these 5 derivations will be built:
  /nix/store/rg2bdifimjz2p32nqbrd4lxrhc21rn69-clan-runtime.drv
  /nix/store/jacfh1im28w1j917zqp8iyyj7411ir62-clan-cli-source.drv
  /nix/store/2v3q7x4j6cqfsw00wp6w5c0mj5f132nd-clan-cli.drv
  /nix/store/qh4w69w72jbf30r395mg3air5ysms9z8-closure-info.drv
  /nix/store/9363z1pjmg2ml55bs354rgngg33sy697-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy