anchor.diff:          broken = remediate_whitelist "Broken";
           blacklisted = x: "";
           insecure = remediate_insecure;
  +        unknown-meta = x: "";
         };
         remediate_whitelist = allow_attr: attrs:
           ''
  
positive.code:           Package ‘${attrs.name or "«name-missing»"}’ in ${pos''} ${errormsg}, refusing to evaluate.
  
            '' + ((builtins.getAttr reason remediation) attrs));
  
        # Check if a derivation is valid, that is whether it passes checks for
        # e.g brokenness or license.
  
negative.code: }:
  
  let
  
    shouldCheckMeta = config.checkMeta or false;
  
    allowUnfree = config.allowUnfree or false || builtins.getEnv "NIXPKGS_ALLOW_UNFREE" == "1";
  
  