[Nix-dev] hydra build failures

Christian Theune ct at flyingcircus.io
Wed Oct 14 13:00:38 CEST 2015


> On 14 Oct 2015, at 12:57, Eelco Dolstra <eelco.dolstra at logicblox.com> wrote:
> 
> Hi,
> 
> On 14/10/15 12:39, Christian Theune wrote:
> 
>>> You need to update Nixpkgs to get the latest unstable Nix version, which Hydra
>>> requires.
>> 
>> Ah, thanks. I didn’t think about *that* :)
>> 
>> To learn something from this: what was the indicator to notice?
> 
> Hydra build failures in C++ code are almost always due to an outdated Nix. In
> this case it complained about a missing member of nix::BuildResult.

Ah, I guess the namespace is the indicator there. Thanks!

However, how current is current?  http://nixos.org/channels/nixos-unstable seems to be too old?

Christian

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