these 2 derivations will be built:
  /nix/store/h52bxsdr37j2yvsmj5cnhya0l4fa65af-source.drv
  /nix/store/zzfp40jarvk1cajlz1prfz0j5i56is4x-foldmason-4-dd3c235.drv
these 5 paths will be fetched (1006.2 KiB download, 2.7 MiB unpacked):
  /nix/store/plzb49mwsq8443vrzdmyzjsz8fgg97jy-bzip2-1.0.8-dev
  /nix/store/1m78bd3si0295217a6x63pi8anf2ap6b-openmp-21.1.8
  /nix/store/9z73im6fqq16hviaamjl69wqpqc83p5w-openmp-21.1.8-dev
  /nix/store/wpw9kk7qfndblw2017byjydbqq32sj01-pkg-config-0.29.2
  /nix/store/b9izmrfjp0qnnyahdwwrzdwi87s1h179-pkg-config-wrapper-0.29.2