anchor.diff:              Type = "oneshot";
               ExecStart = "${pkgs.writeScriptBin "test-script" ''
                 #!${bash}/bin/bash
  -              "${cfg.test-driver.script}" >> log/stdout 2>> log/stderr && touch success
  +              if "${cfg.test-driver.script}" >> log/stdout 2>> log/stderr; then
  +                touch success
  +              else
  +                touch failed
  +              fi
                 sync -f .
                 ${pkgs.systemd}/bin/systemctl poweroff --force
               ''}/bin/test-script";
  
positive.code:     if any (n': stringLength n' > stringLength n) (attrNames cfg.tailFiles)
      then padName "${n} " else n;
  
    virshCmds = concatStringsSep ";" (flatten [
      "net-create $build/libvirt/net-test.xml"
      (map (name:
        "create $build/libvirt/dom-${name}.xml --autodestroy"
      ) instNames)
      "event --timeout ${toString cfg.timeout} --domain dom-$testid --event lifecycle"
      (map (name:
        "shutdown dom-$testid-${name}"
       ) (filter (n: n != cfg.test-driver.hostName) instNames))
      "net-destroy net-$testid"
    ]);
  
  
negative.code:         };
          fileShares.run = mkIf (cfg.backend == "lxc") {
            guestPath = "/run";
            hostPath = "/@mnt@/run-${name}";
            readOnly = false;
            neededForBoot = true;
          };
  