[DRE-maint] Bug#836595: ruby-celluloid-io: FTBFS too much often (failing tests)

Sun Sep 4 11:35:32 UTC 2016

Package: src:ruby-celluloid-io
Version: 0.16.2-2
Severity: serious

Dear maintainer:

I tried to build this package in stretch with "dpkg-buildpackage -A"
(which is what the "Arch: all" autobuilder would do to build it)
but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep --buildsystem=ruby --with ruby
   dh_testdir -i -O--buildsystem=ruby
   dh_update_autotools_config -i -O--buildsystem=ruby
   dh_auto_configure -i -O--buildsystem=ruby
	dh_ruby --configure
   dh_auto_build -i -O--buildsystem=ruby
	dh_ruby --build
   dh_ruby --build
   dh_auto_test -i -O--buildsystem=ruby
	dh_ruby --test
 fakeroot debian/rules binary-indep
dh binary-indep --buildsystem=ruby --with ruby

[... snipped ...]

     # /usr/lib/ruby/vendor_ruby/rspec/core/example.rb:435:in `block in with_around_example_hooks'
     # /usr/lib/ruby/vendor_ruby/rspec/core/hooks.rb:478:in `block in run'
     # /usr/lib/ruby/vendor_ruby/rspec/core/hooks.rb:616:in `run_around_example_hooks_for'
     # /usr/lib/ruby/vendor_ruby/rspec/core/hooks.rb:478:in `run'
     # /usr/lib/ruby/vendor_ruby/rspec/core/example.rb:435:in `with_around_example_hooks'
     # /usr/lib/ruby/vendor_ruby/rspec/core/example.rb:478:in `with_around_and_singleton_context_hooks'
     # /usr/lib/ruby/vendor_ruby/rspec/core/example.rb:233:in `run'
     # /usr/lib/ruby/vendor_ruby/rspec/core/example_group.rb:581:in `block in run_examples'
     # /usr/lib/ruby/vendor_ruby/rspec/core/example_group.rb:577:in `map'
     # /usr/lib/ruby/vendor_ruby/rspec/core/example_group.rb:577:in `run_examples'
     # /usr/lib/ruby/vendor_ruby/rspec/core/example_group.rb:543:in `run'
     # /usr/lib/ruby/vendor_ruby/rspec/core/runner.rb:119:in `block (3 levels) in run_specs'
     # /usr/lib/ruby/vendor_ruby/rspec/core/runner.rb:119:in `map'
     # /usr/lib/ruby/vendor_ruby/rspec/core/runner.rb:119:in `block (2 levels) in run_specs'
     # /usr/lib/ruby/vendor_ruby/rspec/core/configuration.rb:1680:in `with_suite_hooks'
     # /usr/lib/ruby/vendor_ruby/rspec/core/runner.rb:118:in `block in run_specs'
     # /usr/lib/ruby/vendor_ruby/rspec/core/reporter.rb:77:in `report'
     # /usr/lib/ruby/vendor_ruby/rspec/core/runner.rb:117:in `run_specs'
     # /usr/lib/ruby/vendor_ruby/rspec/core/runner.rb:93:in `run'
     # /usr/lib/ruby/vendor_ruby/rspec/core/runner.rb:78:in `run'
     # /usr/lib/ruby/vendor_ruby/rspec/core/runner.rb:45:in `invoke'
     # /usr/bin/rspec:4:in `<main>'
     # ------------------
     # --- Caused by: ---
     # IO::EAGAINWaitReadable:
     #   Resource temporarily unavailable - read would block
     #   <internal:prelude>:76:in `__read_nonblock'

Deprecation Warnings:

Using `should` from rspec-expectations' old `:should` syntax without explicitly enabling the syntax is deprecated. Use the new `:expect` syntax or explicitly enable `:should` with `config.expect_with(:rspec) { |c| c.syntax = :should }` instead. Called from /<<PKGBUILDDIR>>/spec/celluloid/io/tcp_server_spec.rb:14:in `block (5 levels) in <top (required)>'.

If you need more of the backtrace for any of these deprecations to
identify where to make the necessary changes, you can configure
`config.raise_errors_for_deprecations!`, and it will turn the
deprecation warnings into errors, giving you the full backtrace.

1 deprecation warning total

Finished in 16.67 seconds (files took 0.15227 seconds to load)
230 examples, 1 failure, 2 pending

Failed examples:

rspec ./spec/celluloid/io/reactor_spec.rb:6 # Celluloid::IO::Reactor shouldn't crash

Randomized with seed 47642

/usr/bin/ruby2.3 /usr/bin/rspec --pattern ./spec/\*\*/\*_spec.rb --format documentation failed
ERROR: Test "ruby2.3" failed. Exiting.
dh_auto_install: dh_ruby --install /<<PKGBUILDDIR>>/debian/ruby-celluloid-io returned exit code 1
debian/rules:6: recipe for target 'binary-indep' failed
make: *** [binary-indep] Error 1
dpkg-buildpackage: error: fakeroot debian/rules binary-indep gave error exit status 2
--------------------------------------------------------------------------------

The failure does not seem related to using "dpkg-buildpackage -A".

It does not always fail, but it fails often enough to allow me to
attach 6 different failed build logs to this report.

The builds were made on KVM virtual machines using sbuild and an
up-to-date stretch chroot (plus diffutils 3.5 from unstable, but this
is not the reason it fails), with at least 3 GB of RAM and 4 GB of swap.

BTW: I think the "Randomized with seed xxx" above is a bad idea.
Maintainers often ask bug reporters for "a way to reproduce the error".
But if the build is based on random variables, this becomes an
impossible task. Please consider modifying the build system so that
those random things are always the same.

Thanks.
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