Use fetchGit instead of fetchTarball to get nixpkgs.
let
- # In order to get the hash of another tarball, run: `nix-prefetch-url --unpack <url>`
pkgs =
- builtins.fetchTarball {
- name = "nixpkgs-2018-10-07";
- url = https://github.com/nixos/nixpkgs/archive/865cbd380d2568806c6e46c9a4bc746af7ec13c9.tar.gz;
- sha256 = "0r3gj1rci2ag6k8g5wcz1m4l6brvzgbfz92kpl74mrh7kjdy1m3p";
+ builtins.fetchGit {
+ name = "nixpkgs-2018-11-13";
+ url = https://github.com/nixos/nixpkgs/;
+ rev = "695a3d4254545968fc3015142c5299c0da5ca0a9";
};
in
