these 4 derivations will be built:
  /nix/store/37d3myqgj4hsdf45bag7z2a72n8csmnq-Cargo.toml.drv
  /nix/store/2lqpprf16alkya27bqapaf0l20vi9d3r-source.drv
  /nix/store/6hbxp3fyiaa35794fi0qh3rgkjn0q752-harmonia-deps-3.3.0.drv
  /nix/store/6y4finfmwhd688ziny9awlv2cxxwmdj5-harmonia-clippy-3.3.0.drv