package main
import (
	"time"
	"github.com/juju/juju/worker/lease"
)

func main() {
	var m lease.Manager
	m.Claim("a", "b", time.Second)
}


panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x4984f2]

goroutine 1 [running]:
github.com/juju/juju/worker/lease.(*Manager).Claim(0xc420084000, 0x4cdbcc, 0x1, 0x4cdbcd, 0x1, 0x3b9aca00, 0xc420041f78, 0x4995d9)
	/home/rog/src/go/src/github.com/juju/juju/worker/lease/manager.go:122 +0x42
main.main()
	/home/rog/src/tst.go:9 +0x6e