Lower thread sanitizer history size for CircleCI
Lower thread sanitizer history size for CircleCI

ktnyt/chainer,keisuke-umezawa/chainer,tkerola/chainer,ktnyt/chainer,keisuke-umezawa/chainer,ktnyt/chainer,okuta/chainer,wkentaro/chainer,chainer/chainer,niboshi/chainer,okuta/chainer,niboshi/chainer,jnishi/chainer,hvy/chainer,wkentaro/chainer,hvy/chainer,wkentaro/chainer,niboshi/chainer,jnishi/chainer,hvy/chainer,pfnet/chainer,jnishi/chainer,keisuke-umezawa/chainer,chainer/chainer,keisuke-umezawa/chainer,chainer/chainer,okuta/chainer,chainer/chainer,niboshi/chainer,ktnyt/chainer,jnishi/chainer,okuta/chainer,hvy/chainer,wkentaro/chainer