these 3 derivations will be built:
  /nix/store/z8w06pmg79jw4hhla4qgd3q3k7zlmd8c-pi-src-with-lock.drv
  /nix/store/98cimr1np0w2inw03dm1qa2j18sca5rl-pi-1.0.4.drv
  /nix/store/fw12f9cil54irhsc4acxjgk2cgp94yh0-check-pi.drv