Hi, As a reminder about the annoyance of the bug, I get: --8<---------------cut here---------------start------------->8--- $ ./pre-inst-env guix build -m ~/tmp/Guix/list-bioconductor.scm -k -v0 --check guix build: error: all build users are currently in use; consider creating additional users and adding them to the `guixbuild' group --8<---------------cut here---------------end--------------->8--- where list-bioconductor.scm is below. It is annoying because the bug prevents massive rebuild; for instance here the ones from the Bioconductor archive, useful when massive update or to track reproducibility issue. All the best, simon --8<---------------cut here---------------start------------->8--- (use-modules (guix) (gnu) (guix download) (guix svn-download) (guix git-download) (ice-9 match) (srfi srfi-1) (srfi srfi-26)) (define (bioconductor? package) (define (bioc-string? str) (string-contains str "bioconductor.org")) (match (package-source package) ((? origin? o) (match (origin-uri o) ((? string? url) (bioc-string? url)) (((? string? urls) ...) (any bioc-string? urls)) ;or 'find' (_ #f))) (_ #f))) (define packages-from-bioconductor (fold-packages (lambda (package result) (if (bioconductor? package) (cons package result) result)) '())) ;; (map (lambda (pkg) ;; (begin ;; (format #t "~A~%"(package-name pkg)))) ;; packages-from-bioconductor) (specifications->manifest (map package-name packages-from-bioconductor)) --8<---------------cut here---------------end--------------->8---