these 16 derivations will be built:
  /nix/store/izdlfhb5bga2k0hs6ip1aq9klbhf6bgs-system-path.drv
  /nix/store/5ii7qjyyd6fn1dl9hfykymf8prq43i3y-dbus-1.drv
  /nix/store/phf3wzdic4z3a2d68xbb3mag075jl49s-X-Restart-Triggers-dbus-broker.drv
  /nix/store/a4zcsl1axg0r44w1zvnpzpqsjk05c549-unit-dbus-broker.service.drv
  /nix/store/0xi5mmqnlwqq32mj7q5cg7v5pkkj1lz0-system-units.drv
  /nix/store/nsby21ci1as40v6rx46ldzwfx9kqxb36-unit-dbus-broker.service.drv
  /nix/store/58wcwyc1203kf334ri7iwfkifym816v1-user-units.drv
  /nix/store/524qb26mq2q8vdbg7ahz8l92gwikjfrj-etc.drv
  /nix/store/j2cdiias3qjs6ihddn98r6r624b0b4xl-activate.drv
  /nix/store/a19j216wwh2c1ih7v4r8azbr2ly623bw-nixos-system-machine-test.drv
  /nix/store/cmdq252gdw6xsir5080jpay8yjwyj4lg-closure-info.drv
  /nix/store/31f7nl3kqinvyb185bfgqfxf7nmbgx0d-run-nixos-vm.drv
  /nix/store/gas82sjpdvflgz2n8h9r5g6d3i8v5gif-nixos-vm.drv
  /nix/store/si4jyggg23ibv58mz0y8qq82b3kk8a5d-driverConfiguration.json.drv
  /nix/store/h2n7kmq1ppv2zs77h7ync9xsllkzvsjq-nixos-test-driver-systemd-misc.drv
  /nix/store/4shs5ghk5dds0579mfvilxa1x3h7s0vs-vm-test-run-systemd-misc.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
Failed to find a machine for remote build!
derivation: 4shs5ghk5dds0579mfvilxa1x3h7s0vs-vm-test-run-systemd-misc.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], [])