[BUG]: ostruct gem warning with Ruby 3.4

[ybiquitous]

Tracer Version(s)

2.8.0

Ruby Version(s)

ruby 3.4.1 (2024-12-25 revision 48d4efcb85) +PRISM [arm64-darwin23]

Relevent Library and Version(s)

No response

Bug Report

In Ruby 3.4, the following warning around the ostruct gem is emitted. We can see it on this CI log:

/home/runner/work/dd-trace-rb/dd-trace-rb/tasks/github.rake:3: warning: ostruct was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0.
You can add ostruct to your Gemfile or gemspec to silence this warning.
/opt/hostedtoolcache/Ruby/3.4.1/x64/bin/ruby -I/home/runner/work/dd-trace-rb/dd-trace-rb/vendor/bundle/ruby/3.4.0/gems/rspec-core-3.13.2/lib:/home/runner/work/dd-trace-rb/dd-trace-rb/vendor/bundle/ruby/3.4.0/gems/rspec-support-3.13.2/lib /home/runner/work/dd-trace-rb/dd-trace-rb/vendor/bundle/ruby/3.4.0/gems/rspec-core-3.13.2/exe/rspec spec/datadog/core/runtime/metrics_spec.rb
/home/runner/work/dd-trace-rb/dd-trace-rb/lib/datadog/di/transport.rb:3: warning: ostruct was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0.
You can add ostruct to your Gemfile or gemspec to silence this warning.

https://github.com/DataDog/dd-trace-rb/actions/runs/12654738134/job/35263335640#step:5:10

Reproduction Code

No response

Configuration Block

No response

Error Logs

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Operating System

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How does Datadog help you?

No response

[ivoanjo]

Hey @ybiquitous, thanks for the report! We spotted it recently as well; we had two other warnings that we're already WIP fixing (#4259, #4257) and this one is the last one.

We should have all fixes out within a release or two.