1these 3 derivations will be built:2 /nix/store/q3p87s7r2xg9fddnlmy83ylm6m94cb8f-cargo-nix-prefetch-0.1.0.drv3 /nix/store/6lhvq4x991m29vdzv5yygwz4asv7r21g-sample-project-cargo-home.drv4 /nix/store/hrm0fs2dpd3bhs7idh7mbjjy6qdyp4hc-cargo-nix-plugin-offline-build-test.drv