Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
Building from this channel:
  guix      https://git.savannah.gnu.org/git/guix.git ffd1994
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
building /gnu/store/pli47dzavnx1jrk0lg8hx7n5pbsmyjfl-guix-1.4.0-33.3355de6-checkout.drv...
-Backtrace:
          14 (primitive-load "/gnu/store/m66ys8z9cjxl43pnzc0cwmylijqj5ifh-compute-guix-derivation")
In ice-9/eval.scm:
    155:9 13 (_ _)
    159:9 12 (_ #(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#<directory (guile-u?> ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?))
In ice-9/boot-9.scm:
    152:2 11 (with-fluid* _ _ _)
    152:2 10 (with-fluid* _ _ _)
In guix/store.scm:
  2210:24  9 (run-with-store #<store-connection 256.99 71bcba1130a0> #<procedure 71bcaa2b6140 at guix/self.scm:1365?> ?)
   2038:8  8 (_ #<store-connection 256.99 71bcba1130a0>)
In guix/gexp.scm:
   300:22  7 (_ #<store-connection 256.99 71bcba1130a0>)
   1226:2  6 (_ #<store-connection 256.99 71bcba1130a0>)
   1093:2  5 (_ #<store-connection 256.99 71bcba1130a0>)
    934:4  4 (_ #<store-connection 256.99 71bcba1130a0>)
In guix/store.scm:
  2095:12  3 (_ #<store-connection 256.99 71bcba1130a0>)
   1433:5  2 (map/accumulate-builds #<store-connection 256.99 71bcba1130a0> #<procedure 71bc9fea9360 at guix/store.?> ?)
  1449:15  1 (_ #<store-connection 256.99 71bcba1130a0> ("/gnu/store/x6bam7ngwr3d1875h58n0ac6hiqkz5vv-guix-daemon-?") ?)
  1449:15  0 (loop #f)

guix/store.scm:1449:15: In procedure loop:
ERROR:
  1. &store-protocol-error:
      message: "build of `/gnu/store/x6bam7ngwr3d1875h58n0ac6hiqkz5vv-guix-daemon-1.4.0-33.3355de6.drv' failed"
      status: 1
guix pull: error: You found a bug: the program '/gnu/store/m66ys8z9cjxl43pnzc0cwmylijqj5ifh-compute-guix-derivation'
failed to compute the derivation for Guix (version: "ffd1994823782018dccc9a54c86b00faf2c9df7d"; system: "x86_64-linux";
host version: "c4fcf8fb627c9ea54a4a639a81766e5df3973fdc"; pull-version: 1).
Please report the COMPLETE output above by email to <bug-guix@gnu.org>.