- Use nix from nixpkgs rather than from PATH. This is needed when the nix in
PATH is nixUnstable-3.0pre20201020_e0ca98c or later because nix commit
787469c7b66aec12ab6847e7db2cdc8aef5c325e removed <nix/unpack-channel.nix>.
- Use nix from nixpkgs rather than from PATH. This is needed when the nix in
PATH is nixUnstable-3.0pre20201020_e0ca98c or later because nix commit
787469c7b66aec12ab6847e7db2cdc8aef5c325e removed <nix/unpack-channel.nix>.