Installation fails on Debian Jessie

[vpetersson]

Not high priority given the age of Debian Jessie, but it is nonetheless an issue:

root@wott-debian-jessie:~# export CLAIM_TOKEN="x" && curl -sL https://install.wott.io | sudo -E bash
Detected operating system as debian/jessie.
Checking for curl...
Detected curl...
Checking for gpg...
Detected gpg...
Running apt-get update... done.
Installing debian-archive-keyring which is needed for installing
apt-transport-https on many Debian systems.
Installing apt-transport-https... done.
Installing /etc/apt/sources.list.d/wott_agent.list...done.
Importing packagecloud gpg key... done.
Running apt-get update... done.

The repository is setup! You can now install packages.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 wott-agent : Depends: rng-tools but it is not installable
E: Unable to correct problems, you have held broken packages.
root@wott-debian-jessie:~#

[a-martynovich]

This is strange. This package exists for Jessie.

[vpetersson]

Strange indeed:

root@wott-debian-jessie:~# apt install rng-tools
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package rng-tools is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'rng-tools' has no installation candidate

root@wott-debian-jessie:~# cat /etc/apt/sources.list
#

# deb cdrom:[Debian GNU/Linux 8.11.1 _Jessie_ - Official amd64 DVD Binary-1 20190211-02:10]/ jessie contrib local main

deb cdrom:[Debian GNU/Linux 8.11.1 _Jessie_ - Official amd64 DVD Binary-1 20190211-02:10]/ jessie contrib local main

deb http://security.debian.org/ jessie/updates main contrib
deb-src http://security.debian.org/ jessie/updates main contrib

# jessie-updates, previously known as 'volatile'
# A network mirror was not selected during install.  The following entries
# are provided as examples, but you should amend them as appropriate
# for your mirror of choice.
#
# deb http://ftp.debian.org/debian/ jessie-updates main contrib
# deb-src http://ftp.debian.org/debian/ jessie-updates main contrib
root@wott-debian-jessie:~# cat /etc/apt/sources.list.d/wott_agent.list
# this file was generated by packagecloud.io for
# the repository at https://packagecloud.io/wott/agent

deb https://packagecloud.io/wott/agent/debian/ jessie main
deb-src https://packagecloud.io/wott/agent/debian/ jessie main
root@wott-debian-jessie:~# cat /etc/apt/sources.list
sources.list    sources.list~   sources.list.d/
root@wott-debian-jessie:~# cat /etc/apt/sources.list
#

# deb cdrom:[Debian GNU/Linux 8.11.1 _Jessie_ - Official amd64 DVD Binary-1 20190211-02:10]/ jessie contrib local main

deb cdrom:[Debian GNU/Linux 8.11.1 _Jessie_ - Official amd64 DVD Binary-1 20190211-02:10]/ jessie contrib local main

deb http://security.debian.org/ jessie/updates main contrib
deb-src http://security.debian.org/ jessie/updates main contrib

# jessie-updates, previously known as 'volatile'
# A network mirror was not selected during install.  The following entries
# are provided as examples, but you should amend them as appropriate
# for your mirror of choice.
#
# deb http://ftp.debian.org/debian/ jessie-updates main contrib
# deb-src http://ftp.debian.org/debian/ jessie-updates main contrib