Package candidate doesn't generate documentation and no build report is generated

It appears that the documentation for a candidate release of one my projects is not being generated and no build report is being generated.

Here is a link to the candidate release: https://hackage.haskell.org/package/dormouse-client-0.2.1.1/candidate
Here is a link to the (empty) build reports: https://hackage.haskell.org/package/dormouse-client-0.2.1.1/candidate/reports/

It was suggested to me elsewhere to try a version bump per this issue (https://github.com/haskell/hackage-server/issues/512) so I have already done this but it has made no difference. Here is a link to the previous candidate was also affected before this version bump:

https://hackage.haskell.org/package/dormouse-client-0.2.1.0/candidate
https://hackage.haskell.org/package/dormouse-client-0.2.1.0/candidate/reports/

Is it possible that anyone could shed any light on this and how it might be possible to investigate further?