Hello,

found a bug while runnig guix pull and was ask to report it here.

Host: armbian for cubietruck

I'm happy to provide additonal info.

| 'unpack' phas|Backtrace:
          13 (primitive-load 
"/gnu/store/ffrd6lw9mprydbyyn8kvzq9mwxbpnvap-compute-guix-derivation")
In ice-9/eval.scm:
    155:9 12 (_ _)
    159:9 11 (_ #(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#<directory (guile-u?> 
?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?))
In ice-9/boot-9.scm:
    152:2 10 (with-fluid* _ _ _)
    152:2  9 (with-fluid* _ _ _)
In ./guix/store.scm:
  2123:24  8 (run-with-store #<store-connection 256.99 b4692668> _ 
#:guile-for-build _ #:system _ #:target _)
   1960:8  7 (_ _)
In ./guix/gexp.scm:
   296:22  6 (_ _)
   1180:2  5 (_ _)
   1046:2  4 (_ _)
    892:4  3 (_ _)
In ./guix/store.scm:
  2008:12  2 (_ #<store-connection 256.99 b4692668>)
   1406:5  1 (map/accumulate-builds #<store-connection 256.99 b4692668> 
#<procedure b2e51bb8 at ./guix/store.scm:20?> ?)
  1421:15  0 (_ #<store-connection 256.99 b4692668> _ _)

./guix/store.scm:1421:15: ERROR:
  1. &store-protocol-error:
      message: "build of 
`/gnu/store/2w4scvc76kjx68ly67n2gkpnp945m4jg-git-minimal-2.34.0.drv' 
failed"
      status: 1
guix pull: error: You found a bug: the program 
'/gnu/store/ffrd6lw9mprydbyyn8kvzq9mwxbpnvap-compute-guix-derivation'
failed to compute the derivation for Guix (version: 
"7c9ad54b0616112c7eea6dd02379616aef206490"; system: "armhf-linux";
host version: "1.2.0"; pull-version: 1).
Please report the COMPLETE output above by email to <bug-guix@gnu.org>.