these 2 derivations will be built:
  /nix/store/lz48ncvyh5nj8l4n8lnqmcadifd1sgj2-cargo-vendor-dir.drv
  /nix/store/p4ydlgxw4gwx4x2jidgpifxs1qc9ds1k-horae-sqlx-prepare-0.1.0.drv