Properly handle backtraces of exited ThreadHandles
Properly handle backtraces of exited ThreadHandles

celluloid/celluloid,davydovanton/celluloid,kenichi/celluloid,mehta/celluloid,marshall-lee/celluloid,olleolleolle/celluloid,seuros/celluloid,TiagoCardoso1983/celluloid,jasonm23/celluloid,jstoja/celluloid,sideci-sample/sideci-sample-celluloid,dilumn/celluloid