Hi, I saw the following backtrace on core-updates-frozen, commit 869d69ad3248288ffe30264f5e5bd760792ca758, while fetching substitutes:
---snip--- substituting /gnu/store/xbxrx9yqgqbv6949gl9v9h2wm2y1iwqh-scikit-image-0.18.1.tar.gz... downloading from https://ci.guix.gnu.org/nar/xbxrx9yqgqbv6949gl9v9h2wm2y1iwqh-scikit-image-0.18.1.tar.gz ... scikit-image-0.18.1.tar.gz 28.3MiB 8.42GiB/s 00:00 [################ ] 89.9%Backtrace: 19 (apply-smob/0 #<thunk 7f44ee993f60>) In ice-9/boot-9.scm: 724:2 18 (call-with-prompt _ _ #<procedure default-prompt-handle…>) In ice-9/eval.scm: 619:8 17 (_ #(#(#<directory (guile-user) 7f44ee98dc80>))) In guix/ui.scm: 2206:7 16 (run-guix . _) 2169:10 15 (run-guix-command _ . _) In ice-9/boot-9.scm: 1752:10 14 (with-exception-handler _ _ #:unwind? _ # _) In guix/status.scm: 802:4 13 (call-with-status-report _ _) In ice-9/boot-9.scm: 1752:10 12 (with-exception-handler _ _ #:unwind? _ # _) In guix/store.scm: 658:37 11 (thunk) 1320:8 10 (call-with-build-handler _ _) 1320:8 9 (call-with-build-handler #<procedure 7f44ed25e150 at g…> …) In guix/scripts/build.scm: 699:26 8 (_) In guix/store.scm: 1421:15 7 (_ #<store-connection 256.99 7f44ee90ef00> _ _) 759:13 6 (process-stderr _ _) In unknown file: 5 (display "@ substituter-succeeded /gnu/store/xbxrx9yqg…" …) In guix/status.scm: 725:16 4 (write! _ _ _) 639:6 3 (_ (download-progress "/gnu/store/xbxrx9yqgqbv6949g…" …) …) In guix/progress.scm: 223:17 2 (display-download-progress "scikit-image-0.18.1.tar.g@" …) In ice-9/boot-9.scm: 1685:16 1 (raise-exception _ #:continuable? _) 1685:16 0 (raise-exception _ #:continuable? _) ice-9/boot-9.scm:1685:16: In procedure raise-exception: In procedure =: Wrong type argument in position 1: #f ---snap--- However I cannot reproduce it. My guix-daemon is at efd4d36a283acf5441159d4babf25d2054776579 (master). Cheers, Lars