Bug#900832: libdbd-csv-perl: FTBFS with Perl 5.28: t/82_free_unref_scalar.t failure

[Niko Tyni]

Package: libdbd-csv-perl
Version: 0.5300-1
Severity: important
User: debian-perl at lists.debian.org
Usertags: perl-5.28-transition
Tags: upstream

This package fails to build with Perl 5.28 (currently in experimental.)

  http://perl.debian.net/rebuild-logs/perl-5.28-throwaway/libdbd-csv-perl_0.5300-1/libdbd-csv-perl_0.5300-1_amd64-2018-06-05T12:44:50Z.build

 #   Failed test 'there was an attempt to free unreferenced scalar'
 #   at /usr/share/perl/5.28/Test/Builder.pm line 158.
 # Attempt to free unreferenced scalar: SV 0x55afb1de20c0, Perl interpreter: 0x55afb02b7260 during global destruction.
 #   Failed test 'there was an attempt to free unreferenced scalar'
 #   at /usr/share/perl/5.28/Test/Builder.pm line 158.
 # Attempt to free unreferenced scalar: SV 0x55afb1da52d0, Perl interpreter: 0x55afb02b7260 during global destruction.
 #   Failed test 'there was an attempt to free unreferenced scalar'
 #   at /usr/share/perl/5.28/Test/Builder.pm line 158.
 # Attempt to free unreferenced scalar: SV 0x55afb1a88210, Perl interpreter: 0x55afb02b7260 during global destruction.
 #   Failed test 'there was an attempt to free unreferenced scalar'
 #   at /usr/share/perl/5.28/Test/Builder.pm line 158.
 # Attempt to free unreferenced scalar: SV 0x55afb1a52e40, Perl interpreter: 0x55afb02b7260 during global destruction.
 [...]
 Test Summary Report
 -------------------
 t/82_free_unref_scalar.t (Wstat: 0 Tests: 409 Failed: 4)
   Failed tests:  406-409
   Parse errors: Plan (1..405) must be at the beginning or end of the TAP output
                 Bad plan.  You planned 405 tests but ran 409.
 Files=24, Tests=1158,  4 wallclock secs ( 0.10 usr  0.03 sys +  3.32 cusr  0.53 csys =  3.98 CPU)
 Result: FAIL

This can also be seen in some (but not all?) CPAN Tester reports for 5.28.*:
 http://www.cpantesters.org/cpan/report/75f506fe-63dd-11e8-8ea5-24704564fd0c
 http://www.cpantesters.org/cpan/report/6c6ace4c-60c8-11e8-8282-5b5a56c0b386

but I don't see an upstream bug.
-- 
Niko Tyni   ntyni at debian.org