_to_errlog : 
  <span><span class="optlabel">?include_value_history</span>:bool <span class="arrow">&#45;&gt;</span></span>
  <span><span class="optlabel">?include_taint_events</span>:bool <span class="arrow">&#45;&gt;</span></span>
  <span><span class="label">nesting</span>:int <span class="arrow">&#45;&gt;</span></span>
  <span><span class="label">pp_immediate</span>:<span>(<span><span class="xref-unresolved">F</span>.formatter <span class="arrow">&#45;&gt;</span></span> unit)</span> <span class="arrow">&