MergeTrains::CarFinder -- NoMethodError: undefined method `can?' for nil:NilClass
https://sentry.gitlab.net/gitlab/gitlabcom/issues/4123901/?referrer=gitlab_plugin
NoMethodError: undefined method `can?' for nil:NilClass
lib/api/api_guard.rb:219:in `call'
response = super(env)
lib/gitlab/metrics/elasticsearch_rack_middleware.rb:16:in `call'
@app.call(env)
lib/gitlab/middleware/memory_report.rb:13:in `call'
return @app.call(env) unless rendering_memory_profiler?(request)
lib/gitlab/middleware/speedscope.rb:13:in `call'
return @app.call(env) unless rendering_flamegraph?(request)
lib/gitlab/database/load_balancing/rack_middleware.rb:23:in `call'
result = @app.call(env)
...
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