Try to fix Travis failures
Try to fix Travis failures

stuartarchibald/numba,pitrou/numba,cpcloud/numba,sklam/numba,IntelLabs/numba,stonebig/numba,stonebig/numba,stonebig/numba,pombredanne/numba,stefanseefeld/numba,jriehl/numba,gmarkall/numba,pombredanne/numba,gmarkall/numba,numba/numba,pombredanne/numba,gmarkall/numba,stuartarchibald/numba,sklam/numba,gmarkall/numba,seibert/numba,seibert/numba,cpcloud/numba,pitrou/numba,jriehl/numba,gmarkall/numba,stefanseefeld/numba,numba/numba,cpcloud/numba,IntelLabs/numba,IntelLabs/numba,pitrou/numba,stonebig/numba,pitrou/numba,sklam/numba,stuartarchibald/numba,stuartarchibald/numba,stefanseefeld/numba,IntelLabs/numba,seibert/numba,numba/numba,jriehl/numba,stefanseefeld/numba,jriehl/numba,IntelLabs/numba,jriehl/numba,cpcloud/numba,cpcloud/numba,stonebig/numba,numba/numba,pombredanne/numba,seibert/numba,numba/numba,stefanseefeld/numba,stuartarchibald/numba,pombredanne/numba,pitrou/numba,sklam/numba,sklam/numba,seibert/numba