more error logging in worker.py
more error logging in worker.py

esc/dask,pombredanne/dask,minrk/dask,marianotepper/dask,jayhetee/dask,jcrist/dask,wiso/dask,esc/dask,blaze/dask,cowlicks/dask,mrocklin/dask,freeman-lab/dask,dask/dask,freeman-lab/dask,chrisbarber/dask,hainm/dask,PhE/dask,jayhetee/dask,jakirkham/dask,clarkfitzg/dask,gameduell/dask,clarkfitzg/dask,wiso/dask,ContinuumIO/dask,hainm/dask,minrk/dask,cpcloud/dask,mrocklin/dask,marianotepper/dask,simudream/dask,jcrist/dask,vikhyat/dask,blaze/dask,mraspaud/dask,simudream/dask,mraspaud/dask,mikegraham/dask,ContinuumIO/dask,PhE/dask,dask/dask,ssanderson/dask,vikhyat/dask,jakirkham/dask,pombredanne/dask,ssanderson/dask