When _can_ ClearBuildCacheMutator(BUILD) be used?

[joshfriend]

clear-build-cache-before: Deletes the contents of the build cache before the scenario is executed (SCENARIO), before cleanup (CLEANUP) or before the build is executed (BUILD).

For a scenario using clear-build-cache-before = BUILD or CLEANUP I get errors when using both the tooling api and cli executors:

ClearBuildCacheMutator(BUILD) is not allowed to be executed between builds with invoker Tooling API
ClearBuildCacheMutator(BUILD) is not allowed to be executed between builds with invoker `gradle` command
ClearBuildCacheMutator(CLEANUP) is not allowed to be executed between builds with invoker Tooling API
ClearBuildCacheMutator(CLEANUP) is not allowed to be executed between builds with invoker `gradle` command

It seems that the clear build cache mutator is only usable between scenarios, which is not useful for my case where I want to force a clean local cache on each iteration. I can probably just disable local cache entirely to always force remote cache, but that doesn't really realistically represent the scenario i want to benchmark.

[asodja]

It should be possible to use it with --no-daemon flag for BUILD and CLEANUP.

The reason why it's not allowed with other invokers is, that daemon keeps cache open or even keep some data in memory.