these 4 derivations will be built:
  /nix/store/wn1jljf96jbbik33qd4r6cpa9r13b9m6-source.drv
  /nix/store/fk1x0a35s5pwwkllwir0b23cfbf1bqjw-multica-0.8.2-go-modules.drv
  /nix/store/1jzxv9j65vnchic3vd957bdws4lmn3xd-multica-0.8.2.drv
  /nix/store/0rs1qqxz2cp9l8y8gxsssn0byaqay6k7-check-multica.drv