these 2 derivations will be built:
  /nix/store/n9j0bdnnkywyn2wdkbsljvxki1m7lycq-cargo-vendor-dir.drv
  /nix/store/7yvjpyqs3f62jirnwjjwlg302m78y5nr-horae-sqlx-prepare-0.1.0.drv