./ngrok -config ngrok.yml 9015
然后输出日志：

failed MSpanList_Insert 0xb0cbc8 0x1c471193b5bb 0x0
fatal error: MSpanList_Insert

goroutine 1 [running]:
runtime.throw(0x867bcc)
	/Users/aes/src/gonative/go/src/pkg/runtime/panic.c:464 +0x69 fp=0xca1b70
runtime.MSpanList_Insert(0x887948, 0xb0cbc8)
	/Users/aes/src/gonative/go/src/pkg/runtime/mheap.c:544 +0x8a fp=0xca1b98
MHeap_FreeLocked(0x883020, 0xb0cbc8)
	/Users/aes/src/gonative/go/src/pkg/runtime/mheap.c:377 +0x12a fp=0xca1be0
MHeap_AllocLocked(0x883020, 0x1, 0x8)
	/Users/aes/src/gonative/go/src/pkg/runtime/mheap.c:178 +0x228 fp=0xca1c20
runtime.MHeap_Alloc(0x883020, 0x1, 0x8, 0x1)
	/Users/aes/src/gonative/go/src/pkg/runtime/mheap.c:95 +0x7b fp=0xca1c48
MCentral_Grow(0x88a218)
	/Users/aes/src/gonative/go/src/pkg/runtime/mcentral.c:180 +0x8c fp=0xca1ca8
runtime.MCentral_AllocList(0x88a218, 0xb08090)
	/Users/aes/src/gonative/go/src/pkg/runtime/mcentral.c:46 +0x4f fp=0xca1cd0
runtime.MCache_Refill(0xb08000, 0xc200000008)
	/Users/aes/src/gonative/go/src/pkg/runtime/mcache.c:22 +0x7c fp=0xca1cf0
runtime.mallocgc(0x70, 0x2d3b82, 0x0)
	/Users/aes/src/gonative/go/src/pkg/runtime/malloc.goc:71 +0xff fp=0xca1d60
runtime.makechan_c(0x2d3b80, 0x1)
	/Users/aes/src/gonative/go/src/pkg/runtime/chan.c:111 +0xa9 fp=0xca1da0
runtime.makechan(0x2d3b80, 0x1, 0xb10e80)
	/Users/aes/src/gonative/go/src/pkg/runtime/chan.c:136 +0x31 fp=0xca1db8
io/ioutil.init()
	/Users/aes/src/gonative/go/src/pkg/io/ioutil/blackhole.go:7 +0x79 fp=0xca1de0
net/http.init()
	/Users/aes/src/gonative/go/src/pkg/net/http/transport.go:1031 +0x65 fp=0xca1ef8
github.com/inconshreveable/go-update/check.init()
	/Users/aes/src/ngrok/src/github.com/inconshreveable/go-update/check/check.go:211 +0x4a fp=0xca1f38
ngrok/client.init()
	/Users/aes/src/ngrok/src/ngrok/client/update_release.go:101 +0x3d fp=0xca1f40
main.init()
	/Users/aes/src/ngrok/src/ngrok/main/ngrok/ngrok.go:9 +0x3d fp=0xca1f48
runtime.main()
	/Users/aes/src/gonative/go/src/pkg/runtime/proc.c:213 +0xdf fp=0xca1fa0
runtime.goexit()
	/Users/aes/src/gonative/go/src/pkg/runtime/proc.c:1394 fp=0xca1fa8