❯ sudo nix-channel --update                                                      30s 940ms → 1
unpacking channels...
error: syntax error, unexpected $end, at /nix/store/m560nicvh38cchixsqanm1z3yxzad24r-env-manifest.nix:1:1
error: program '/nix/store/mf0pq6471kq4y0fv3fszrpvz7sr4nbpp-nix-2.0/bin/nix-env' failed with exit code 1

 ~
❯ sudo nixos-rebuild switch                                                       6s 922ms → 1
error: syntax error, unexpected $end, at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/default.nix:1:1
building Nix...
error: syntax error, unexpected $end, at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/default.nix:1:1
error: syntax error, unexpected $end, at /nix/store/p9p4kvpl1vv66xldvr2fndwgkiwn9x1f-nixos-18.09pre138687.1b1be29bf82/nixos/default.nix:1:1
^Cerror: interrupted by the user
warning: don't know how to get latest Nix
building the system configuration...
error: syntax error, unexpected $end, at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/default.nix:1:1