these 4 derivations will be built:
  /nix/store/dy0f6ykn57zsh8frjpichzpkkjbg9l4r-source.drv
  /nix/store/rx6s4bwhbvy3ag5irb482w3ngjwhymdl-workmux-0.1.247-vendor-staging.drv
  /nix/store/j24imwz4v722glq274cmshv3skj7z86l-workmux-0.1.247-vendor.drv
  /nix/store/vpcsyqcz721vdils752328x53hbwc47b-workmux-0.1.247.drv