it strikes again https://travis-ci.com/github/yurishkuro/jaeger/jobs/440719322#L679

=== RUN   TestTBufferedServer_Metrics
    metricstest.go:49: 
        	Error Trace:	metricstest.go:49
        	            				metricstest.go:37
        	            				tbuffered_server_test.go:156
        	Error:      	Not equal: 
        	            	expected: int(1)
        	            	actual  :

See the spec change for details open-telemetry/opentelemetry-specification#1186

Use an audit tool such as Polaris and eliminate as many warnings as possible by default for jaeger chart.