[DRE-maint] Bug#839494: ruby-combustion: FTBFS: ERROR: Test "ruby2.3" failed: Failure/Error: Combustion::Application.initialize!

[Lucas Nussbaum]

Source: ruby-combustion
Version: 0.5.4-1
Severity: serious
Tags: stretch sid
User: debian-qa at lists.debian.org
Usertags: qa-ftbfs-20161001 qa-ftbfs
Justification: FTBFS on amd64

Hi,

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

Relevant part (hopefully):
>      Failure/Error: Combustion::Application.initialize!
> 
>      TZInfo::DataSourceNotFound:
>        No source of timezone data could be found.
>        Please refer to http://tzinfo.github.io/datasourcenotfound for help resolving this error.
>      # ./lib/combustion.rb:34:in `initialize!'
>      # ./spec/database_spec.rb:8:in `block (3 levels) in <module:Combustion>'
>      # ./spec/database_spec.rb:7:in `chdir'
>      # ./spec/database_spec.rb:7:in `block (2 levels) in <module:Combustion>'
>      # ------------------
>      # --- Caused by: ---
>      # TZInfo::ZoneinfoDirectoryNotFound:
>      #   None of the paths included in TZInfo::ZoneinfoDataSource.search_path are valid zoneinfo directories.
>      #   ./lib/combustion.rb:34:in `initialize!'
> 
> Finished in 0.23716 seconds (files took 0.56632 seconds to load)
> 1 example, 1 failure
> 
> Failed examples:
> 
> rspec ./spec/database_spec.rb:12 # Combustion::Database run migration from dummy engine
> 
> /usr/bin/ruby2.3 /usr/bin/rspec --pattern ./spec/\*_spec.rb failed
> ERROR: Test "ruby2.3" failed: 

If the failure looks somehow time/timezone related:
Note that this rebuild was performed without the 'tzdata' package
installed in the chroot. tzdata used be (transitively) part of
build-essential, but it no longer is. If this package requires it to
build, it should be added to build-depends. For the release team's
opinion on this, see
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=836940#185

If the failure looks LSB-related:
similarly to tzdata, lsb-base is not installed in the build chroot.

The full build log is available from:
   http://aws-logs.debian.net/2016/10/01/ruby-combustion_0.5.4-1_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.