bug#33626: i686 groff-minimal substitute on berlin.guixsd.org is corrupt

[Ludovic Courtès]

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address@hidden ~/src/guix$ ./pre-inst-env guix build groff-minimal -s i686-linux
1.6 MB will be downloaded:
   /gnu/store/746645dl4fmz9h12x247nyznalswqyzp-groff-minimal-1.22.3
substituting /gnu/store/746645dl4fmz9h12x247nyznalswqyzp-groff-minimal-1.22.3...
downloading from 
https://berlin.guixsd.org/nar/gzip/746645dl4fmz9h12x247nyznalswqyzp-groff-minimal-1.22.3...
 groff-minimal-1.22.3  1.5MiB                                                   
                                                                          
3.9MiB/s 00:00 [##################] 100.0%

sha256 hash mismatch for 
/gnu/store/746645dl4fmz9h12x247nyznalswqyzp-groff-minimal-1.22.3:
  expected hash: 1hc415ngrl2krihzbq2aj9z0ami4797l6i9jqwh44n2f20r5c5hn
  actual hash:   100gkfqzd3l2pqd7zdzlwwlvb94jmj1q2ck85bw573yf1gl6kgjk
substitution of 
/gnu/store/746645dl4fmz9h12x247nyznalswqyzp-groff-minimal-1.22.3 failed
guix build: error: build failed: some substitutes for the outputs of derivation 
`/gnu/store/1hpbzmr0q9cf15a12yihjhaqsbw16v2p-groff-minimal-1.22.3.drv' failed 
(usually happens due to networking is 
address@hidden ~/src/guix$ git describe
v0.16.0-2-gafeeb09639
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