these 6 derivations will be built:
  /nix/store/vcyvj05lg7l2dd2hx8xyb6s2mad9dsnn-crate-toml_writer-1.2.0+spec-1.1.0.tar.gz.drv
  /nix/store/7732awv3miwk3czp7j7h08da9ks6w90s-toml_writer-1.2.0+spec-1.1.0.drv
  /nix/store/jchih8d9f2zil1lagg12j4qhinq19lr6-crate-toml-1.2.0+spec-1.1.0.tar.gz.drv
  /nix/store/iq7ll9g40wk41dbhh7jnqmzfkzin0005-toml-1.2.0+spec-1.1.0.drv
  /nix/store/hyk04qdvd940czcf5a23x8fg5nhg55s0-cargo-vendor-dir.drv
  /nix/store/8v4d81a7dc3ggmxpw0r1ai8lsrjgj164-bob-0.1.0.drv