Swedebugia,

swedebugia wrote:
> http://ci.guix.gnu.org/search?query=rust-1.30
> ->
> http://ci.guix.gnu.org/build/1303680/details "dependency failed"
>
> What does that mean?
>
> What is going on?

That a package (well, derivation) upon which rust@1.30.1 depends 
failed to build.

I'm almost certain that Cuirass doesn't currently track dependency 
information the way it eventually should, which would mean there's 
no way to find out *which* dependency failed.  The only way to 
find out would be build rust@1.30.1 yourself and see what fails 
before you get to it.  If you do get to it, you managed to build 
something that ci.guix didn't and you should feel proud.

I logged into my substitute server to find out more, but:

  athena.tobias.gr ~ λ guix describe
  Generation 109  Jun 30 2019 21:11:58    (current)
    guix a3d1a34
      repository URL: https://git.savannah.gnu.org/git/guix.git
      branch: master
      commit: a3d1a3487a34820d2a0b3d5e6206e4df1c77c15c
  athena.tobias.gr ~ λ guix build rust@1.30.1
  […]
  /gnu/store/p20fkgdlqqw4dlfqg8jximqg6qpcz7a1-rust-1.30.1

Looks like I already built the entire rust chain successfully. (?)

You're welcome to give my substitute server at https://guix.<my 
domain name> a try (more info at that URL).  I'd be interested in 
both success and failure.  :-)

> Also could somebody tell me how to shut off the tests if I 
> choose to
> build them myself?

Edit the package definition to add ‘#:tests? #f’ to the arguments 
field.  This will change the derivation and all that depend on it 
(so you won't get substitutes for anything that depends on your 
untested rust fork).

Kind regards,

T G-R