[Reproducible-builds] Bug#794159: FTBFS: Error: my.methods.ai(:plain => true).should_not raise_error(ArgumentError)

[Chris West (Faux)]

Source: ruby-awesome-print
Version: 1.2.0-1
Severity: serious
Tags: sid stretch
Justification: fails to build from source
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs

Dear Maintainer,

The package fails its tests:

F....F......................

Failures:

  1) AwesomePrint Inherited from standard Ruby classes should handle a class that defines its own #send method
     Failure/Error: my.methods.ai(:plain => true).should_not raise_error(ArgumentError)
       expected no ArgumentError but was not given a block
     # ./spec/formats_spec.rb:698:in `block (3 levels) in <top (required)>'

  2) AwesomePrint Inherited from standard Ruby classes should handle a class defines its own #method method (ex. request.method)
     Failure/Error: my.methods.ai(:plain => true).should_not raise_error(ArgumentError)
       expected no ArgumentError but was not given a block
     # ./spec/formats_spec.rb:709:in `block (3 levels) in <top (required)>'

  3) Methods arrays appending garbage to methods array should not raise error
     Failure/Error: arr.ai(:plain => true).should_not raise_error(TypeError)
       expected no TypeError but was not given a block
     # ./spec/methods_spec.rb:452:in `block (2 levels) in <top (required)>'

  4) AwesomePrint Misc returns value passed as a parameter
     Failure/Error: self.stub!(:puts)
     NoMethodError:
       undefined method `stub!' for #<RSpec::ExampleGroups::AwesomePrint_3::Misc:0x000000031c0e00>
     # ./spec/misc_spec.rb:46:in `block (3 levels) in <top (required)>'

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/ruby-awesome-print.html

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.19.0-23-generic (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)