Unable to fetch ubuntu 16.04 image

[Eshakk]

Environment

Replace this with the output of:

$ printf "$(rkt version)\n--\n$(uname -srm)\n--\n$(cat /etc/os-release)\n--\n$(systemctl --version)\n"
rkt Version: 1.30.0
appc Version: 0.8.11
Go Version: go1.12.4
Go OS/Arch: linux/amd64
Features: -TPM +SDJOURNAL
--
Linux 4.19.50-coreos-r1 x86_64
--
NAME="Container Linux by CoreOS"
ID=coreos
VERSION=2135.5.0
VERSION_ID=2135.5.0
BUILD_ID=2019-07-01-1959
PRETTY_NAME="Container Linux by CoreOS 2135.5.0 (Rhyolite)"
ANSI_COLOR="38;5;75"
HOME_URL="https://coreos.com/"
BUG_REPORT_URL="https://issues.coreos.com"
COREOS_BOARD="amd64-usr"
--
systemd 241 (241-23-g05e654e+)
+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK -SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT -GNUTLS -ACL +XZ +LZ4 +SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN +PCRE2 default-hierarchy=legacy
$

What did you do?
Trying to fetch ubuntu 16.04 image from docker.

$ sudo --preserve-env rkt --insecure-options=image fetch "docker://ubuntu:16.04"
Password: 
Downloading sha256:ad9c569a8d9 [=============================]     529 B / 529 B
Downloading sha256:35b42117c43 [=============================] 43.8 MB / 43.8 MB
Downloading sha256:0c175077525 [=============================]     169 B / 169 B
Downloading sha256:293b44f4516 [=============================]     850 B / 850 B
fetch: open /var/lib/rkt/cas/tree/deps-sha512-1a17cd1cda994227627cfecb653dbaf448310f516ccca29dd3112ac6254c2369/rootfs/dev/agpgart: no such device
$

I'm able to fetch 18.04 ubuntu image successfully.