error: … while evaluating the attribute 'src.meta' at /pwd/lang/eval-fail-select-err.nix:2:3: 1| let 2| somepkg.src = throw "invalid foo bar"; | ^ 3| in somepkg.src.meta … while evaluating an expression to select 'meta' on it at /pwd/lang/eval-fail-select-err.nix:3:16: 2| somepkg.src = throw "invalid foo bar"; 3| in somepkg.src.meta | ^ 4| … caused by explicit throw at /pwd/lang/eval-fail-select-err.nix:2:17: 1| let 2| somepkg.src = throw "invalid foo bar"; | ^ 3| in somepkg.src.meta error: invalid foo bar