these 4 derivations will be built:
  /nix/store/mirzgjbynz3m6s7kfl9p2jrzvy1ydvkr-source.drv
  /nix/store/cjgwch1lifivh5fqszr608jd3aia39j5-workmux-0.1.263-vendor-staging.drv
  /nix/store/mm1kbdqz792g2jr7zqrcdd6fxjd02kjc-workmux-0.1.263-vendor.drv
  /nix/store/xbg2iak4sm3hnjs07x0260s4bhf20xql-workmux-0.1.263.drv