RuntimeError: profile not started from a Sidekiq worker when profiling is enabled (Vernier)

[vittorius]

Issue Description

I have a project that uses sentry-ruby, sentry-rails, and sentry-sidekiq, all of version 5.21.0. When I enable Profiling according to the docs and deploy the application, I start getting the RuntimeError: profile not started from all of my Sidekiq workers

Reproduction Steps

1. Have a project with Sidekiq workers
2. Enable profiling according to the docs using the Vernier profiler
3. Try running workers

Expected Behavior

No errors, profile samples from workers are visible in Sentry UI

Actual Behavior

RuntimeError: profile not started

Ruby Version

3.3.4

SDK Version

5.21.0

Integration and Its Version

Rails 7.1.4.1, Sidekiq 7.1.6, Vernier 1.3.1

Sentry Config

# frozen_string_literal: true

if Global.sentry.enabled?
  Sentry.init do |config|
    config.dsn = Global.sentry.rails
    config.environment = Global.sentry.environment
    config.release = ENV['DEPLOY_SHA'] || 'no-release'

    # post body, cookies, user IP is not sent to Sentry (the default, but we explicitly agree)
    config.send_default_pii = false

    Warden::Manager.after_set_user do |user|
      Sentry.set_user(id: user&.id)
    end

    config.breadcrumbs_logger = %i[sentry_logger http_logger redis_logger active_support_logger]

    config.traces_sample_rate = 1.0
    config.profiles_sample_rate = 1.0
    config.profiler_class = Sentry::Vernier::Profiler

    config.sidekiq.report_after_job_retries = true
  end
end

[solnic]

Thanks for the report. I'll look into this!

[solnic]

I'm having trouble reproducing this exactly, but I did manage to see Vernier breaking when there's more than one worker running. I still need to investigate what exactly causes this. Will report back when I learn more!