2013-04-28-09.58.34: src/lib/src/unit-test.pkg:  Fixed: assert() had printf() calls within   hth::with_mutex_do  mtx::mutex .{ ... }   block, which is not only st00pid, but resulted in lockup with new code that sets    runtime::microthread_switch_lock_refcell__global  whenever the primary hostthread is holding a mutex.