Terminal log follows. Build log attached.

building /gnu/store/cr5cmzdjs74s32m6yzfl076l292cr7vf-docbook-xsl-
1.79.2-0.fe16c90.drv...
|builder for `/gnu/store/cr5cmzdjs74s32m6yzfl076l292cr7vf-docbook-xsl-
1.79.2-0.fe16c90.drv' failed with exit code 1
build of /gnu/store/cr5cmzdjs74s32m6yzfl076l292cr7vf-docbook-xsl-
1.79.2-0.fe16c90.drv failed
View build log at
'/var/log/guix/drvs/cr/5cmzdjs74s32m6yzfl076l292cr7vf-docbook-xsl-
1.79.2-0.fe16c90.drv.gz'.
Backtrace:
          15 (primitive-load
"/gnu/store/sik3gd8vps1r6qahkj3lrzai1q5q13rx-compute-guix-derivation")
In ice-9/eval.scm:
    155:9 14 (_ _)
    159:9 13 (_ #(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#<directory (guile-u?>
?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?))
In ice-9/boot-9.scm:
    152:2 12 (with-fluid* _ _ _)
    152:2 11 (with-fluid* _ _ _)
In ./guix/store.scm:
  2180:24 10 (run-with-store #<store-connection 256.99 7fbb7a077140>
#<procedure 7fbb67191d20 at ./guix/self.scm:13?> ?)
   2008:8  9 (_ #<store-connection 256.99 7fbb7a077140>)
In ./guix/gexp.scm:
   299:22  8 (_ #<store-connection 256.99 7fbb7a077140>)
   1201:2  7 (_ #<store-connection 256.99 7fbb7a077140>)
   1068:2  6 (_ #<store-connection 256.99 7fbb7a077140>)
    909:4  5 (_ #<store-connection 256.99 7fbb7a077140>)
In ./guix/store.scm:
  2065:12  4 (_ #<store-connection 256.99 7fbb7a077140>)
  1407:13  3 (map/accumulate-builds #<store-connection 256.99
7fbb7a077140> #<procedure 7fbb61515700 at ./guix/stor?> ?)
   1403:5  2 (map/accumulate-builds #<store-connection 256.99
7fbb7a077140> #<procedure 7fbb679e09c0 at ./guix/stor?> ?)
  1419:15  1 (_ #<store-connection 256.99 7fbb7a077140>
("/gnu/store/rclz4h8d3sizp4psr1a3821y7hbzan6p-guix-daemo?" ?) ?)
  1419:15  0 (loop #f)

./guix/store.scm:1419:15: In procedure loop:
ERROR:
  1. &store-protocol-error:
      message: "build of `/gnu/store/xjqlqzvdfnnvj3rl4ivwv4db3c6dr3x0-
graphviz-minimal-7.0.1.drv' failed"
      status: 100
guix pull: error: You found a bug: the program
'/gnu/store/sik3gd8vps1r6qahkj3lrzai1q5q13rx-compute-guix-derivation'
failed to compute the derivation for Guix (version:
"ca813173894360edef35a5d98878a3135e99e62a"; system: "x86_64-linux";
host version: "1.4.0"; pull-version: 1).
Please report the COMPLETE output above by email to <bug-guix@gnu.org>.