these 16 derivations will be built:
  /nix/store/xmq5z23q4sky1l75x10xsq8c3z5dhsv2-system-path.drv
  /nix/store/681j33hkwsj94kn2sgmkf2f14l6g31xi-dbus-1.drv
  /nix/store/grirr53zl3z0z8knji8wiljvz8rb77mx-X-Restart-Triggers-dbus-broker.drv
  /nix/store/k92yklqkp5m6gl84kwxkxdl15r4z1gc9-unit-dbus-broker.service.drv
  /nix/store/1k04il9rg1lad4rybv706vjjjprqpbf1-user-units.drv
  /nix/store/64n1xr6p4l25byw9v1pfg2lyispychck-unit-dbus-broker.service.drv
  /nix/store/9gmr0a1jvvp87gyvywfcqlx7k9yvdlcx-system-units.drv
  /nix/store/i4k2ri5l6fflxa7b353q3n9b5n0pr4gb-etc.drv
  /nix/store/gxyq9w3j7qh03n1m5v0qhbn1agj3kgfz-activate.drv
  /nix/store/f5a9n3ixp2z6zbwdsm83gjs8szid7mkr-nixos-system-server-test.drv
  /nix/store/d5f23iakx3dja2jqhi2xlnv9x79ld2y7-closure-info.drv
  /nix/store/7ixdxir8dq4kv0sr02lx31cd32bz0zzj-run-nixos-vm.drv
  /nix/store/397m5w5yr49g82jp8k3l5aadpcvz258g-nixos-vm.drv
  /nix/store/75glsj023fa09r07vls51hmybr1hh267-driverConfiguration.json.drv
  /nix/store/h5bah46pcyz0i2cfqbhsm00kabcd53gm-nixos-test-driver-nspawn.drv
  /nix/store/lx9nwqiyglzga1624yrb977dyjfh6r6d-vm-test-run-nspawn.drv
Failed to find a machine for remote build!
derivation: lx9nwqiyglzga1624yrb977dyjfh6r6d-vm-test-run-nspawn.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], [])