Espruino on the Pi (with WiringPi)

The build works on a Pi2, but not all of the tests pass:

--------------------------------------------------
 227 of 232 tests passed
FAILS:
tests/test_new_nested.js
tests/test_pipe.js
tests/test_new_nested2.js
tests/test_language.js
tests/test_number_constructor.js
--------------------------------------------------

Are these required to pass, or just nice to have passes?

Thanks.