these 3 derivations will be built:
  /nix/store/qp5ld421960a1k9rvybkxaxynfxj1czn-rendered.drv
  /nix/store/v7ygnl7sjjz5ha271w72wrli0r59569f-generated-docs.drv
  /nix/store/rfbniq20lwy9q1hxkqcwfyhrwjgw6gq1-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy