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I am building a go project using nix flake but it fails in buildPhase. I have no idea why but it builds fine when I run go build in dev shell.
The project: https://github.com/charmbracelet/freeze
{ description = "freeze"; inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable"; flake-utils.url = "github:numtide/flake-utils"; gomod2nix = { url = "github:tweag/gomod2nix"; inputs.nixpkgs.follows = "nixpkgs"; inputs.flake-utils.follows = "flake-utils"; }; }; outputs = { self, nixpkgs, flake-utils, gomod2nix, }: flake-utils.lib.eachDefaultSystem (system: let pkgs = nixpkgs.legacyPackages.${system}; overlays = [gomod2nix.overlays.default]; #charm-freeze = pkgs.buildPackages.freeze; in rec { packages = { charm-freeze = pkgs.stdenvNoCC.mkDerivation rec { name = "freeze"; src = ./.; #modules = ./gomod2nix.toml; buildInputs = with pkgs; [ go gomod2nix.packages.${system}.default ]; devShell = pkgs.mkShell { name = "freeze"; }; #packages = pkgs.buildPackages.default; buildPhase = '' gomod2nix generate go build ''; installPhase = '' mkdir $out/ cp freeze $out/ ''; }; }; defaultPackage = packages.charm-freeze; }); }