these 21 derivations will be built:
  /nix/store/g1kajpnkjqr6rynaq31bbbq2zf65rndd-X-Restart-Triggers-dbus-broker.drv
  /nix/store/kqqw87rd99vg1hb5imc5xcdf0ssk2pk6-unit-dbus-broker.service.drv
  /nix/store/5fy11v9l19fadm6yrdynbnqr7s6dklcs-system-units.drv
  /nix/store/jxln83azx3d3l6gk0wlvs4zvbhxpd9m4-unit-dbus-broker.service.drv
  /nix/store/gprzvvkkkk8q7isbrldmkr11nmmdbyp9-user-units.drv
  /nix/store/vy3lfj0acm3gf98y29jvnvx3xz169kix-etc.drv
  /nix/store/25ldfdfc12kgihawf5gzx8a88a948xr5-activate.drv
  /nix/store/5xmc90byvi0v59l17b15dc8p7c433320-nixos-system-server-test.drv
  /nix/store/c82l49nhrnjy326qvwfvniwi3axnjh1p-dbus-1.drv
  /nix/store/jsirz5nr0j5acm7dd3x194hjj4h9n03s-X-Restart-Triggers-dbus-broker.drv
  /nix/store/6s2a516xvlzbbadxn3ij0cv79gmyn5pv-unit-dbus-broker.service.drv
  /nix/store/kfbd3qlwm60cvc446qhdxvpfkhdvf1f9-closure-info.drv
  /nix/store/rdaiwk9dapij607i3j9wwfxr9fxvvvww-unit-dbus-broker.service.drv
  /nix/store/ig5ji2kilpn7vylpyxr3p8bjm3jhp5pi-system-units.drv
  /nix/store/mq27n2qnzc9y087bpkxhygf5z32kx9nh-user-units.drv
  /nix/store/y95ixs1srj6a3hnq2x6y3q8z73mnds6m-etc.drv
  /nix/store/wn1wnw3228h8rx0gckmm7zya7b7970nv-activate.drv
  /nix/store/l4ifzfzvmby9z06751wa8rf70csd7lm2-nixos-system-client-test.drv
  /nix/store/mlcqm2q7whksdn3ibhzcg1nynvc0xymb-closure-info.drv
  /nix/store/yfmzibq5p39iy29y94yklwqqnly9yn8j-nixos-test-driver-sshd.drv
  /nix/store/aqs3qa0nnjpl0mwa4whm0lkbvmp83ii5-container-test-run-sshd.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy