these 10 derivations will be built:
  /nix/store/pc61da854jrhas02sx5zq0s68hbggy3p-system-units.drv
  /nix/store/pzsv994kmnf33kkprg9pvwgzqj1cnhxv-etc.drv
  /nix/store/w0ckxa6jjif4189mbaggdl1w3gi94l37-activate.drv
  /nix/store/wimw2dd3cqnihk9i44lacqm2nbrqbhqy-nixos-system-server-test.drv
  /nix/store/2jq188g17wwx60pwm4h1zyvw00kychbz-closure-info.drv
  /nix/store/4qswdfq1aan7n94csx0kchzxihn04wha-run-nixos-vm.drv
  /nix/store/j2byvmadhnwn02qx6kdg4c0wddk5irvv-nixos-vm.drv
  /nix/store/6gx551nd2lnfaw6hssrk8qc5hg7vh1a9-driverConfiguration.json.drv
  /nix/store/iixhiav9n0l3cfv3j12ypq81p7pzcy0k-nixos-test-driver-nixos-test-read-proxy.drv
  /nix/store/m6jm501pj0vc7r0lnryfvk2f88rmqhnw-vm-test-run-nixos-test-read-proxy.drv
Failed to find a machine for remote build!
derivation: m6jm501pj0vc7r0lnryfvk2f88rmqhnw-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], [])