Remove quiet mode for conda environment creation?

[SylvainCorlay]

When using conda, RTD currently makes use of the --quiet option.

conda env create --quiet --name latest --file docs/environment.yml

In case of a build failure, it may actually be useful to access the logs and see the detailed versions that are being installed.

How about removing the --quiet option?

[humitos]

We use the --quiet version to remove the progress bar that populates the output a lot and in most of cases it's not really useful. We already had a report to list the packages installed in a conda environment to do some debugging and because of that we added a feature flag, LIST_PACKAGES_INSTALLED_ENV, that can be enabled per-project by request. See https://docs.readthedocs.io/en/stable/guides/feature-flags.html#feature-flags

[stsewd]

Please let us know the name of your project on Read the Docs, so we can enable the flag for your project. Closing in favor of #7005