There has been some trouble with archive_webkit_tests recently. There may still be a current problem with mac10.11 blink rel (crbug.com/777520). Dirk did some firefighting and improved the archive script for crbug.com/776334.
The future of the ownership of "Blink Infra" incl. layout test runner is still uncertain
Notable recent work in Blink Infra:
crrev.com/c/710165: Dirk removed the Mac 10.9 bots; enabled layout tests on Mac 10.13
crrev.com/c/715336: Aleks made further improvements to new results viewer
crrev.com/c/718483: Steve made a fix in try-flag
crrev.com/c/706352: Will Chen added a --watch flag to run-webkit-tests
Before leaving, tkent@ also made more changes to Great Blink mv script