[Bug]: Opentelemetry missing span when using "-o yaml" option

[har-cpol]

Bug

Current behavior

When opentelemtry is enabled, and using "-o yaml" on any command, the last span generated references an unexisting parent span.

On the image:

• Last span has parentId: '2469d70b49e96758'
• No span has been exported with this spanId

In fact, there is no root span at all in this trace - so I expect that the root span is not correctly sent.

Expected behavior

All spans should be exported.
E.g. when we do not add the "-o yaml" option:

Here we do have the root span exported (last one: parentId is undefined)

Reproducible example

Any command that supports -o yaml:

• OTEL_TRACES_EXPORTER=console garden get version -o yaml
• OTEL_TRACES_EXPORTER=console garden get status -o yaml
• OTEL_TRACES_EXPORTER=console garden get test result mytest -o yaml

Workaround

none

Suggested solution(s)

I suspect some span not correctly finished - but I'm not an expert on opentracing api JS

Additional context

• There was no trace parent defined in my environment variables (no OTEL_TRACE_PARENT or TRACEPARENT env variable set)
• On the example runs, I did not have the opentelemtry provider. I did try it before, and if I remember correctly it had same result

Your environment

• OS: Fedora Linux
• How I'm running Kubernetes: N/A

garden version

garden version: 0.13.38

[har-cpol]

Update: Same issue occurs when using "-o json"

[eysi09]

Thanks for the bug report and repro! We'll look into this.