these 3 derivations will be built:
  /nix/store/ki56xw3zycdrr5jcr8sc4y8m1qx2yf2k-pi-1.4.0.drv
  /nix/store/j3d6bx9q0ni2ac4ivh33yf265hsij4p7-pi-acp-0.0.34.drv
  /nix/store/n2444xbrmmgssk2k5n8l7gy6cb9j5b3y-check-pi-acp.drv
this path will be fetched (0.0 KiB download, 22.7 MiB unpacked):
  /nix/store/11ggr610na9nqa0d7z8bm750vxrysfpg-pi-src-with-lock