these 3 derivations will be built:
  /nix/store/zg0bgdaj94jvdc0rp5899s2l1ibn2nhn-compact_str-0.10.0.drv
  /nix/store/d4v30y2c5zzigpwb46rclj5j86sjwp08-cargo-vendor-dir.drv
  /nix/store/nslhx306bpd9dmi1v6p1y7a9hf7sjchz-nixfmt-rs-static-x86_64-unknown-linux-musl-0.5.1.drv