these 3 derivations will be built:
  /nix/store/ggnyaq2ffbg95qp8wpqap1yfw4zfry3k-rendered.drv
  /nix/store/qp4ahppn6shcica73lawxyjr0xj2hbg2-generated-docs.drv
  /nix/store/ny78dwylqykc6wavwsa17ifd86hpn9xd-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy