `git clone` the network isn't really configured yet[1]. That problem doesn't seem to occur locally but if you run it on a machine with high enough load (such as hydra build machines). Hopefully this will make the test not flaky anymore. [1] https://hydra.nixos.org/build/118710378/nixlog/21/raw
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at https://nixos.org/nixos and in the manual in doc/manual.