Backtrace: In ice-9/boot-9.scm: 1736:10 18 (with-exception-handler _ _ #:unwind? _ #:unwind-for-type _) In unknown file: 17 (apply-smob/0 #) In ice-9/boot-9.scm: 718:2 16 (call-with-prompt _ _ #) In ice-9/eval.scm: 619:8 15 (_ #(#(#))) In guix/ui.scm: 2115:12 14 (run-guix-command _ . _) In guix/scripts/import.scm: 120:11 13 (guix-import . _) In guix/scripts/import/pypi.scm: 99:23 12 (guix-import-pypi . _) In guix/memoization.scm: 98:0 11 (mproc "black-macchiato") In unknown file: 10 (_ # # ("black-macchiato")) In guix/import/pypi.scm: 477:21 9 (_ _) 121:9 8 (pypi-fetch "black-macchiato") In guix/import/json.scm: 45:2 7 (json-fetch _ #:headers _) In ice-9/boot-9.scm: 1736:10 6 (with-exception-handler _ _ #:unwind? _ #:unwind-for-type _) In guix/import/json.scm: 50:19 5 (_) In guix/http-client.scm: 87:25 4 (http-fetch _ #:port _ #:text? _ #:buffered? _ #:verify-certificate? _ #:headers _) In guix/build/download.scm: 436:4 3 (open-connection-for-uri _ #:timeout _ #:verify-certificate? _) 437:14 2 (thunk) 361:16 1 (open-socket-for-uri _ #:timeout _) In ice-9/boot-9.scm: 1669:16 0 (raise-exception _ #:continuable? _) ice-9/boot-9.scm:1669:16: In procedure raise-exception: In procedure struct-vtable: Wrong type argument in position 1 (expecting struct): #f