[DRE-maint] Bug#955673: ruby-slim: FTBFS: ERROR: Test "ruby2.7" failed: LoadError: cannot load such file -- rake/testtask

[Lucas Nussbaum]

Source: ruby-slim
Version: 4.0.1-2
Severity: serious
Justification: FTBFS on amd64
Tags: bullseye sid ftbfs
Usertags: ftbfs-20200402 ftbfs-bullseye

Hi,

During a rebuild of all packages in sid, your package failed to build
on amd64.

Relevant part (hopefully):
> LoadError: cannot load such file -- rake/testtask
> /<<PKGBUILDDIR>>/Rakefile:7:in `<top (required)>'
> debian/ruby-tests.rb:4:in `<main>'
> (See full trace by running task with --trace)
> ERROR: Test "ruby2.7" failed: 

The full build log is available from:
   http://qa-logs.debian.net/2020/04/02/ruby-slim_4.0.1-2_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.