these 6 derivations will be built:
  /nix/store/192wjhm869r8p1xwwrfh6vy8ijcyagvn-nixos-system-server-test.drv
  /nix/store/jdfc05na5c8ydrpah2h3irzr5dk91n0i-nixos-system-client-test.drv
  /nix/store/2rfvlvhz3i73bzmbv268ibmyplipykz3-closure-info.drv
  /nix/store/mfyrgbs0sv2i49j9bqknl4q7w4wd1nsp-closure-info.drv
  /nix/store/shsf33jbsjz464imjscipnfbrbw5w6ag-nixos-test-driver-sshd.drv
  /nix/store/68jagh86jjhls8cqyvvn34gmhkbf3fmf-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
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
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy