[#109, #110] Eastwood linter fixes (@jafingerhut)
Message queue tests housekeeping
~out-of-order tests: debug #1
~out-of-order tests: debug #2
Revert "~out-of-order tests: debug #2"

This reverts commit 91bb8b59d719c8057d950b582986af2265c4a6a3.
~out-of-order tests: debug #3