copy t only when in debug mode
copy t only when in debug mode

okuta/chainer,wkentaro/chainer,okuta/chainer,niboshi/chainer,keisuke-umezawa/chainer,hvy/chainer,aonotas/chainer,jnishi/chainer,niboshi/chainer,keisuke-umezawa/chainer,tkerola/chainer,pfnet/chainer,hvy/chainer,ktnyt/chainer,anaruse/chainer,wkentaro/chainer,chainer/chainer,hvy/chainer,wkentaro/chainer,jnishi/chainer,ktnyt/chainer,ronekko/chainer,chainer/chainer,rezoo/chainer,keisuke-umezawa/chainer,niboshi/chainer,hvy/chainer,jnishi/chainer,jnishi/chainer,ktnyt/chainer,niboshi/chainer,chainer/chainer,keisuke-umezawa/chainer,wkentaro/chainer,okuta/chainer,ktnyt/chainer,okuta/chainer,chainer/chainer