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: Sat, 5 Dec 2020 08:55:32 +0000

with --fallback it is building. It may be the result of the substitute
server not being available, the error may need to be caught.