Silence warning about unused variable.
Silence warning about unused variable.

zhenglaizhang/thrust,thvasilo/thrust,dachziegel/thrust,mohamed-ali/thrust,arnabgho/thrust,sdalton1/thrust,thrust/thrust,dachziegel/thrust,mohamed-ali/thrust,andrewcorrigan/thrust-multi-permutation-iterator,Ricardo666666/thrust,marksantos/thrust,GrimDerp/thrust,andrewcorrigan/thrust-multi-permutation-iterator,jaredhoberock/thrust,sarvex/thrust,jaredhoberock/thrust,egaburov/thrust,raygit/thrust,Ricardo666666/thrust,mohamed-ali/thrust,egaburov/thrust,marksantos/thrust,raygit/thrust,raygit/thrust,jaredhoberock/thrust,thvasilo/thrust,GrimDerp/thrust,GrimDerp/thrust,jaredhoberock/thrust,Ricardo666666/thrust,sdalton1/thrust,xiongzhanblake/thrust,andrewcorrigan/thrust-multi-permutation-iterator,egaburov/thrust,xiongzhanblake/thrust_src,zeryx/thrust,xiongzhanblake/thrust,dachziegel/thrust,marksantos/thrust,thrust/thrust,thrust/thrust,arnabgho/thrust,sarvex/thrust,zeryx/thrust,arnabgho/thrust,zhenglaizhang/thrust,thrust/thrust,sarvex/thrust,zeryx/thrust,xiongzhanblake/thrust,thrust/thrust,xiongzhanblake/thrust_src,zhenglaizhang/thrust,xiongzhanblake/thrust_src,sdalton1/thrust,jaredhoberock/thrust,thvasilo/thrust