NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST mpg321-0.2.10 x86_64-linux /nix/store/n1fxg1wfmy8v9x51qh3k3pk6yp0qk1sv-mpg321-0.2.10.drv /nix/store/syjm5smx15ciplcx0wy800ngx8igg0rf-mpg321-0.2.10