Please answer the following before submitting your issue:

Note: Please include any substantial examples (debug session output,
stacktraces, etc) as linked gists.

If this is about source listing not showing up (or breakpoints not being
accepted) while running in a container please read our
[FAQ](https://github.com/go-delve/delve/blob/master/Documentation/faq.md#substpath)
first.

1. What version of Delve are you using (`dlv version`)?
2. What version of Go are you using? (`go version`)?
3. What operating system and processor architecture are you using?
4. What did you do?
5. What did you expect to see?
6. What did you see instead?
