these 4 derivations will be built:
  /nix/store/35qn9mwhmbwsml305a9agmi4cy6q4f7a-source.drv
  /nix/store/ahh9vhwbg7y2qx3dvmif35bir4zwnq7k-jscpd-5.3.0-vendor-staging.drv
  /nix/store/lap3234a2nnqgvwnh1qjhk28qk947r99-jscpd-5.3.0-vendor.drv
  /nix/store/nsls4ri043r1l2cqbh7pxl65vqqr67b3-jscpd-5.3.0.drv