bug#48395: "You found a bug" in compute-guix-derivation

[raid5atemyhomework]

```
$ guix pull
Updating channel 'guix' from Git repository at 
'https://git.savannah.gnu.org/git/guix.git'...
Authenticating channel 'guix', commits 9edb3f6 to 696cf48 (27 new commits)...
Building from this channel:
  guix      https://git.savannah.gnu.org/git/guix.git   696cf48
substitute: updating substitutes from 'https://mirror.sjtu.edu.cn/guix'... 
100.0%
substitute: updating substitutes from 'https://mirror.sjtu.edu.cn/guix'... 
100.0%
substitute: updating substitutes from 'https://mirror.sjtu.edu.cn/guix'... 
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 module-import  2KiB                                                            
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 module-import-compiled  1.8MiB                                                 
                                                                    953KiB/s 
00:02 [##################] 100.0%
 compute-guix-derivation  1004B                                                 
                                                                    173KiB/s 
00:00 [##################] 100.0%
substitute: updating substitutes from 'https://mirror.sjtu.edu.cn/guix'... 
100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: updating substitutes from 'https://mirror.sjtu.edu.cn/guix'... 
100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: updating substitutes from 'https://mirror.sjtu.edu.cn/guix'... 
100.0%
substitute: updating substitutes from 'https://mirror.sjtu.edu.cn/guix'... 
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substitute: updating substitutes from 'https://mirror.sjtu.edu.cn/guix'... 
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 bash  513KiB                                                                   
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 guile-3.0.7.tar.xz  12.6MiB                                                    
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 guile-json-3.5.0  46KiB                                                        
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 guix-1.3.0-1.771b866-checkout  8.4MiB                                          
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 libgc-8.0.4  237KiB                                                            
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 mkdir  312KiB                                                                  
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 tar  578KiB                                                                    
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 xz  323KiB                                                                     
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building /gnu/store/l3k1n1d8zxni80jpxxgzjqrg5yzaj7sl-guile-3.0.7.drv...
- 'check' phasebuilder for 
`/gnu/store/l3k1n1d8zxni80jpxxgzjqrg5yzaj7sl-guile-3.0.7.drv' failed with exit 
code 1
Backtrace:
          13 (primitive-load 
"/gnu/store/2pwr6pr8x583x0fl1wlr9cah6nr46fkk-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:
  2076:24  8 (run-with-store #<store-connection 256.99 7f4ce3c563c0> _ 
#:guile-for-build _ #:system _ #:target _)
   1910:8  7 (_ _)
In ./guix/gexp.scm:
   256:18  6 (_ _)
   1137:2  5 (_ _)
   1003:2  4 (_ _)
    849:4  3 (_ _)
In ./guix/store.scm:
  1958:12  2 (_ #<store-connection 256.99 7f4ce3c563c0>)
   1372:5  1 (map/accumulate-builds #<store-connection 256.99 7f4ce3c563c0> _ _)
  1383:15  0 (_ #<store-connection 256.99 7f4ce3c563c0> _ _)

./guix/store.scm:1383:15: ERROR:
  1. &store-protocol-error:
      message: "build of 
`/gnu/store/qn3022kzrgwzyh1g551zz2yx7n61c8cr-guix-daemon-1.3.0-1.771b866.drv' 
failed"
      status: 100
guix pull: error: You found a bug: the program 
'/gnu/store/2pwr6pr8x583x0fl1wlr9cah6nr46fkk-compute-guix-derivation'
failed to compute the derivation for Guix (version: 
"696cf48b98ad4ef03c88cdb5a83c739618c8fa16"; system: "x86_64-linux";
host version: "b7cbca221f74e9e9ef43c228dca9fa9930babec5"; pull-version: 1).
Please report it by email to <bug-guix@gnu.org>.
```