bug#71133: linux-libre-guix.tar.xz CI times out on aarch64-linux

[Christopher Baines]

Richard Sent <richard@freakingpenguin.com> writes:

> Christopher Baines <mail@cbaines.net> writes:
>
>> This derivation seems to have been built fine by the bordeaux build
>> farm:
>>
>>   
>> https://data.guix.gnu.org/gnu/store/ny56fdcig9cd9bd3pssmlraz2c1q10q8-linux-libre-6.8.10-guix.tar.xz.drv
>
> You're right. It looks like the derivation itself built fine based on
> that, but something seems off when the nar is sent. Assuming I
> understand the following correctly:
>
> --8<---------------cut here---------------start------------->8---
> ~/code/cloned/guix/guix $ guix build linux-libre --system=aarch64-linux
> substitute: updating substitutes from 'http://10.1.2.2:80'... 100.0%
> substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 
> 100.0%
> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
> The following derivations will be built:
>   /gnu/store/v471590wpsw1fcnqrrr9bwh52skbb5rn-linux-libre-6.8.10.drv
>   
> /gnu/store/1wi10rg7236ck8k5vdrdfap5l7a9s9z0-linux-libre-6.8.10-guix.tar.xz.drv
> 143.1 MB will be downloaded:
>   /gnu/store/y813phs2n9xnb7zbcr07g0j9509bzbsb-linux-libre-6.8.10-guix.tar.xz
> substituting 
> /gnu/store/y813phs2n9xnb7zbcr07g0j9509bzbsb-linux-libre-6.8.10-guix.tar.xz...
> downloading from 
> https://bordeaux.guix.gnu.org/nar/none/y813phs2n9xnb7zbcr07g0j9509bzbsb-linux-libre-6.8.10-guix.tar.xz
>  ...
>  linux-libre-6.8.10-guix.tar.xz  136.5MiB                                     
>                                      23.9MiB/s 00:06 ▕█████████████████▋▏  
> 98.0%guix substitute: error: corrupt input while restoring 
> '/gnu/store/y813phs2n9xnb7zbcr07g0j9509bzbsb-linux-libre-6.8.10-guix.tar.xz' 
> from #<input: string 7f9644c23b60>
> substitution of 
> /gnu/store/y813phs2n9xnb7zbcr07g0j9509bzbsb-linux-libre-6.8.10-guix.tar.xz 
> failed
> guix build: error: some substitutes for the outputs of derivation 
> `/gnu/store/ny56fdcig9cd9bd3pssmlraz2c1q10q8-linux-libre-6.8.10-guix.tar.xz.drv'
>  failed (usually happens due to networking issues); try `--fallback' to build 
> derivation from source 
> --8<---------------cut here---------------end--------------->8---
>
> Even though the derivation was built, the substitution fails.

Yeah, something's up here specifically with the bordeaux build farm,
feel free to open a new issue.

You can tell something is wrong just by looking at the narinfo:

  https://bordeaux.guix.gnu.org/y813phs2n9xnb7zbcr07g0j9509bzbsb.narinfo

Given there's no compression here, the file size should be the same as
the nar size, but it's not, it's missing a few bytes.

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