these 4 derivations will be built:
  /nix/store/5scypxbyfq3viqjj77p3g9ybh6b8gfi0-Cargo.toml.drv
  /nix/store/hb6zxgm7dn3yyqaamwjbwr97jzl8gzxg-source.drv
  /nix/store/1bdxy5vq509p4kxgw55yhhb5spnj8daz-harmonia-deps-3.3.0.drv
  /nix/store/pihf9aca1py0rslbpjmw5r56b6nr20bs-harmonia-clippy-3.3.0.drv