if the number of changed files is less or equal to 100,
the new per-commit analysis will be used. New analysis shows
only warnings which were introduced by your changes.

`LOG.error(e)` rethrew exception, leaving failed future in the list.

that allows to move most of performance tests into AWS and keep some of them on hardware agents

We could duplicate them because in case like ((42)) we used to show one
warning for (42) as for parenthesized expression inside another one and
another warning for (42) as for parenthesized expression containing
a literal expression.