anchor.diff:            chmod a+x .
             chmod a+w -R $build
   
  -          echo "[Starting libvirt machines]"
  +          log "Starting libvirt machines"
             ${pkgs.libvirt}/bin/virsh -c "${cfg.connectionURI}" \
               "${virshCreateCmds}" >/dev/null
             ${pkgs.libvirt}/bin/virsh -c "${cfg.connectionURI}" \
  
positive.code:       timeouts = {
          sleepBetweenRetries = mkOption {
            type = types.int;
            default = 10;
          };
          singleTryTimeout = mkOption {
            type = types.int;
  
negative.code:           done
          }
  
          function now() {
            date +%s
          }
  
          # Variables that are substituted within the libvirt XML files
          testid="$(${pkgs.utillinux}/bin/uuidgen -r)"
          testid="''${testid%%-*}"
  