these 2 derivations will be built:
  /nix/store/1zpbi8w3fxinqp5v1rgjrsbbxn4xk5vy-source.drv
  /nix/store/kg6fmdbgp4sjxd18fy0sqah4c80biwq6-hax-0.4.0.drv
these 4 paths will be fetched (3.2 MiB download, 16.3 MiB unpacked):
  /nix/store/x1h1misvgsag5hba8qa3qi4v7cv6n253-jansson-2.15.0
  /nix/store/fqrl68ns0pp2k39lb301jfnqv6rhlp9f-jansson-2.15.0-dev
  /nix/store/by8lz2aj6nw13mm1mv08vr1gqlmz0ih5-meson-1.10.2
  /nix/store/gan2c2gpw4w1yi2r5asx6a087fa2a759-ninja-1.13.2