error:
       … while calling the 'foldl'' builtin

         at /pwd/lang/eval-fail-foldlStrict-strict-op-application.nix:2:1:

            1| # Tests that the result of applying op is forced even if the value is never used
            2| builtins.foldl'
             | ^
            3|   (_: f: f null)

       … while calling anonymous lambda

         at /pwd/lang/eval-fail-foldlStrict-strict-op-application.nix:3:7:

            2| builtins.foldl'
            3|   (_: f: f null)
             |       ^
            4|   null

       … from call site

         at /pwd/lang/eval-fail-foldlStrict-strict-op-application.nix:3:10:

            2| builtins.foldl'
            3|   (_: f: f null)
             |          ^
            4|   null

       … while calling anonymous lambda

         at /pwd/lang/eval-fail-foldlStrict-strict-op-application.nix:5:6:

            4|   null
            5|   [ (_: throw "Not the final value, but is still forced!") (_: 23) ]
             |      ^
            6|

       error: Not the final value, but is still forced!