these 5 derivations will be built:
  /nix/store/30wc3magwr0hqgq4c1mc39w7wkl7acsa-source.drv
  /nix/store/jyr84w9544ysrkclbnrgvx8nawxyd4y0-workmux-0.1.279-vendor-staging.drv
  /nix/store/h4b63px6yrbmd636hqvnw2qmf2pcd3cc-workmux-0.1.279-vendor.drv
  /nix/store/0m1818bras81wk2c53h8pw2xfnp41iww-workmux-0.1.279.drv
  /nix/store/rrz8jcqd51z6kainm78qrn1brrq0hyvk-check-workmux.drv