Check for dead workers after first timeout period.
Check for dead workers after first timeout period.

wiso/dask,ssanderson/dask,mraspaud/dask,ContinuumIO/dask,clarkfitzg/dask,simudream/dask,ContinuumIO/dask,jakirkham/dask,dask/dask,chrisbarber/dask,cowlicks/dask,wiso/dask,jcrist/dask,mikegraham/dask,gameduell/dask,simudream/dask,jcrist/dask,jayhetee/dask,blaze/dask,mraspaud/dask,PhE/dask,pombredanne/dask,cpcloud/dask,pombredanne/dask,jakirkham/dask,vikhyat/dask,clarkfitzg/dask,blaze/dask,jayhetee/dask,mrocklin/dask,vikhyat/dask,mrocklin/dask,ssanderson/dask,PhE/dask,dask/dask