these 21 derivations will be built:
  /nix/store/0paphwp2d315s80yr8wbq61y9kskx3h8-source.drv
  /nix/store/34sm9c58q63p798gjz1jry98s20ir1yw-vendor-cargo-deps.drv
  /nix/store/qimkq312dxp9d4n1lvj0gh7gmpjhf1hk-tincd-deps-0.1.0.drv
  /nix/store/ni5rkvli4gksf8j8b6msi8z5z7fc2508-tincd-0.1.0.drv
  /nix/store/cfa0qsgb4sj56am7iypjs8vkzb4iiyz3-unit-tinc.mesh.service.drv
  /nix/store/x3isl5d5jvrh30xx4bza0h0a0sngrzm1-system-path.drv
  /nix/store/lpsczfbly4k8ym1bg063m85msw92fspc-dbus-1.drv
  /nix/store/pbz1gmyjnhzinhwnmcmnhingr7c8l15b-X-Restart-Triggers-dbus-broker.drv
  /nix/store/r3wn8qabhnih37rgnhbr1a8q86nrkr5s-unit-dbus-broker.service.drv
  /nix/store/4w3m06x0wwzc0nal79kw9ykkyvdhxj41-system-units.drv
  /nix/store/qz6322629bq1h8ri90afgxsq4cwm946v-unit-dbus-broker.service.drv
  /nix/store/bv5m42lzpqi1r2pxr5vnb172xm3b63rw-user-units.drv
  /nix/store/90qjlw8v7adswi8bxrxv6cpjmfx3rbf3-etc.drv
  /nix/store/hy32g8l4p5j91d9iahwyamg3k6q2hpqr-activate.drv
  /nix/store/jvd56sn11z1qmcclw0ysfh9jjljqz54x-nixos-system-alpha-test.drv
  /nix/store/kjijwy88adxslz06d9wzgvpqnzpmr7kp-closure-info.drv
  /nix/store/g0bn0rzcj4px3sbc63s06hclq8nki4lm-run-nixos-vm.drv
  /nix/store/d1yznck155qwjlmny26zp7k3q52bf4pd-nixos-vm.drv
  /nix/store/c8pv6drznbzf2gf8mc9mgsficwwlbp3c-driverConfiguration.json.drv
  /nix/store/0v69j7agrsaq1l5rg80i4cqyjzj1m6f0-nixos-test-driver-tincd-nixos-crossimpl.drv
  /nix/store/6x17cy1zxqaz9kivxwhklxhvzlgf7kjc-vm-test-run-tincd-nixos-crossimpl.drv
Failed to find a machine for remote build!
derivation: 6x17cy1zxqaz9kivxwhklxhvzlgf7kjc-vm-test-run-tincd-nixos-crossimpl.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], [])