these 11 derivations will be built:
  /nix/store/z8wndz0lwk1r104nasqz4jab8q98f949-unit-niks3.service.drv
  /nix/store/v9sgvqy3jhif71594bj857m8dh00gfrw-system-units.drv
  /nix/store/fgjq4gvnd09jji378jx1bfgj2hvxrvxz-etc.drv
  /nix/store/ww665dbx3jcy8c2hvdzq0q0sgm3hi5c9-activate.drv
  /nix/store/158ih5l6rbpx68lsk09g3sf25wmlyd3d-nixos-system-server-test.drv
  /nix/store/g0lpqkbn6z1f71jg6lmzw78dmp10mir7-closure-info.drv
  /nix/store/qpv5mqmzvjqvnyyv1kw41qq94rfmrgwr-run-nixos-vm.drv
  /nix/store/4sv83if2rgwxnhci29rkq19m0hzyp3k6-nixos-vm.drv
  /nix/store/nz8hrxs29xgcbs2fjq6dhi0mdfclbz6a-driverConfiguration.json.drv
  /nix/store/imzjdamjjjddsj7qi9413fhraaab384f-nixos-test-driver-nixos-test-read-proxy.drv
  /nix/store/4mpg4a2sysn2wb57ik06gjp6bb0p9ghd-vm-test-run-nixos-test-read-proxy.drv
Failed to find a machine for remote build!
derivation: 4mpg4a2sysn2wb57ik06gjp6bb0p9ghd-vm-test-run-nixos-test-read-proxy.drv
required (system, features): (aarch64-linux, [kvm, nixos-test])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])