these 3 derivations will be built:
  /nix/store/wbd0fgi94pq1ssxrbcjhcgbq7hqgkig1-rendered.drv
  /nix/store/is2l5qvm31x1xssgkfzm6ikdmzcz5kc5-generated-docs.drv
  /nix/store/r72p7av211xc1q2b64bgw16gzjjdsmd6-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy