Hi, Mayeul Cantan skribis: > After checking that 9d0b9c7c6c0b0d45653dea80b499314ea415d3c7 (just > after the one I was on) worked all right, I tried a second bissect, > that found 10c413685f13af12fa2bb34796db82e1f52b47af as a possible > cause. After reverting just 10c41 failed, I also reverted 694e10 on > top of that. I thought it had worked as it kept building, but it > failed after a while (slightly different log: gi046...). During that > build phase, a lot of these "unbound variable \x0" kept being printed > to stdout, but I have a limited scrollback and forgot to tee it to a > file beforehand. I could still obtain it if it was necessary. The module-imported-compiled build log you provided shows this: --8<---------------cut here---------------start------------->8--- [ 1/84] Loading './gcrypt/hash.scm'... [ 2/84] Loading './git.scm'... [ 3/84] Loading './gnu/packages/bootstrap.scm'... Backtrace: 19 (primitive-load-path "gnu/packages" #) In ice-9/eval.scm: 721:20 18 (primitive-eval _) In ice-9/psyntax.scm: 1262:36 17 (expand-top-sequence _ _ _ #f _ _ _) 1209:24 16 (parse _ (("placeholder" placeholder)) ((top) #(# # ?)) ?) 285:10 15 (parse _ (("placeholder" placeholder)) (()) _ c&e (eval) ?) In ice-9/eval.scm: 293:34 14 (_ #) In ice-9/boot-9.scm: 2874:4 13 (define-module* _ #:filename _ #:pure _ #:version _ # _ ?) 2887:24 12 (_) 222:29 11 (map1 _) 222:17 10 (map1 (((guix ui)) ((guix utils)) ((guix discovery)) # ?)) 2800:17 9 (resolve-interface (guix ui) #:select _ #:hide _ # _ # _ ?) In ice-9/threads.scm: 390:8 8 (_ _) In ice-9/boot-9.scm: 2726:13 7 (_) In ice-9/threads.scm: 390:8 6 (_ _) In ice-9/boot-9.scm: 2994:20 5 (_) 2312:4 4 (save-module-excursion _) 3014:26 3 (_) In unknown file: 2 (primitive-load-path "guix/ui" #) In ice-9/eval.scm: 223:20 1 (proc #) In unknown file: 0 (%resolve-variable (7 . #) #) ERROR: In procedure %resolve-variable: Unbound variable: #{\x0;\x0;\x0;\x0;\x0; […] --8<---------------cut here---------------end--------------->8--- This hints at a possible memory corruption issue in Guile, especially since it seems to be non-deterministic. That said, I successfully run: $ guix pull -s i686-linux -p /tmp/test […] $ /tmp/test/bin/guix describe Generacio 1 May 29 2020 18:00:54 (nuna) guix 9ff667e repository URL: https://git.savannah.gnu.org/git/guix.git branch: master commit: 9ff667ea05d0807b4e6512c92914ae517b9ec755 Most derivations were built locally. It’s on an x86_64 laptop, though. Is it still crashy for you? Thanks, Ludo’.