The documentation says:
For a detailed list of pre-installed versions, please consult “Build system information” in the build log.
Could someone instruct me where to find the list? I have a log here.
Looks like our current images do not contain this information. It would have appeared in “Build system information” starting at https://travis-ci.com/liyishuai/lngen/builds/100634728#L6.
If you are curious now, you can see what’s in /opt/ghc:
ls /opt/ghc