[DRE-maint] Bug#895500: ruby-slim FTBFS with ruby-tilt 2.0.8-1

[Adrian Bunk]

Source: ruby-slim
Version: 3.0.7-1
Severity: serious
Tags: buster sid

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ruby-slim.html

...
  1) Error:
TestSlimEmbeddedEngines#test_render_with_builder:
NameError: undefined local variable or method `xml' for #<Env:0x0000559881befdd8 @var="instance", @x=0>
    (__TEMPLATE__):3:in `block in singleton class'
    (__TEMPLATE__):-2:in `instance_eval'
    (__TEMPLATE__):-2:in `singleton class'
    (__TEMPLATE__):-5:in `__tilt_47056743556540'
    /usr/lib/ruby/vendor_ruby/tilt/template.rb:170:in `call'
    /usr/lib/ruby/vendor_ruby/tilt/template.rb:170:in `evaluate'
    /usr/lib/ruby/vendor_ruby/tilt/template.rb:109:in `render'
    /build/1st/ruby-slim-3.0.7/test/core/helper.rb:24:in `render'
    /build/1st/ruby-slim-3.0.7/test/core/helper.rb:47:in `assert_html'
    /build/1st/ruby-slim-3.0.7/test/core/test_embedded_engines.rb:102:in `test_render_with_builder'
    /usr/lib/ruby/vendor_ruby/minitest/test.rb:107:in `block (3 levels) in run'
    /usr/lib/ruby/vendor_ruby/minitest/test.rb:204:in `capture_exceptions'
    /usr/lib/ruby/vendor_ruby/minitest/test.rb:104:in `block (2 levels) in run'
    /usr/lib/ruby/vendor_ruby/minitest/test.rb:255:in `time_it'
    /usr/lib/ruby/vendor_ruby/minitest/test.rb:103:in `block in run'
    /usr/lib/ruby/vendor_ruby/minitest.rb:350:in `on_signal'
    /usr/lib/ruby/vendor_ruby/minitest/test.rb:275:in `with_info_handler'
    /usr/lib/ruby/vendor_ruby/minitest/test.rb:102:in `run'
    /usr/lib/ruby/vendor_ruby/minitest.rb:839:in `run_one_method'
    /usr/lib/ruby/vendor_ruby/minitest.rb:324:in `run_one_method'
    /usr/lib/ruby/vendor_ruby/minitest.rb:311:in `block (2 levels) in run'
    /usr/lib/ruby/vendor_ruby/minitest.rb:310:in `each'
    /usr/lib/ruby/vendor_ruby/minitest.rb:310:in `block in run'
    /usr/lib/ruby/vendor_ruby/minitest.rb:350:in `on_signal'
    /usr/lib/ruby/vendor_ruby/minitest.rb:337:in `with_info_handler'
    /usr/lib/ruby/vendor_ruby/minitest.rb:309:in `run'
    /usr/lib/ruby/vendor_ruby/minitest.rb:159:in `block in __run'
    /usr/lib/ruby/vendor_ruby/minitest.rb:159:in `map'
    /usr/lib/ruby/vendor_ruby/minitest.rb:159:in `__run'
    /usr/lib/ruby/vendor_ruby/minitest.rb:136:in `run'
    /usr/lib/ruby/vendor_ruby/minitest.rb:63:in `block in autorun'

281 runs, 425 assertions, 0 failures, 1 errors, 0 skips
/usr/lib/ruby/vendor_ruby/rake/testtask.rb:130:in `block (3 levels) in define': Command failed with status (1): [ruby -w -I"lib:lib:test/core"  "/usr/lib/ruby/vendor_ruby/rake/rake_test_loader.rb" "test/core/test_code_blocks.rb" "test/core/test_code_escaping.rb" "test/core/test_code_evaluation.rb" "test/core/test_code_output.rb" "test/core/test_code_structure.rb" "test/core/test_commands.rb" "test/core/test_embedded_engines.rb" "test/core/test_encoding.rb" "test/core/test_erb_converter.rb" "test/core/test_html_attributes.rb" "test/core/test_html_escaping.rb" "test/core/test_html_structure.rb" "test/core/test_parser_errors.rb" "test/core/test_pretty.rb" "test/core/test_ruby_errors.rb" "test/core/test_slim_template.rb" "test/core/test_tabs.rb" "test/core/test_text_interpolation.rb" "test/core/test_thread_options.rb" "test/core/test_unicode.rb" ] (RuntimeError)
	from /usr/lib/ruby/vendor_ruby/rake/file_utils.rb:57:in `sh'
	from /usr/lib/ruby/vendor_ruby/rake/file_utils.rb:105:in `ruby'
	from /usr/lib/ruby/vendor_ruby/rake/testtask.rb:117:in `block (2 levels) in define'
	from /usr/lib/ruby/vendor_ruby/rake/file_utils_ext.rb:59:in `verbose'
	from /usr/lib/ruby/vendor_ruby/rake/testtask.rb:111:in `block in define'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:271:in `block in execute'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:271:in `each'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:271:in `execute'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:213:in `block in invoke_with_call_chain'
	from /usr/lib/ruby/2.5.0/monitor.rb:226:in `mon_synchronize'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:193:in `invoke_with_call_chain'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:237:in `block in invoke_prerequisites'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:235:in `each'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:235:in `invoke_prerequisites'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:212:in `block in invoke_with_call_chain'
	from /usr/lib/ruby/2.5.0/monitor.rb:226:in `mon_synchronize'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:193:in `invoke_with_call_chain'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:237:in `block in invoke_prerequisites'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:235:in `each'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:235:in `invoke_prerequisites'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:212:in `block in invoke_with_call_chain'
	from /usr/lib/ruby/2.5.0/monitor.rb:226:in `mon_synchronize'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:193:in `invoke_with_call_chain'
	from /usr/lib/ruby/vendor_ruby/rake/task.rb:182:in `invoke'
	from debian/ruby-tests.rb:5:in `<main>'
ERROR: Test "ruby2.5" failed. Exiting.
dh_auto_install: dh_ruby --install /build/1st/ruby-slim-3.0.7/debian/ruby-slim returned exit code 1
make: *** [debian/rules:4: binary] Error 1