these 3 derivations will be built:
  /nix/store/v67pgkpqzpck6gpmgzb0fndb5m8y5fjz-home-manager-path.drv
  /nix/store/yyq1cmaw8j10i78bgjym5i1lgf1yzsja-activation-script.drv
  /nix/store/cw3axrlqgcwvkm1rxg9qhghqx2z2cwhi-home-manager-generation.drv