[DRE-maint] Bug#924830: ruby-carrierwave: FTBFS: build-dependency not installable: ruby-fog (>= 1.42~)

[Lucas Nussbaum]

Source: ruby-carrierwave
Version: 1.3.1-1
Severity: serious
Tags: buster sid
User: debian-qa at lists.debian.org
Usertags: qa-ftbfs-20190315 qa-ftbfs
Justification: FTBFS in buster on amd64

Hi,

During a rebuild of all packages in buster (in a buster chroot, not a
sid chroot), your package failed to build on amd64.

Relevant part (hopefully):
> +------------------------------------------------------------------------------+
> | Install package build dependencies                                           |
> +------------------------------------------------------------------------------+
> 
> 
> Setup apt archive
> -----------------
> 
> Merged Build-Depends: cucumber, debhelper (>= 11~), gem2deb, ghostscript, rake, ruby-activemodel, ruby-activerecord (>= 2:3.2~), ruby-activesupport (>= 2:3.2~), ruby-fog (>= 1.42~), ruby-generator-spec, ruby-json, ruby-mimemagic (>= 0.3.0), ruby-mini-magick (>= 3.6.0), ruby-mysql2, ruby-rmagick, ruby-rspec (>= 2.12~), ruby-sham-rack, default-mysql-server, ruby-timecop, pry
> Filtered Build-Depends: cucumber, debhelper (>= 11~), gem2deb, ghostscript, rake, ruby-activemodel, ruby-activerecord (>= 2:3.2~), ruby-activesupport (>= 2:3.2~), ruby-fog (>= 1.42~), ruby-generator-spec, ruby-json, ruby-mimemagic (>= 0.3.0), ruby-mini-magick (>= 3.6.0), ruby-mysql2, ruby-rmagick, ruby-rspec (>= 2.12~), ruby-sham-rack, default-mysql-server, ruby-timecop, pry
> dpkg-deb: building package 'sbuild-build-depends-ruby-carrierwave-dummy' in '/<<BUILDDIR>>/resolver-Jq9Tan/apt_archive/sbuild-build-depends-ruby-carrierwave-dummy.deb'.
> dpkg-scanpackages: warning: Packages in archive but missing from override file:
> dpkg-scanpackages: warning:   sbuild-build-depends-core-dummy sbuild-build-depends-ruby-carrierwave-dummy
> dpkg-scanpackages: info: Wrote 2 entries to output Packages file.
> Ign:1 copy:/<<BUILDDIR>>/resolver-Jq9Tan/apt_archive ./ InRelease
> Get:2 copy:/<<BUILDDIR>>/resolver-Jq9Tan/apt_archive ./ Release [963 B]
> Ign:3 copy:/<<BUILDDIR>>/resolver-Jq9Tan/apt_archive ./ Release.gpg
> Get:4 copy:/<<BUILDDIR>>/resolver-Jq9Tan/apt_archive ./ Sources [655 B]
> Get:5 copy:/<<BUILDDIR>>/resolver-Jq9Tan/apt_archive ./ Packages [734 B]
> Fetched 2352 B in 0s (0 B/s)
> Reading package lists...
> Reading package lists...
> 
> Install ruby-carrierwave build dependencies (apt-based resolver)
> ----------------------------------------------------------------
> 
> Installing build dependencies
> Reading package lists...
> Building dependency tree...
> Reading state information...
> 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:
>  sbuild-build-depends-ruby-carrierwave-dummy : Depends: ruby-fog (>= 1.42~) but it is not installable
> E: Unable to correct problems, you have held broken packages.
> apt-get failed.

The full build log is available from:
   http://aws-logs.debian.net/2019/03/15/ruby-carrierwave_1.3.1-1_testing.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.