Weird log output: "marshaling error: json: unsupported type: func() uint64" #1336

[okwme]

Reposting this issue from @mdyring from cosmos/gaia#1336

Summary of Bug

The below looks unexpected but I am unsure how serious this is. Could just be a log artifact.

{"level":"info","module":"x/ibc/client","client-id":"07-tendermint-259","height":"1-3602502","time":"2022-03-15T12:50:58Z","message":"client state updated"}
{"level":"info","module":"x/ibc/channel","dst_channel":"channel-0","dst_port":"transfer","sequence":"marshaling error: json: unsupported type: func() uint64","src_channel":"channel-141","src_port":"transfer","time":"2022-03-15T12:50:58Z","message":"packet acknowledged"}
{"level":"info","module":"x/ibc/channel","dst_channel":"channel-0","dst_port":"transfer","sequence":"marshaling error: json: unsupported type: func() uint64","src_channel":"channel-141","src_port":"transfer","time":"2022-03-15T12:50:58Z","message":"packet acknowledged"}
{"level":"info","module":"x/ibc/channel","dst_channel":"channel-0","dst_port":"transfer","sequence":"marshaling error: json: unsupported type: func() uint64","src_channel":"channel-141","src_port":"transfer","time":"2022-03-15T12:50:58Z","message":"packet acknowledged"}
{"level":"info","module":"x/ibc/channel","dst_channel":"channel-0","dst_port":"transfer","sequence":"marshaling error: json: unsupported type: func() uint64","src_channel":"channel-141","src_port":"transfer","time":"2022-03-15T12:50:58Z","message":"packet acknowledged"}

Version

v6.0.4

Steps to Reproduce

Look in log file ;-)

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For Admin Use

• Not duplicate issue
• Appropriate labels applied
• Appropriate contributors tagged/assigned

[colin-axner]

Thanks for reporting the issue @okwme. It was fixed in #995 and has been included in the v2.1.0 release (note the v2.0.x release line has been discontinued due to the security vulnerability fixed in v2.1.0). A similar logging issue for "acknowledgement written" has also been found and fixed but has yet to be included in a patch release