===============================================================================
Failure: test: it does not create accessor methods for parameters(Fluent::Config::TestConfigurable:::skip_accessor option)
/drone/src/test/config/test_configurable.rb:1456:in `block (2 levels) in <class:TestConfigurable>'
     1453:         @example = ConfigurableSpec::ExampleWithSkipAccessor.new
     1454:         @example.configure(config_element('ROOT'))
     1455:         assert_equal 'example7', @example.instance_variable_get(:@name)
  => 1456:         assert_raise NoMethodError.new("undefined method `name' for #{@example}") do
     1457:           @example.name
     1458:         end
     1459:       end

===============================================================================
Failure: test: when out_forward has @id(ForwardOutputTest):
  Exception raised:
  ArgumentError(<wrong number of arguments (given 2, expected 1)>)
  /drone/src/lib/fluent/plugin.rb:120:in `new_sd'
  /drone/src/vendor/bundle/ruby/3.0.0/gems/rr-1.2.1/lib/rr/method_dispatches/method_dispatch.rb:30:in `call_original_method'
  /drone/src/vendor/bundle/ruby/3.0.0/gems/rr-1.2.1/lib/rr/method_dispatches/method_dispatch.rb:41:in `call_implementation'
  /drone/src/vendor/bundle/ruby/3.0.0/gems/rr-1.2.1/lib/rr/method_dispatches/method_dispatch.rb:16:in `call'
  /drone/src/vendor/bundle/ruby/3.0.0/gems/rr-1.2.1/lib/rr/injections/double_injection.rb:183:in `dispatch_method'
  /drone/src/vendor/bundle/ruby/3.0.0/gems/rr-1.2.1/lib/rr/injections/double_injection.rb:40:in `dispatch_method'
  /drone/src/vendor/bundle/ruby/3.0.0/gems/rr-1.2.1/lib/rr/injections/double_injection.rb:148:in `new_sd'
  /drone/src/lib/fluent/plugin_helper/service_discovery/manager.rb:37:in `block in configure'

===============================================================================
Failure: test: Do not create connection per send_data(ForwardOutputTest::keepalive):
  socket_create_tcp("127.0.0.1", 38557, anything)
  Called 2 times.
  Expected 1 times.
/drone/src/test/plugin/test_out_forward.rb:1188:in `block (2 levels) in <class:ForwardOutputTest>'
     1185:
     1186:       begin
     1187:         chunk = Fluent::Plugin::Buffer::MemoryChunk.new(Fluent::Plugin::Buffer::Metadata.new(nil, nil, nil))
  => 1188:         mock.proxy(d.instance).socket_create_tcp(TARGET_HOST, TARGET_PORT, anything) { |sock| mock(sock).close.once; sock }.once
     1189:
     1190:         target_input_driver.run(timeout: 15) do
     1191:           d.run(shutdown: false) do
===============================================================================

$ ruby -v
ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [aarch64-linux]
$ bundle exec gem list

*** LOCAL GEMS ***

async (1.28.9)
async-http (0.54.1)
async-io (1.30.2)
async-pool (0.3.5)
bundler (2.2.11)
concurrent-ruby (1.1.8)
console (1.10.1)
cool.io (1.7.1)
docile (1.3.5)
fiber-local (1.0.0)
flexmock (2.3.6)
fluentd (1.12.1)
http_parser.rb (0.6.0)
msgpack (1.4.2)
nio4r (2.5.5)
oj (3.11.2)
parallel (1.20.1)
parallel_tests (0.15.4)
power_assert (2.0.0)
protocol-hpack (1.4.2)
protocol-http (0.21.0)
protocol-http1 (0.13.2)
protocol-http2 (0.14.2)
rake (13.0.3)
rr (1.2.1)
serverengine (2.2.3)
sigdump (0.2.4)
simplecov (0.21.2)
simplecov-html (0.12.3)
simplecov_json_formatter (0.1.2)
strptime (0.2.5)
test-unit (3.4.0)
test-unit-rr (1.0.5)
timecop (0.9.4)
timers (4.3.3)
tzinfo (2.0.4)
tzinfo-data (1.2021.1)
yajl-ruby (1.4.1)