[DRE-maint] Bug#892561: ruby-session: FTBFS and Debci failure with ruby 2.5

[Adrian Bunk]

Source: ruby-session
Version: 3.2.0-2
Severity: serious
Tags: buster sid

https://ci.debian.net/packages/r/ruby-session/unstable/amd64/
https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ruby-session.html

...
┌──────────────────────────────────────────────────────────────────────────────┐
│ Run tests for ruby2.5 from debian/ruby-test-files.yaml                       │
└──────────────────────────────────────────────────────────────────────────────┘

RUBYLIB=/build/1st/ruby-session-3.2.0/debian/ruby-session/usr/lib/ruby/vendor_ruby:. GEM_PATH=debian/ruby-session/usr/share/rubygems-integration/all:/var/lib/gems/2.5.0:/usr/lib/x86_64-linux-gnu/rubygems-integration/2.5.0:/usr/share/rubygems-integration/2.5.0:/usr/share/rubygems-integration/all ruby2.5 -ryaml -e YAML.load_file\(\"debian/ruby-test-files.yaml\"\).each\ \{\ \|f\|\ require\ f\ \}
Session::VERSION <3.2.0>
Session.use_spawn <false>
Session.use_open3 <false>
Loaded suite -e
Started
.......lines : <[[1555047127.5061197, "-e:1: syntax error, unexpected tIDENTIFIER, expecting end-of-input\n"], [1555047127.5061662, "puts 42; sleep 0.1ruby\n"], [1555047127.5061789, "                  ^~~~\n"]]>
i     : <0>
b     : <[1555047127.5061662, "puts 42; sleep 0.1ruby\n"]>
a     : <[1555047127.5061197, "-e:1: syntax error, unexpected tIDENTIFIER, expecting end-of-input\n"]>
tb    : <1555047127.5061662>
ta    : <1555047127.5061197>
F
===============================================================================
Failure: <false> is not true.
test_9(Session::Test)
/build/1st/ruby-session-3.2.0/test/session.rb:213:in `block (2 levels) in test_9'
     210:             # they all come back at once if thread hung sending cmd...
     211:             # make sure we got output about a second apart...
     212:             begin
  => 213:               assert( (tb - ta) >= 0.1 )
     214:             rescue Exception
     215:               STDERR.puts "lines : <#{ lines.inspect}>"
     216:               STDERR.puts "i     : <#{ i }>"
/build/1st/ruby-session-3.2.0/test/session.rb:33:in `block in timeout'
/build/1st/ruby-session-3.2.0/test/session.rb:33:in `catch'
/build/1st/ruby-session-3.2.0/test/session.rb:33:in `timeout'
/build/1st/ruby-session-3.2.0/test/session.rb:192:in `block in test_9'
/build/1st/ruby-session-3.2.0/test/session.rb:191:in `test_9'
===============================================================================


Finished in 19.559281574 seconds.
------
8 tests, 8 assertions, 1 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
87.5% passed
------
0.41 tests/s, 0.41 assertions/s
ERROR: Test "ruby2.5" failed. Exiting.
dh_auto_install: dh_ruby --install /build/1st/ruby-session-3.2.0/debian/ruby-session returned exit code 1
make: *** [debian/rules:11: binary] Error 1