With the current version of test-run, that vshard uses now (d171b6e),
all tests work fine and everything is ok. The problem occures when
attempting to use a later version of test-run starting since 53389a8.
In this case, the parallel.test.lua and sync.test.lua tests start to
fail because the new test-run version catches some exception from tests
and exits with a failure.
This patch should be concidered as a preparation for updating test-run
version for vshard.
With the current version of test-run, that vshard uses now (d171b6e), all tests work fine and everything is ok. The problem occures when attempting to use a later version of test-run starting since 53389a8. In this case, the parallel.test.lua and sync.test.lua tests start to fail because the new test-run version catches some exception from tests and exits with a failure.
This patch should be concidered as a preparation for updating test-run version for vshard.