these 4 derivations will be built:
  /nix/store/xsy2ihmqk5cqmaf7c7m6d9isc5kkz7mh-source.drv
  /nix/store/qqyic3mwc5nq7dczvkcr3d1wmfakxy5a-workmux-0.1.238-vendor-staging.drv
  /nix/store/hdv832b8b02fpk4qx2998659k4ws9fj6-workmux-0.1.238-vendor.drv
  /nix/store/qvwnm7vycz9g2zw73h8fj82ynldb41yg-workmux-0.1.238.drv