The test failed prior to the bug fix:

Unit Tests
  Distribution.Simple.Command
    option argument tests
      parses verbosity successfully:           OK
      handles argument parse error gracefully: FAIL
        message threw an exception: =2
        CallStack (from HasCallStack):
          error, called at src/Distribution/ReadE.hs:42:24 in Cabal-3.7.0.0-inplace:Distribution.ReadE

1 out of 2 tests failed (0.00s)