[DRE-maint] Bug#795118: ruby-sshkit: FTBFS: SSHKit::TestConfiguration#test_backend flaky

[Chris West (Faux)]

Source: ruby-sshkit
Version: 1.7.1-1
Severity: serious
Justification: fails to build from source
Tags: sid stretch
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs
X-Debbugs-CC: reproducible-builds at lists.alioth.debian.org

Dear Maintainer,

The package sometimes fails to build.  It looks like this test fails
sometimes, or for some reason I can't determine:

SSHKit::TestConfiguration#test_backend [/tmp/buildd/ruby-sshkit-1.7.1/test/unit/test_configuration.rb:39]

# Running:

...............................F...........................................  INFO [e4202b1a] Running /usr/bin/env uname -a as root at localhost
  INFO [e4202b1a] Finished in 0.001 seconds with exit status 0 (successful).
  INFO [457166cc] Running /usr/bin/env  as root at localhost
  INFO [457166cc] Finished in 0.001 seconds with exit status 0 (successful).
  INFO [0f3fa1e0] Running /usr/bin/env pwd as root at localhost
  INFO [0f3fa1e0] Finished in 0.001 seconds with exit status 0 (successful).
.....................

Finished in 18.124758s, 5.2966 runs/s, 10.3174 assertions/s.

  1) Failure:
SSHKit::TestConfiguration#test_backend [/ruby-sshkit-1.7.1/test/unit/test_configuration.rb:39]:
Expected: SSHKit::Backend::Netssh
  Actual: SSHKit::Backend::Printer

96 runs, 187 assertions, 1 failures, 0 errors, 0 skips
rake aborted!


There's currently an example build available here, where the first build
succeeded, and the second failed.  It failed in my local test-rebuild,
too:
https://reproducible.debian.net/rb-pkg/unstable/amd64/ruby-sshkit.html

-- System Information:
Debian Release: stretch/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.19.0-23-generic (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)