error:
       … while calling the 'fetchurl' builtin
         at /pwd/lang/eval-fail-fetchurl-baseName.nix:1:1:
            1| builtins.fetchurl "https://example.com/~wiggle~"
             | ^
            2|

       error: invalid store path name when fetching URL 'https://example.com/~wiggle~': name '~wiggle~' contains illegal character '~'. Please pass an attribute set with 'url' and 'name' attributes to 'fetchurl',  so that it can create a valid store path.