Bug#993129: redis-tools 3:3.2.6-3+deb9u6 has broken dependencies

[Nskaggs <nskaggs@wikimedia.org>]

Package: redis-tools
Version: 3:3.2.6-3+deb9u5
Severity: grave
Justification: renders package unusable

Dear Maintainer,

   * What led up to the situation?
Attempting norma apt upgrade attempts to update redis-tools, but requires newer libc and libjemalloc2 which isn't present in strech
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?
apt is in a broken state
   * What outcome did you expect instead?
package to upgrade without issue


-- System Information:
Debian Release: 9.13
  APT prefers oldoldstable-debug
  APT policy: (500, 'oldoldstable-debug'), (500, 'oldoldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-0.bpo.14-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages redis-tools depends on:
ii  libc6         2.24-11+deb9u4
ii  libjemalloc1  3.6.0-9.1

redis-tools recommends no packages.

Versions of packages redis-tools suggests:
pn  ruby-redis  <none>

-- no debconf information