this derivation will be built:
  /nix/store/hvybgmdlrh9va2g2bd30a40qiby0kx4q-updater-tests-check.drv
hvybgmdlrh9va2g2bd30a40qiby0kx4q-updater-tests-check.drv: mac02: not scheduled here: hvybgmdlrh9va2g2bd30a40qiby0kx4q-updater-tests-check.drv, asking the scheduler again