Permission denied on fresh install of Ubuntu 20.04

When I run curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org on a very fresh install of Ubuntu 20.04, I get the error

Warning: /home/carette/.ghcup/cache/ghcup-0.0.6.yaml.tmp: Permission denied

even though ghcup was the one to successfully create the directories .ghcup and .ghcup/cache.

Edited Sep 20, 2021 by carette

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