these 5 derivations will be built:
  /nix/store/8mg4ay5akll5dp750yplgwnsf1chcxk5-clan-runtime.drv
  /nix/store/wvyi45x6hc6m16hyjsn4if6msq5v2n0w-clan-cli-source.drv
  /nix/store/hpahaxdjlszwwvn7zkdia3x4rnfkvqv6-clan-cli.drv
  /nix/store/vm59jdbdn86z8451ra3r2sg1jaaf8rb5-closure-info.drv
  /nix/store/i5x1z0iscr76i0gazqixz93qacw81brq-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy