Test failure: TestSlimEmbeddedEngines#test_render_with_markdown

[apteryks]

Hello,

I have the failure reported below, where the indentation of the expected source block doesn't match the rendered version:

starting phase `check'
/tmp/guix-build-ruby-slim-4.1.0.drv-0/gem/lib/slim/grammar.rb:7: warning: possibly useless use of | in void context
/tmp/guix-build-ruby-slim-4.1.0.drv-0/gem/lib/slim/grammar.rb:14: warning: possibly useless use of | in void context
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/grammar.rb:35: warning: possibly useless use of | in void context
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/grammar.rb:39: warning: possibly useless use of | in void context
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/grammar.rb:45: warning: possibly useless use of | in void context
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/grammar.rb:51: warning: possibly useless use of | in void context
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby/gems/temple-0.8.2/lib/temple/mixins/grammar_dsl.rb:146: warning: deprecated Object#=~ is called on Class; it always returns nil
Run options: --seed 26405

# Running:

........................................../gnu/store/gvcmscpprfgswq7g14s14w5ci8vyam28-ruby-sassc-2.2.1/lib/ruby/vendor_ruby/gems/sassc-2.2.1/lib/sassc/native.rb:9: warning: assigned but unused variable - dl_ext
...F....................(__TEMPLATE__):3: warning: assigned but unused variable - test
......(__TEMPLATE__):3: warning: assigned but unused variable - a
.........(__TEMPLATE__):2: warning: possibly useless use of a variable in void context
.........................(__TEMPLATE__):4: warning: possibly useless use of a variable in void context
.............................................................(__TEMPLATE__):2: warning: possibly useless use of a variable in void context
.............(__TEMPLATE__):2: warning: possibly useless use of a variable in void context
....(__TEMPLATE__):1: warning: possibly useless use of a variable in void context
...................(__TEMPLATE__):2: warning: possibly useless use of a variable in void context
.(__TEMPLATE__):2: warning: possibly useless use of a variable in void context
.(__TEMPLATE__):2: warning: possibly useless use of a variable in void context
(__TEMPLATE__):4: warning: possibly useless use of a variable in void context
(__TEMPLATE__):5: warning: possibly useless use of a variable in void context
.............(__TEMPLATE__):2: warning: possibly useless use of a variable in void context
..(__TEMPLATE__):2: warning: possibly useless use of a variable in void context
(__TEMPLATE__):3: warning: possibly useless use of a variable in void context
...............................................................................

Finished in 7.188914s, 41.5918 runs/s, 70.9426 assertions/s.

  1) Failure:
TestSlimEmbeddedEngines#test_render_with_markdown [/tmp/guix-build-ruby-slim-4.1.0.drv-0/gem/test/core/test_embedded_engines.rb:25]:
--- expected
+++ actual
@@ -1,10 +1,6 @@
-"<h1 id=\"header\">Header</h1>
-<p>Hello from Markdown!</p>
-
+"<p>#Header Hello from Markdown!</p>
 <p>3</p>
-
 <ul>
-  <li>one</li>
-  <li>two</li>
-</ul>
-"
+<li>one</li>
+<li>two</li>
+</ul>"


299 runs, 510 assertions, 1 failures, 0 errors, 0 skips
rake aborted!
Command failed with status (1)
/gnu/store/xk4rcja1xzi7x7rjg0fbg8rn6xia4nn5-ruby-rake-13.0.1/lib/ruby/vendor_ruby/gems/rake-13.0.1/exe/rake:27:in `<top (required)>'
Tasks: TOP => test => test:core_and_plugins => test:core
(See full trace by running task with --trace)
command "rake" "test" failed with status 1

The build is made is a clean container with GEM_PATH set to the following value: /gnu/store/8ql9jjzl8q291ghsxlkm1wn5bpdvgcqw-ruby-2.6.5/lib/ruby/vendor_ruby:/gnu/store/npgmpxqjhi702j7h26vm614j0w0piymr-ruby-rack-test-0.8.3/lib/ruby/vendor_ruby:/gnu/store/ak55kvgymxrsi2ncs1g4ygmvsvcb00zr-ruby-sinatra-2.0.8.1/lib/ruby/vendor_ruby:/gnu/store/a5f68nhmblgx0r68aaw4bxv9z40z6rp6-ruby-temple-0.8.2/lib/ruby/vendor_ruby:/gnu/store/4bd9jaxj2mgy9bl9zdja44zhpk0z4qvy-ruby-tilt-2.0.9/lib/ruby/vendor_ruby:/gnu/store/mgl46vfaqyrmczshilw39yxgvzjkfmzd-ruby-rack-2.0.6/lib/ruby/vendor_ruby:/gnu/store/ryw4k12yw6nrk415dzgl5p5cwn00pmds-ruby-rack-protection-2.0.5/lib/ruby/vendor_ruby:/gnu/store/wg962hafdbwdxibr8qjc95lzjw7ixjc1-ruby-mustermann-1.0.3/lib/ruby/vendor_ruby:/gnu/store/gvcmscpprfgswq7g14s14w5ci8vyam28-ruby-sassc-2.2.1/lib/ruby/vendor_ruby:/gnu/store/9c7cb7ji56wphh0cbm1szvnzdfvynbj5-ruby-pandoc-ruby-2.1.4/lib/ruby/vendor_ruby:/gnu/store/8z5nv7awf3yiycvhghkiqi02k5f6yzqm-ruby-concurrent-1.1.5/lib/ruby/vendor_ruby:/gnu/store/xk4rcja1xzi7x7rjg0fbg8rn6xia4nn5-ruby-rake-13.0.1/lib/ruby/vendor_ruby:/gnu/store/7xfq2nbflyynknvwni1yxkxxilfx3182-ruby-ffi-1.12.2/lib/ruby/vendor_ruby.