these 4 derivations will be built:
  /nix/store/nf2adizm86pdip97yf75zhyy00dn4nyi-source.drv
  /nix/store/llfdjlkff90rxr3q1x3g9fyghl39ziiv-code-0.6.173-vendor-staging.drv
  /nix/store/7qj790hdpsk5vcm70spdnpyvr87v98g2-code-0.6.173-vendor.drv
  /nix/store/amb9v0kvv2l620vm2y0jakzc38fgn0mp-code-0.6.173.drv