pub fn custom_cgroup_remove_midrun(ctx: &Ctx<'_>) -> Result<AssertResult>Expand description
Remove half of up to four cgroups mid-run.
The kept half (cg_0, cg_1) lives on the Backdrop and
persists across both Steps. The ephemeral half (cg_2 / cg_3,
up to the topology limit) is a step-local Step-0 CgroupDef set
whose automatic per-Step teardown IS the “remove mid-run”
event — no explicit Op::stop_cgroup / Op::remove_cgroup
ops required. Step 1 is then a pure hold with only the
Backdrop cgroups still present.