these 4 derivations will be built:
  /nix/store/q9kfh5mnk0ib14kx2wacjv91dn0asz40-source.drv
  /nix/store/97qxxkiivy09f15vbnc99zm9p8gfxn21-aven-0.1.25-vendor-staging.drv
  /nix/store/w3r123nlvrybkyjm1c0w2ryyk6m88c1j-aven-0.1.25-vendor.drv
  /nix/store/8pyxbrw90p4yy6blqrhf9idn49xay9x7-aven-0.1.25.drv