these 4 derivations will be built:
  /nix/store/dw1bhxfnyahwh03gfalqm78jjrfdk90l-source.drv
  /nix/store/r4myj715ffk42kxn4kzslpzqy88f6jf7-workmux-0.1.239-vendor-staging.drv
  /nix/store/bsn7ir7vz0qn3y6hbj2l0s1kslgnnid5-workmux-0.1.239-vendor.drv
  /nix/store/7wqcwhkl8x68afp7f71qa8b2a91sq9vs-workmux-0.1.239.drv