Subject: bug#45051: Acknowledgement (Guix pull fails: `In procedure put-string: Wrong type argument in position 1 (expecting open output port): #<closed: string 7f1182257850>`)

From: pkill9 <[email-masked]>
Date: Sun, 6 Dec 2020 02:14:15 +0000

It's actually doing this for *any* package I build, and it's not
because it can't get substitutes, as running `guix weather hello`
reports that a substitute is available, but it still does this issue
with the `hello` package.