curl --unix-socket /var/run/docker.sock -k 'http://localhost/images/json?all=1' | docker run -i --rm nate/dockviz --stdin images -t
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  126k    0  126k    0     0   803k      0 --:--:-- --:--:-- --:--:--  798k
panic: runtime error: index out of range

goroutine 1 [running]:
main.PrintTreeNode(0xc4201f8620, 0xc4201ade50, 0x47, 0xc4201adea0, 0x47, 0x0, 0x0, 0x0, 0xcb45f50b, 0xcb45f50b, ...)
        /go/src/github.com/justone/dockviz/images.go:404 +0x592
main.jsonToText(0xc4201f8620, 0xc4201f45b0, 0x1, 0x1, 0xc420071e90, 0xc400000000, 0xc420012f20, 0x12)
        /go/src/github.com/justone/dockviz/images.go:370 +0x51d
main.jsonToText(0xc4201f8620, 0xc4201f4620, 0x1, 0x1, 0xc420071e90, 0xc400000000, 0xc4201d47f0, 0x10)
        /go/src/github.com/justone/dockviz/images.go:372 +0x650
main.jsonToText(0xc4201f8620, 0xc4201d88c0, 0x2, 0x2, 0xc420071e90, 0xc400000000, 0xc4201d47d0, 0xc)
        /go/src/github.com/justone/dockviz/images.go:365 +0x2f6
main.jsonToText(0xc4201f8620, 0xc4201f4770, 0x1, 0x1, 0xc420071e90, 0xc400000000, 0xc4201d47a0, 0xa)
        /go/src/github.com/justone/dockviz/images.go:372 +0x650
main.jsonToText(0xc4201f8620, 0xc4201d89a0, 0x2, 0x2, 0xc420071e90, 0xc400000000, 0xc4201d4770, 0x6)
        /go/src/github.com/justone/dockviz/images.go:365 +0x2f6
main.jsonToText(0xc4201f8620, 0xc4201d8a80, 0x2, 0x2, 0xc420071e90, 0x0, 0x830155, 0x4)
        /go/src/github.com/justone/dockviz/images.go:365 +0x2f6
main.jsonToText(0xc4201f8620, 0xc4201ea000, 0x36, 0x49, 0xc420071e90, 0xc400000000, 0x0, 0x0)
        /go/src/github.com/justone/dockviz/images.go:365 +0x2f6
main.jsonToTree(0xc4201ea000, 0x36, 0x49, 0xc420071e90, 0x0, 0xc4201e2000, 0x92)
        /go/src/github.com/justone/dockviz/images.go:283 +0xa2
main.(*ImagesCommand).Execute(0xa6ee70, 0xc420071bc0, 0x0, 0x3, 0xa6ee70, 0x1)
        /go/src/github.com/justone/dockviz/images.go:168 +0x491
github.com/justone/dockviz/vendor/github.com/jessevdk/go-flags.(*Parser).ParseArgs(0xc420145f10, 0xc42000e110, 0x3, 0x3, 0x0, 0xc420135f70, 0x4046a4, 0xc42006e058, 0x0)
        /go/src/github.com/justone/dockviz/vendor/github.com/jessevdk/go-flags/parser.go:320 +0x841
github.com/justone/dockviz/vendor/github.com/jessevdk/go-flags.(*Parser).Parse(0xc420145f10, 0x744d9c, 0x0, 0x0, 0x16, 0xc420145f10)
        /go/src/github.com/justone/dockviz/vendor/github.com/jessevdk/go-flags/parser.go:190 +0x71
main.main()
        /go/src/github.com/justone/dockviz/cli.go:30 +0x45