these 5 derivations will be built:
  /nix/store/gr5lyk23l5dicc8z688y3z1133b8nhya-source.drv
  /nix/store/iyb60jliw8w96h3pwl35qd3h1bizz9q3-workmux-0.1.271-vendor-staging.drv
  /nix/store/3zam100x3b5b3ka5bpcjjwmjzkria43q-workmux-0.1.271-vendor.drv
  /nix/store/hq4mqmi682cyn7qkb1vjm7ncm8ygap04-workmux-0.1.271.drv
  /nix/store/3705ls1big6kllxm16x6zb3lv9h0vn0r-check-workmux.drv