Merge pull request #195 from buildkite/pie-1707-log-standard-error-fr…

…om-ruby-test-collector

Log standard error raised during upload

README.md

@@ -73,6 +73,15 @@ git commit -am "Add Buildkite Test Analytics"
 git push origin add-buildkite-test-analytics
 ```
 
+### VCR
+If your test suites use [VCR](https://github.com/vcr/vcr) to stub network requests, you'll need to modify the config to allow actual network requests to Test Analytics.
+
+```
+VCR.configure do |c|
+  c.ignore_hosts "analytics-api.buildkite.com"
+end
+```
+
 ## 🗨️ Annotations
 
 This gem allows adding custom annotations to the span data sent to Buildkite using the [.annotate](https://github.com/buildkite/test-collector-ruby/blob/d9fe11341e4aa470e766febee38124b644572360/lib/buildkite/test_collector.rb#L64) method. For example:

lib/buildkite/test_collector/uploader.rb

@@ -46,6 +46,7 @@ def self.upload(data)
             retry
           end
         rescue StandardError => e
+          $stderr.puts e
           $stderr.puts "#{Buildkite::TestCollector::NAME} #{Buildkite::TestCollector::VERSION} experienced an error when sending your data, you may be missing some executions for this run."
         end
       end