these 3 derivations will be built:
  /nix/store/xlwin4zghnd4s5h2rrra21rri0xn90fg-pi-src-with-lock.drv
  /nix/store/d8zlbar6i0ffcr6jwiyqxzr3c6hpdrwz-pi-0.87.0.drv
  /nix/store/q2pmd9fx8dnlw3323li3s6n5cskwj7fc-check-pi.drv