bug#33737: do not attempt to build a package known to be broken

[Björn Höfling]

On Fri, 14 Dec 2018 05:41:37 +0100
Ricardo Wurmus <address@hidden> wrote:

> The default use case is for users to have substitutes enabled and to
> fetch binaries from a build farm.  The build farm tries to build all
> packages, but not all builds succeed.  The daemon caches build
> failures.
> 
> This information, however, is not available for users.  The default
> behaviour of Guix is to attempt building the package locally.  This is
> fine for packages that the build farm hasn’t attempted yet, but it is
> a waste of time when the build has already been attempted without
> success.

+1

Very good idea.

Björn

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