Fragile test case

[vbgl]

The cram test in test/blackbox-tests is prone to spurious failures. In various places, it blindly calls dune and expects no output from it. For instance:

reason-react/test/blackbox-tests/useCallback.t

Line 19 in f0cf5e4

$ dune build @melange

However, dune may print warning messages:

Warning: Cache directories could not be created: Permission denied; disabling cache

[davesnx]

It seems related with the cache. Disabling the cache for this call is probably a good idea. Thanks

[davesnx]

I have tried enabling the cache and running the tests and I don't see this warning. What version of dune are you using?

[vbgl]

Version 3.17.0.