I was doing my first pull request integrate in jdk16, and got disturbing unhelpful timeout messages, but the PR nevertheless got into Integrated state and the JIRA bug is closed.

```
) ~/github/jdk16 $ git pr integrate --verbose 17
Executing 'git rev-parse --git-dir'
Executing 'git rev-parse --show-toplevel'
Executing 'hg root'
Executing 'git config remote.origin.url'
Executing 'git config remote.upstream.url'
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error: timed out waiting for response to /integrate command
```