=== RUN   TestSCTP4Proxy
--- FAIL: TestSCTP4Proxy (0.43s)
panic: interface conversion: net.Addr is nil, not *sctp.SCTPAddr [recovered]
	panic: interface conversion: net.Addr is nil, not *sctp.SCTPAddr
goroutine 46 [running]:
testing.tRunner.func1(0xc0000a4a00)
	/usr/local/go/src/testing/testing.go:874 +0x41a
panic(0x206220, 0xc000063830)
	/usr/local/go/src/runtime/panic.go:679 +0x1d4
github.com/docker/docker/libnetwork/cmd/proxy.NewProxy(0x288640, 0xc000086340, 0x0, 0x0, 0xb, 0x1, 0x28ac00, 0xc000086320)
	/go/src/github.com/docker/docker/libnetwork/cmd/proxy/proxy.go:46 +0x1da
github.com/docker/docker/libnetwork/cmd/proxy.TestSCTP4Proxy(0xc0000a4a00)
	/go/src/github.com/docker/docker/libnetwork/cmd/proxy/network_proxy_test.go:294 +0x260
testing.tRunner(0xc0000a4a00, 0x255408)
	/usr/local/go/src/testing/testing.go:909 +0xd6
created by testing.(*T).Run
	/usr/local/go/src/testing/testing.go:960 +0x36c
FAIL	github.com/docker/docker/libnetwork/cmd/proxy	0.436s