Rescue more errors during `cask upgrade`.
Rescue more errors during `cask upgrade`.

sjackman/homebrew,vitorgalvao/brew,JCount/brew,reitermarkus/brew,EricFromCanada/brew,MikeMcQuaid/brew,mahori/brew,claui/brew,Homebrew/brew,Homebrew/brew,reitermarkus/brew,JCount/brew,konqui/brew,mahori/brew,MikeMcQuaid/brew,vitorgalvao/brew,EricFromCanada/brew,claui/brew,vitorgalvao/brew,MikeMcQuaid/brew,nandub/brew,mahori/brew,EricFromCanada/brew,claui/brew,vitorgalvao/brew,JCount/brew,sjackman/homebrew,nandub/brew,sjackman/homebrew,EricFromCanada/brew,JCount/brew,Homebrew/brew,sjackman/homebrew,konqui/brew,nandub/brew,MikeMcQuaid/brew,Homebrew/brew,mahori/brew,konqui/brew,claui/brew,nandub/brew,reitermarkus/brew,konqui/brew,reitermarkus/brew