these 2 derivations will be built:
  /nix/store/q9p45746hy6j627xa7zr28qnk26bbnnq-orca-1.4.223.drv
  /nix/store/znzwia5vyvk98c2ajjrq1kw4yp30lchx-check-orca.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy