py3: test to check which commands run This test helps us to keep track on the commands which runs to Python 3. The full traceback is hidden. Thanks to Augie and Martijn to wrap it up in four lines.

bisect: build a displayer only once There is multiple spot using this, building it early will help to extract more of the logic into the bisect module.

bisect: factor commonly update sequence For now, This remains a closure in the module to avoid circular import with used module.

bisect: move check_state into the bisect module Now that the function is simpler, we resume our quest to move the logic into the bisect module. In the process, we add basic documentation.

bisect: simplify conditional in 'check_state' Now that extra code about "updating" flag have been removed, we can simplify the condition flow and remove a level.

bisect: remove code about "update-flag" in check_state Now that the flag dedicated to updating the flag are handled earlier, we do not need to handle them in the 'check_state' function.

bisect: rename 'check_code' to match our naming scheme We need to do it early, otherwise 'check-commit' will complain every time we touch it.

bisect: minor movement of code handle flag updating state The code flag handling is quite complicated, we are moving code around to prepare further simplification.

test-clone: discard lock-related messages We can't predict where those will show up and they're not super-important for the contents of this particular test, so just drop them. Further reduces the flakiness of the test to zero.

test-clone: fix some instability in pooled clone race condition test Healthy output (one log file mentioning "existing pooled" and one mentioning "new pooled") will now print in a stable order, but unhealthy output will print some sort of error. This reduces the flakiness of the test from 55% to 38%. My next patch makes it completely stable.