these 3 derivations will be built:
  /nix/store/1yxlgfcy3b0xz6f2qwhnbp02w5bxc714-source.drv
  /nix/store/mxa9i723297ax0mzxmqpp11fc7vdvfah-harmonia-deps-3.3.0.drv
  /nix/store/fwvwmx8lsdb1f59lby4adn0l515q5ild-harmonia-clippy-3.3.0.drv