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:         uid="$(id -u)"
          gid="$(id -g)"
          pwd="$(pwd)"
          starttime="$(date +%s)"
  
          function run_one_build() {
            export build="$(readlink -m "$(mktemp -dp "$pwd")")"
  
negative.code:       timeouts = {
          sleepBetweenRetries = mkOption {
            type = types.int;
            default = 15;
          };
          singleTryTimeout = mkOption {
            type = types.int;
  