these 3 derivations will be built:
  /nix/store/767kcg4f625iq9vrzdqskdgvrykzy28j-pi-src-with-lock.drv
  /nix/store/2yy13vnvh8qgcqp39mp69x9qmn64cj1x-pi-1.3.0.drv
  /nix/store/ha164h0xscs45n7m3jiqyksgbk3mbx79-check-pi.drv