That is useful for metrics collection as buildkite metrics only reports per queue metrics
- option not to shut down sccache after 10 minutes - zero sccache stats before running the build - decrease number of jenkins agents
- configured sccache on buildkite windows machines - final result is sent to phabricator from "summary.py" that waits for both builds to complete - extracted "add_url_artifact" to a runnable script - reorganized code and fixed some of TODOs
