Every now and then, guix updates the list of substitutes.  While doing
so, it displays a bunch of

	substitute: updating list of substitutes from 'https://mirror.hydra.gnu.org'... 100.0%

Sometimes dozens of them in a row.  I don't find it very informative to
show this to the user more than once.  Is there a specific reason to
display it multiple times?

--
Pierre Neidhardt

Would a giant, profit-oriented cartel lie to you?
		-- Top Ten List, Late Night with David Letterman