}
# Return the store paths of all succeeded builds of type 'nix-build'
# (i.e. regular packages). Used by the NixOS channel scripts.
sub store_paths : Chained('evalChain') PathPart('store-paths') Args(0) {
    my ($self, $c) = @_;
    my @builds = $c->stash->{eval}->builds
        ->search_literal("exists (select 1 from buildproducts where build = build.id and type = 'nix-build')")
        ->search({ finished => 1, buildstatus => 0 },
                 { columns => [], join => ["buildoutputs"]
                 , '+select' => ['buildoutputs.path'], '+as' => ['outpath'] });
    $self->status_ok(
        $c,
        entity => [sort map {$_->get_column('outpath')} @builds]
    );