Doing hadrian/build test

takes absolutely ages.   It seems that it is building haddock, running haddock, building check_exact, and other things.  Eg right now it is doing

Run Haddock BuildPackage: libraries/parsec/src/Text/Parsec.hs (and 24 more) => _build/doc/html/libraries/parsec-3.1.15.0/parsec.haddock

But I didn't ask to do Haddock. I just wanted to run the testsuite.   How can I do that?

I would prefer never to build haddock.

Thanks

Simon