/

instead of 'read'; ignore invalid numbers. * tests/cache.scm ("maybe-remove-expired-cache-entries, empty cache") ("maybe-remove-expired-cache-entries, corrupted cache"): New tests. Co-authored-by: Ludovic Courtès <ludo@gnu.org> zimoun stall.scm: Ditto. * gnu/system/vm.scm: Adapt it and remove expression->derivation-in-linux-vm, qemu-img, system-qemu-image/shared-store and system-docker-image procedures. * doc/guix.texi (G-Expressions): Adapt it. Mathieu Othacehe