NoMethodError: undefined method `[]' for nil:NilClass
https://sentry.gitlap.com/gitlab/gitlabcom/issues/8574/
NoMethodError: undefined method `[]' for nil:NilClass
lib/gitlab/metrics/rack_middleware.rb:73:in `tag_endpoint'
path = endpoint_paths_cache[endpoint.route.route_method][endpoint.route.route_path]
lib/gitlab/metrics/rack_middleware.rb:41:in `call'
tag_endpoint(trans, env)
lib/gitlab/middleware/go.rb:16:in `call'
@app.call(env)
lib/gitlab/middleware/readonly_geo.rb:29:in `call'
@app.call(env)
...
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