gover.Compare(err.GoVersion, s.TooNew.GoVersion) == 0 && err.What < s.TooNew.What {
			s.TooNew = err
		}
	}
}

// NeedSwitch reports whether Switch would attempt to switch toolchains.
func (s *Switcher) NeedSwitch() bool {
	return s.TooNew != nil && (HasAuto() || HasPath())
}

// Switch decides whether to switch to a newer toolchain
// to resolve any of the saved errors.