// victim caches and no pools have primary caches.
	oldPools, allPools = allPools, nil
}

var (
	allPoolsMu Mutex

	// allPools is the set of pools that have non-empty primary
	// caches. Protected by either 1) allPoolsMu and pinning or 2)
	// STW.
	allPools []*Pool

	// oldPools is the set of pools that may have non-empty victim
	// caches. Protected by STW.
	oldPools []*Pool
)

func init() {

go list asdfasdfasdf  # succeeds because of -e
go list runtime
stdout '[\\/]runtime$'

env GOFLAGS=-race OLDGOARCH=$GOARCH OLDGOOS=$GOOS GOARCH=386 GOOS=linux
! go list runtime
stderr 'race is not supported on linux/386'

env GOARCH=$OLDGOARCH GOOS=$OLDGOOS

# go env succeeds even though -f={{.Dir}} is inappropriate
go env

# bad flags are diagnosed
env GOFLAGS=-typoflag
! go list runtime

	goroot           string
	goextlinkenabled string
	gogcflags        string // For running built compiler
	goldflags        string
	goexperiment     string
	workdir          string
	tooldir          string
	oldgoos          string
	oldgoarch        string
	oldgocache       string
	exe              string
	defaultcc        map[string]string
	defaultcxx       map[string]string
	defaultpkgconfig string
	defaultldso      string