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

[pkill9]

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.