The expensive hardening jobs do not execute `VERBOSE=yes make check` on one line and instead run `VERBOSE=yes` and `make check` separately. This prevents `make check` from showing verbose output. For example: [https://jenkins.torproject.org/job/tor-ci-linux-master-expensive-hardening/56/ARCHITECTURE=amd64,SUITE=stretch/consoleText] (search for `VERBOSE`).